Take a trip to meet the charming, slinky creatures that turn your innards into their home sweet home
Worms have been living inside the human body since Homo sapiens have been around. About half the world's population (over 3 billion people) are in infected with at least one of the three worms—large roundworm, hookworm and whipworm. Most of those afflicted live in developing countries, where there is not enough clean drinking water or effective sanitation systems to keep infected feces from contaminating food and water, and where human excrement is used to fertilize crops. As you browse ahead, please remember that all of these infections are treatable. Hookworm Unlike most parasitic worms, which invade the body through the stomach, hookworm larvae can wiggle in through sweat glands or hair follicles in the skin. This typically happens when people walk, sit or lie on dirt containing human feces contaminated by hookworm larvae. Through the skin and into the blood vessels, the larvae make their way to the lungs, causing coughing and shortness of breath; they then migrate to the throat, where they are swallowed and delivered to the small intestine. They mature into adults measuring about 0.4 inch (10 millimeters) long, causing symptoms such as abdominal pain and anemia—a result of the worm sucking blood out of the intestinal walls. Some 740 million people, mostly those living in the warm, moist climates of Africa, Latin America, Southeast Asia and China, suffer from hookworm infections, according to the World Health Organization (WHO).
The Large Roundworm (Ascaris) Ascariasis, the potentially deadly disease caused by the roundworm Ascaris, is the most common worm infection in humans, affecting as many as 1.5 billion people worldwide annually and striking hardest in tropical and subtropical regions with poor sanitation, according to the U.S. Centers for Disease Control and Prevention (CDC). People often catch ascariasis by ingesting vegetables or fruit grown in soil fertilized with human feces contaminated with its eggs. On hatching in the intestine, the eggs develop into larvae that migrate through the blood and lymph systems into the lungs, causing fever, shortness of breath and wheezing. (Some people actually cough up the larvae.) From the lungs, the larvae make their way up into the throat; there they are swallowed and passed into the small intestine, where they grow into adulthood. (Imagine earthworms as long as one foot, or 30 centimeters, crawling around in your small intestine.) Severe infections can lead to intestinal blockage and death. The WHO estimates that ascariasis causes 60,000 deaths per year, mainly in children.
A Whipworm Trichuris trichiura, commonly known as a whipworm because it looks like a cow whip, grows up to about two inches (50 millimeters, or as long as a thumb). The most common way to catch whipworm is by ingesting dirt containing human feces that are loaded with its eggs (think: children playing in the dirt and then putting their fingers in their mouths). The whipworm, which sets up shop in the large intestine, is what Despommier says may be "the secret to curing Crohn's disease." Patients with Crohn's disease—an autoimmune disorder in which the intestinal tract becomes chronically inflamed, leading to symptoms such as diarrhea, abdominal pain and rectal bleeding—are believed to have small proteins that resemble whipworm proteins jutting from the surfaces of their intestinal cells. Mistaking the protein protrusions for those of a whipworm, the immune system attacks them, causing Crohn's disease, Despommier explains. Studies have shown that when Crohn's patients are infected with whipworm, the body seems to redirect its focus away from its own cells and onto the worms, causing Crohn's symptoms to disappear. The problem with treating Crohn's disease with whipworm, of course, is that the worm causes its own suite of problems, including severe diarrhea, weight loss and anemia. Severe cases [see photo inset] can lead to rectal prolapse, a condition in which the walls of the rectum actually protrude from the anus.
Worldwide, some 800 million people, mostly children in tropical and subtropical climates, are infected with whipworm, according to the National Institute of Allergy and Infectious Diseases.
Lymphatic Filariae Unlike most parasitic worms, which inhabit the intestines, lymphatic filariae live in the lymphatic vessels and nodes. For reasons not completely understood by scientists, the presence of these worms in the lymph system can lead to severe inflammation called elephantiasis, which often affects the legs, arms, genitals and breasts [see photo]. Unfortunately for men, the worms have a propensity for the male genitalia. The worms get inside a person's body when a mosquito carrying their larvae sinks its proboscis into a victim's skin. The larvae travel through the skin and into the lymph vessels where they mature into adults measuring as long as four inches (100 millimeters). According to WHO, the infection usually begins in childhood but often takes years to cause elephantiasis.
Some 120 million people, mostly in the warm, humid climes of south Asia, Africa and the Americas, are infected with these tiny worms, and more than 40 million are disfigured by the infection, according to WHO.
Tapeworm People accidentally ingest immature worms by eating raw or undercooked pork. Once the worms pass into the intestines, they latch onto the intestinal walls with suckers and hooks and begin to grow—and grow. The pork tapeworm shown here, Taenia solium, can grow as long as 20 feet (six meters). Often, people don't even know they have tapeworm until they see the worms—or pieces of them in their stool. If a person ingests the tapeworm eggs (by, for example, drinking water contaminated by egg-laden human feces), the eggs hatch into larvae the stomach and travel into the small intestine. From there, they may enter the bloodstream and migrate to the muscles, eyes or brain, where they can cause seizures, headaches and potentially fatal brain swelling.
Now, if you are interested in teaching your children on the importance of wearing footwear, you could use the video shown below.
Pinworm Pinworm is the most ubiquitous parasitic worm infecting people in temperate climates—places like the U.S., Europe and most of China, which are neither tropical nor polar, but have four seasons. Nearly all children catch pinworm before they reach age 12 (yes, that means you, too) by digesting tiny bits of fecal matter from other kids. Pinworm inhabits the colon and rectum, feeding on Escherichia coli (E. coli) bacteria in the stool. Late at night when children are asleep, the female pinworm, which measures about the length of a staple (0.5 inch or 13 millimeters), emerges from the anus and lays her eggs on the surrounding skin. The eggs are itchy, causing children to scratch and contaminate their fingers. When they suck their thumbs, or touch other children who suck their thumbs, the cycle starts all over again.
A theory says ancient Egypt's Great Pyramid was built using a winding, inclined, interior tunnel through which huge blocks were pushed. The interior ramp would have required open corners (illustration at top) at which the blocks would have enough room to be rotated—probably by workers using wooden cranes—the theory says.
The theory may be supported by new ideas about a hidden room high in the pyramid's outer wall. Egyptologist Bob Brier, shown entering the space, says it is in fact one of those open corners, long since walled in.
Illustration and photograph courtesy Jean-Pierre Houdin
Pyramid Mystery to Be Solved by Hidden Room... By Brian Handwerk for National Geographic News
ON TV Unlocking the Great Pyramid airs Sunday, November 23, at 7 p.m. ET on the National Geographic Channel.
A sealed space in Egypt's Great Pyramid may help solve a centuries-old mystery: How did the ancient Egyptians move two million 2.5-ton blocks to build the ancient wonder?
The little-known cavity may support the theory that the 4,500-year-old monument to Pharaoh Khufu was constructed inside out, via a spiraling, inclined interior tunnel—an idea that contradicts the prevailing wisdom that the monuments were built using an external ramp.
The inside-out theory's key proponent, French architect Jean-Pierre Houdin, says for centuries Egyptologists have ignored evidence staring them in the face.
"The paradigm was wrong," Houdin said. "The idea that the pyramids were built from the outside was just wrong. How can you resolve a problem when the first element you introduce in your thinking is wrong?"
Theories Abound Even the most widely held Great Pyramid construction theories have flaws, Egyptologist Bob Brier said.
For example, a single, straight external ramp would have been impractical, said Brier, of Long Island University in New York.
To deliver blocks to the 481-foot (147-meter) peak at a reasonable grade, the ramp would have had to have been a mile (1.6 kilometers) long and made of stone. And over the decades of the pyramid's construction, workers would have had to continually increase the ramp's height and length as the pyramid rose.
Video Clip From Unlocking the Great Pyramid Documentary
"That's like building two pyramids. And we've never found the remains of such a ramp," Brier said.
Another theory suggests a stone ramp wound around the outside of the Great Pyramid. But an outside ramp would have obscured the pyramid's surface—making it impossible for surveyors to use the corners and edges for necessary calculations during constructions, Brier said.
Greek historian Herodotus, writing around 450 B.C., theorized the use of small, wooden, cranes or levers to lift the blocks.
But, Brier said, "you'd have to have thousands, and they didn't have enough wood in all of Egypt for that," Brier said.
Obsession For Houdin, the Paris architect, the puzzle of the pyramid is a family affair. His father, a civil engineer, came up with the idea of an internal construction ramp a decade ago.
Houdin was soon hooked, as suggested by his recent book, co-written by Brier—The Secret of the Great Pyramid: How One Man's Obsession Led to the Solution of Ancient Egypt's Greatest Mystery.
Houdin eventually left his architecture firm to pursue the inside-out theory full-time.
For what they thought would be a matter of weeks, he and his wife moved into a 236-square-foot (22-square-meter) studio apartment. They ended up staying for four years, as Houdin toiled away at his self-financed project.
Outside Ramp, Then Internal Tunnel
Houdin's theory suggests the Great Pyramid was built in two stages.
First, blocks were hauled up a straight external ramp to build the pyramid's bottom third, which contains most of the monument's mass, Houdin believes.
Houdin says the limestone blocks used in the outside ramp were recycled for the pyramid's upper levels, which might explain why no trace of an original ramp has been found.
Egyptian-archaeology specialist Josef Wegner sees merit in the recycling idea.
"The notion of using the already quarried smaller blocks to build the lower ramp and then dismantling that for use in upper sections would be a very logical approach to speed up the overall construction process," said Wegner of University of Pennsylvania Museum of Archaeology and Anthropology.
After the foundation had been finished, workers began building an inclined, internal, corkscrew tunnel, which would continue its path up and around as the pyramid rose, Houdin said.
Because the tunnel is inside the pyramid, Brier said, "when they finished getting blocks all the way up to the top this ramp disappeared."
New Clue: The Hidden Room
New evidence uncovered about two-thirds of the way up the Great Pyramid supports the inside-out theory, said Houdin, the architect.
At about the 300-foot (90-meter) mark on the northeastern edge lies an open notch.
On a recent expedition with a National Geographic film crew, Brier—aided by a videographer with mountain-climbing experience—scaled perilous crumbling rocks to reach the notch. (The National Geographic Society owns National Geographic News.)
Ducking inside the notch, Brier entered a small L-shaped room.
He wasn't the first to visit the space, but until now Egyptologists had taken little notice of it.
Houdin, the architect, said the feature figures perfectly with his theory.
Open Corners for Turning Blocks?
For the interior tunnel to work, it would have required open areas at the Great Pyramid's four corners, Houdin says. Otherwise the blocks wouldn't have been able to clear the 90-degree turns.
Like railroad roundhouses, these open corners would have given workers room to pivot the blocks—perhaps using wooden cranes—so the stones could be pushed into the next tunnel.
The notch and room are remnants of one such opening, Houdin claims. They are located at one of the spots where Houdin's 3-D computer models suggest they should be.
Inside the corner space, which was apparently walled in as the pyramid was completed, there should be two tunnel entrances at right angles to one another—each leading to a section of the internal ramp, Houdin believes.
Perhaps all that stands between him and the solution to the mystery are massive blocks that thousands of years ago sealed the tunnel, Houdin said.
If this previously known space truly is the missing link in the puzzle of the Great Pyramid's construction, the question remains why no one would have surmised this by now.
Brier said, "If you weren't thinking about internal ramps and notches and you climbed right by this thing, it wouldn't mean anything to you."
The Other Key Clue
Prior to the room brainstorm, Houdin's most important piece of evidence was the product of good luck.
In 1986 a French team in an ultimately fruitless search for hidden chambers in the Great Pyramid had done a survey of the monument's density using a technique called microgravimetry, which measures the strength of local gravitational fields.
Nearly 15 years later, Houdin was presenting his ramp theory at a conference and was approached by a member of the 1986 team.
The man showed Houdin an image from their survey that they'd dismissed as unexplainable.
But to Houdin, and later Brier, the explanation was clear.
The image shows what looks like a spiraling feature inside the structure's outer walls.
"If I hadn't seen that diagram, I'd probably be thinking this is just another theory," Brier said. Next Step: Confirmation
The 1986 image, the notch room, and other evidence may make Houdin's theory plausible, but the case is far from closed.
"As with all archaeological theories, the proof is in the pudding, and many logical and compelling theories have fallen by the wayside under the weight of hard evidence," said the University of Pennsylvania's Wegner.
But "verification of the proposed internal spiral ramp would be a remarkable and groundbreaking discovery," Wegner added.
Houdin believes that verification might soon be possible.
He suggests that an infrared camera—positioned about 150 feet (46 meters) from the pyramid—could potentially record subtle differences in interior materials and temperatures. Those variations could reveal clear-cut "phantoms" of the internal ramp.
"What we need is the authorization, by the Egyptian authorities, to stay around for 18 hours, close to the pyramid, with a cooled infrared camera based on an SUV and to take images of three [pyramid] faces every hour during this period," Houdin said.
"A green light from Cairo and the Great Pyramid mystery is over."
On 18.07.2008 former Vice President Al Gore challenged to reset the way America makes energy choices. It was a powerful, inspiring speech.
He spoke about amazing opportunities -- and how making the correct choices will benefit our environment, our national security, our economy and our energy bills.
Al Gore has issued a powerful challenge: producing 100 percent of our electricity from renewable energy and truly clean carbon-free sources within 10 years. It's achievable, affordable and necessary. And we need to make this break from past habits and old ways of thinking. As he summarized so powerfully:
"We're borrowing money from China to buy oil from the Persian Gulf to burn it in ways that destroy the planet. Every bit of that's got to change."
In the past months he's been hosting a series of solutions summits with engineers, scientists, CEOs, and financiers. This speech pulled together some of the best thinking from those talks -- and highlighted what we each can do to end our dangerous addiction to fossil fuels and solve the climate crisis.
Thousands were present to hear him speak and I know that we'll be hearing a lot about his challenge in the days ahead. Be among the first to take on this challenge.
Watch the speech below and/or read the essence of the speech given below.
Thank you.
ramjee
Ladies and gentlemen:
There are times in the history of our nation when our very way of life depends upon dispelling illusions and awakening to the challenge of a present danger. In such moments, we are called upon to move quickly and boldly to shake off complacency, throw aside old habits and rise, clear-eyed and alert, to the necessity of big changes. Those who, for whatever reason, refuse to do their part must either be persuaded to join the effort or asked to step aside. This is such a moment. The survival of the United States of America as we know it is at risk. And even more - if more should be required - the future of human civilization is at stake.
I don't remember a time in our country when so many things seemed to be going so wrong simultaneously. Our economy is in terrible shape and getting worse, gasoline prices are increasing dramatically, and so are electricity rates. Jobs are being outsourced. Home mortgages are in trouble. Banks, automobile companies and other institutions we depend upon are under growing pressure. Distinguished senior business leaders are telling us that this is just the beginning unless we find the courage to make some major changes quickly.
The climate crisis, in particular, is getting a lot worse - much more quickly than predicted. Scientists with access to data from Navy submarines traversing underneath the North polar ice cap have warned that there is now a 75 percent chance that within five years the entire ice cap will completely disappear during the summer months. This will further increase the melting pressure on Greenland. According to experts, the Jakobshavn glacier, one of Greenland's largest, is moving at a faster rate than ever before, losing 20 million tons of ice every day, equivalent to the amount of water used every year by the residents of New York City.
Two major studies from military intelligence experts have warned our leaders about the dangerous national security implications of the climate crisis, including the possibility of hundreds of millions of climate refugees destabilizing nations around the world.
Just two days ago, 27 senior statesmen and retired military leaders warned of the national security threat from an "energy tsunami" that would be triggered by a loss of our access to foreign oil. Meanwhile, the war in Iraq continues, and now the war in Afghanistan appears to be getting worse.
And by the way, our weather sure is getting strange, isn't it? There seem to be more tornadoes than in living memory, longer droughts, bigger downpours and record floods. Unprecedented fires are burning in California and elsewhere in the American West. Higher temperatures lead to drier vegetation that makes kindling for mega-fires of the kind that have been raging in Canada, Greece, Russia, China, South America, Australia and Africa. Scientists in the Department of Geophysics and Planetary Science at Tel Aviv University tell us that for every one degree increase in temperature, lightning strikes will go up another 10 percent. And it is lightning, after all, that is principally responsible for igniting the conflagration in California today.
Like a lot of people, it seems to me that all these problems are bigger than any of the solutions that have thus far been proposed for them, and that's been worrying me.
I'm convinced that one reason we've seemed paralyzed in the face of these crises is our tendency to offer old solutions to each crisis separately - without taking the others into account. And these outdated proposals have not only been ineffective - they almost always make the other crises even worse.
Yet when we look at all three of these seemingly intractable challenges at the same time, we can see the common thread running through them, deeply ironic in its simplicity: our dangerous over-reliance on carbon-based fuels is at the core of all three of these challenges - the economic, environmental and national security crises.
We're borrowing money from China to buy oil from the Persian Gulf to burn it in ways that destroy the planet. Every bit of that's got to change.
But if we grab hold of that common thread and pull it hard, all of these complex problems begin to unravel and we will find that we're holding the answer to all of them right in our hand. The answer is to end our reliance on carbon-based fuels.
In my search for genuinely effective answers to the climate crisis, I have held a series of "solutions summits" with engineers, scientists, and CEOs. In those discussions, one thing has become abundantly clear: when you connect the dots, it turns out that the real solutions to the climate crisis are the very same measures needed to renew our economy and escape the trap of ever-rising energy prices. Moreover, they are also the very same solutions we need to guarantee our national security without having to go to war in the Persian Gulf.
What if we could use fuels that are not expensive, don't cause pollution and are abundantly available right here at home?
We have such fuels. Scientists have confirmed that enough solar energy falls on the surface of the earth every 40 minutes to meet 100 percent of the entire world's energy needs for a full year. Tapping just a small portion of this solar energy could provide all of the electricity America uses.
And enough wind power blows through the Midwest corridor every day to also meet 100 percent of US electricity demand. Geothermal energy, similarly, is capable of providing enormous supplies of electricity for America.
The quickest, cheapest and best way to start using all this renewable energy is in the production of electricity. In fact, we can start right now using solar power, wind power and geothermal power to make electricity for our homes and businesses.
But to make this exciting potential a reality, and truly solve our nation's problems, we need a new start.
That's why I'm proposing today a strategic initiative designed to free us from the crises that are holding us down and to regain control of our own destiny. It's not the only thing we need to do. But this strategic challenge is the lynchpin of a bold new strategy needed to re-power America.
Today I challenge our nation to commit to producing 100 percent of our electricity from renewable energy and truly clean carbon-free sources within 10 years.
This goal is achievable, affordable and transformative. It represents a challenge to all Americans - in every walk of life: to our political leaders, entrepreneurs, innovators, engineers, and to every citizen.
A few years ago, it would not have been possible to issue such a challenge. But here's what's changed: the sharp cost reductions now beginning to take place in solar, wind, and geothermal power - coupled with the recent dramatic price increases for oil and coal - have radically changed the economics of energy.
When I first went to Congress 32 years ago, I listened to experts testify that if oil ever got to $35 a barrel, then renewable sources of energy would become competitive. Well, today, the price of oil is over $135 per barrel. And sure enough, billions of dollars of new investment are flowing into the development of concentrated solar thermal, photovoltaics, windmills, geothermal plants, and a variety of ingenious new ways to improve our efficiency and conserve presently wasted energy.
And as the demand for renewable energy grows, the costs will continue to fall. Let me give you one revealing example: the price of the specialized silicon used to make solar cells was recently as high as $300 per kilogram. But the newest contracts have prices as low as $50 a kilogram.
You know, the same thing happened with computer chips - also made out of silicon. The price paid for the same performance came down by 50 percent every 18 months - year after year, and that's what's happened for 40 years in a row.
To those who argue that we do not yet have the technology to accomplish these results with renewable energy: I ask them to come with me to meet the entrepreneurs who will drive this revolution. I've seen what they are doing and I have no doubt that we can meet this challenge.
To those who say the costs are still too high: I ask them to consider whether the costs of oil and coal will ever stop increasing if we keep relying on quickly depleting energy sources to feed a rapidly growing demand all around the world. When demand for oil and coal increases, their price goes up. When demand for solar cells increases, the price often comes down.
When we send money to foreign countries to buy nearly 70 percent of the oil we use every day, they build new skyscrapers and we lose jobs. When we spend that money building solar arrays and windmills, we build competitive industries and gain jobs here at home.
Of course there are those who will tell us this can't be done. Some of the voices we hear are the defenders of the status quo - the ones with a vested interest in perpetuating the current system, no matter how high a price the rest of us will have to pay. But even those who reap the profits of the carbon age have to recognize the inevitability of its demise. As one OPEC oil minister observed, "The Stone Age didn't end because of a shortage of stones."
To those who say 10 years is not enough time, I respectfully ask them to consider what the world's scientists are telling us about the risks we face if we don't act in 10 years. The leading experts predict that we have less than 10 years to make dramatic changes in our global warming pollution lest we lose our ability to ever recover from this environmental crisis. When the use of oil and coal goes up, pollution goes up. When the use of solar, wind and geothermal increases, pollution comes down.
To those who say the challenge is not politically viable: I suggest they go before the American people and try to defend the status quo. Then bear witness to the people's appetite for change.
I for one do not believe our country can withstand 10 more years of the status quo. Our families cannot stand 10 more years of gas price increases. Our workers cannot stand 10 more years of job losses and outsourcing of factories. Our economy cannot stand 10 more years of sending $2 billion every 24 hours to foreign countries for oil. And our soldiers and their families cannot take another 10 years of repeated troop deployments to dangerous regions that just happen to have large oil supplies.
What could we do instead for the next 10 years? What should we do during the next 10 years? Some of our greatest accomplishments as a nation have resulted from commitments to reach a goal that fell well beyond the next election: the Marshall Plan, Social Security, the interstate highway system. But a political promise to do something 40 years from now is universally ignored because everyone knows that it's meaningless. Ten years is about the maximum time that we as a nation can hold a steady aim and hit our target.
When President John F. Kennedy challenged our nation to land a man on the moon and bring him back safely in 10 years, many people doubted we could accomplish that goal. But 8 years and 2 months later, Neil Armstrong and Buzz Aldrin walked on the surface of the moon.
To be sure, reaching the goal of 100 percent renewable and truly clean electricity within 10 years will require us to overcome many obstacles. At present, for example, we do not have a unified national grid that is sufficiently advanced to link the areas where the sun shines and the wind blows to the cities in the East and the West that need the electricity. Our national electric grid is critical infrastructure, as vital to the health and security of our economy as our highways and telecommunication networks. Today, our grids are antiquated, fragile, and vulnerable to cascading failure. Power outages and defects in the current grid system cost US businesses more than $120 billion dollars a year. It has to be upgraded anyway.
We could further increase the value and efficiency of a Unified National Grid by helping our struggling auto giants switch to the manufacture of plug-in electric cars. An electric vehicle fleet would sharply reduce the cost of driving a car, reduce pollution, and increase the flexibility of our electricity grid.
At the same time, of course, we need to greatly improve our commitment to efficiency and conservation. That's the best investment we can make.
America's transition to renewable energy sources must also include adequate provisions to assist those Americans who would unfairly face hardship. For example, we must recognize those who have toiled in dangerous conditions to bring us our present energy supply. We should guarantee good jobs in the fresh air and sunshine for any coal miner displaced by impacts on the coal industry. Every single one of them.
Of course, we could and should speed up this transition by insisting that the price of carbon-based energy include the costs of the environmental damage it causes. I have long supported a sharp reduction in payroll taxes with the difference made up in CO2 taxes. We should tax what we burn, not what we earn. This is the single most important policy change we can make.
In order to foster international cooperation, it is also essential that the United States rejoin the global community and lead efforts to secure an international treaty at Copenhagen in December of next year that includes a cap on CO2 emissions and a global partnership that recognizes the necessity of addressing the threats of extreme poverty and disease as part of the world's agenda for solving the climate crisis.
Of course the greatest obstacle to meeting the challenge of 100 percent renewable electricity in 10 years may be the deep dysfunction of our politics and our self-governing system as it exists today. In recent years, our politics has tended toward incremental proposals made up of small policies designed to avoid offending special interests, alternating with occasional baby steps in the right direction. Our democracy has become sclerotic at a time when these crises require boldness.
It is only a truly dysfunctional system that would buy into the perverse logic that the short-term answer to high gasoline prices is drilling for more oil ten years from now.
Am I the only one who finds it strange that our government so often adopts a so-called solution that has absolutely nothing to do with the problem it is supposed to address? When people rightly complain about higher gasoline prices, we propose to give more money to the oil companies and pretend that they're going to bring gasoline prices down. It will do nothing of the sort, and everyone knows it. If we keep going back to the same policies that have never ever worked in the past and have served only to produce the highest gasoline prices in history alongside the greatest oil company profits in history, nobody should be surprised if we get the same result over and over again. But the Congress may be poised to move in that direction anyway because some of them are being stampeded by lobbyists for special interests that know how to make the system work for them instead of the American people.
If you want to know the truth about gasoline prices, here it is: the exploding demand for oil, especially in places like China, is overwhelming the rate of new discoveries by so much that oil prices are almost certain to continue upward over time no matter what the oil companies promise. And politicians cannot bring gasoline prices down in the short term.
However, there actually is one extremely effective way to bring the costs of driving a car way down within a few short years. The way to bring gas prices down is to end our dependence on oil and use the renewable sources that can give us the equivalent of $1 per gallon gasoline.
Many Americans have begun to wonder whether or not we've simply lost our appetite for bold policy solutions. And folks who claim to know how our system works these days have told us we might as well forget about our political system doing anything bold, especially if it is contrary to the wishes of special interests. And I've got to admit, that sure seems to be the way things have been going. But I've begun to hear different voices in this country from people who are not only tired of baby steps and special interest politics, but are hungry for a new, different and bold approach.
We are on the eve of a presidential election. We are in the midst of an international climate treaty process that will conclude its work before the end of the first year of the new president's term. It is a great error to say that the United States must wait for others to join us in this matter. In fact, we must move first, because that is the key to getting others to follow; and because moving first is in our own national interest.
So I ask you to join with me to call on every candidate, at every level, to accept this challenge - for America to be running on 100 percent zero-carbon electricity in 10 years. It's time for us to move beyond empty rhetoric. We need to act now.
This is a generational moment. A moment when we decide our own path and our collective fate. I'm asking you - each of you - to join me and build this future. Please join the WE campaign at wecansolveit.org.We need you. And we need you now. We're committed to changing not just light bulbs, but laws. And laws will only change with leadership.
On July 16, 1969, the United States of America was finally ready to meet President Kennedy's challenge of landing Americans on the moon. I will never forget standing beside my father a few miles from the launch site, waiting for the giant Saturn 5 rocket to lift Apollo 11 into the sky. I was a young man, 21 years old, who had graduated from college a month before and was enlisting in the United States Army three weeks later.
I will never forget the inspiration of those minutes. The power and the vibration of the giant rocket's engines shook my entire body. As I watched the rocket rise, slowly at first and then with great speed, the sound was deafening. We craned our necks to follow its path until we were looking straight up into the air. And then four days later, I watched along with hundreds of millions of others around the world as Neil Armstrong took one small step to the surface of the moon and changed the history of the human race.
We must now lift our nation to reach another goal that will change history. Our entire civilization depends upon us now embarking on a new journey of exploration and discovery. Our success depends on our willingness as a people to undertake this journey and to complete it within 10 years. Once again, we have an opportunity to take a giant leap for humankind.
Charles Babbage--Father of Computing Born December 26, 1791 in Teignmouth, Devonshire UK (See map below) is known as the "Father of Computing" for his contributions to the basic design of the computer through his Analytical machine. His previous Difference Engine was a special purpose device intended for the production of tables.
While he did produce prototypes of portions of the Difference Engine, it was left to Georg and Edvard Schuetz to construct the first working devices to the same design which were successful in limited applications.
Significant Events in His Life 1791: Born; 1810: Entered Trinity College, Cambridge; 1814: graduated Peterhouse; 1817 received MA from Cambridge; 1820: founded the Analytical Society with Herschel and Peacock; 1823: started work on the Difference Engine through funding from the British Government; 1827: published a table of logarithms from 1 to 108000; 1828: appointed to the Lucasian Chair of Mathematics at Cambridge (never presented a lecture); 1831: founded the British Association for the Advancement of Science; 1832: published "Economy of Manufactures and Machinery"; 1833: began work on the Analytical Engine; 1834: founded the Statistical Society of London; 1864: published Passages from the Life of a Philosopher; 1871: Passed Away.
A Silicon Valley museum brings inventor, philosopher and alleged music hater Charles Babbage's computing contraption to life Designed nearly 150 years ago but never actually built until recently, the Difference Engine No. 2 designed by Charles Babbage (1791 to 1871) is a piece of Victorian technology meant to tussle with logarithms and trigonometry long before the first modern computer. Technophiles have a rare opportunity beginning May 10 to see one of these devices (only two exist) on display at the Computer History Museum in Mountain View, Calif.
Babbage's automatic computing engine consists of 8,000 bronze, cast iron and steel parts, weighs five tons, and measures eleven feet (3.4 meters) long and seven feet (2.1 meters) high. Museum guest curator Doron Swade used Babbage's own plans to bring the engine to life.
Babbage is also credited with inventing the cowcatcher, dynamometer, standard railroad gauge and heliograph ophthalmoscope as well as uniform postal rates, occulting lights for lighthouses and Greenwich time signals.
VIVE LA DIFFERENCE Exhibited for the first time in North America, this is one of only two Babbage Difference Engine No. 2 devices ever built.
Charles Babbage's Difference Engine Charles Babbage's Difference Engine No. 2, designed in the late 1840s, weighs five tons, is 11 feet (3.4 meters) long and seven feet (2.1 meters) high, and has 8,000 bronze, cast iron and steel parts. The Computer History Museum's Babbage Engine Exhibit launches on May 10, 2008, in Mountain View, Calif.
Blue Print Babbage's Table of Logarithms of the Natural Numbers, and one of the design drawings from which Doron Swade, director of the Babbage exhibit at the Computer History Museum, masterminded the construction of the Difference Engines at the Science Museum in London.
Carry the 10 Section of the backside of Difference Engine No. 2 showing a portion of the mechanism for carrying tens. Chapter Wheel The engine's "chapter wheel," cranked by hand, calculates polynomial functions to 31 decimal places producing one result for each of the engine's cycles. The chapter wheel shows the subdivisions of the cycle.
IT Figures Part of one of eight columns of figure wheels. There are a total of 248 similar interlocking wheels in Difference Engine No. 2.
Printing Process
The engine's printing apparatus automatically typesets, prints and stereotypes results. Exclusive Collection Exhibited for the first time in North America, this is one of only two Babbage Difference Engine No. 2 devices ever built.
looks like a cow whip, grows up to about two inches (50 millimeters, or as long as a thumb). The most common way to catch whipworm is by ingesting dirt containing human feces that are loaded with its eggs (think: children playing in the dirt and then putting their fingers in their mouths). The whipworm, which sets up shop in the large intestine, is what Despommier says may be "the secret to curing Crohn's disease."
peworm
