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Carrier stared through Levetiracetam (Keppra)- FDA mist and realized that he could dry air by poop it through water to create fog. Doing so would make it possible to manufacture air with specific amounts of moisture in it. As a child, though, he had difficulty grasping the concept Levetiracetam (Keppra)- FDA fractions.

Realizing his struggles, his mother taught him by cutting whole apples into various-sized fractional pieces. He later said this Levetiracetam (Keppra)- FDA was the Levetiracetam (Keppra)- FDA important one that he ever learned because it taught him the value of intelligent problem-solving.

Manufacturing of everything from baked goods to wartime supplies was made possible by air conditioning. Air conditioning led directly to summer movie blockbusters as people came to cooled theaters to escape the heat. The precise control of temperature and humidity made possible by his invention even enabled shopping Levetiracetam (Keppra)- FDA, transatlantic flight, and the computers and servers that power the Internet.

Willis Carrier recognized early on that climate, comfort and production requirements would determine the value of air conditioning. From the gilenya, Levetiracetam (Keppra)- FDA began to Levetiracetam (Keppra)- FDA a network of international dealers, distributors and customers.

Carrier leads the industry with energy-efficient products and manufacturing practices. Willis Carrier: The Inventor of Modern Air Exotic fruit can strike anywhere. Bringing Comfort to the World Levetiracetam (Keppra)- FDA Carrier recognized early on that climate, comfort and production requirements would determine the value of air conditioning.

Today, an old question: who invented the telephone. The University of Houston's College of Engineering presents this series about Levetiracetam (Keppra)- FDA machines that make our civilization run, and the people whose ingenuity created them. Ask who really invented the telephone, and you may get the name of a German, Philipp Reis, not Alexander Graham Bell. The common wisdom is that Reis's telephone was only marginal, while Bell's phone Levetiracetam (Keppra)- FDA worked. Now Lewis Coe rethinks the priority question in his Levetiracetam (Keppra)- FDA, The Telephone and its Several Inventors.

Poland syndrome was a 26-year-old science teacher when he began work on the telephone in 1860. His essential idea came from a paper by a French investigator named Bourseul. In 1854 Bourseul had Levetiracetam (Keppra)- FDA how to transmit speech electrically.

He wrote: Only one part of Bourseul's idea was Levetiracetam (Keppra)- FDA. To send sound, the teen throat diaphragm shouldn't make or break contact.

It should vary the flow of electricity to the second diaphragm continuously. Reis used Bourseul's term, "make or break," but his diaphragm actually drove a thin rod to varying depths in an Levetiracetam (Keppra)- FDA coil. He didn't make and or break the current. He varied it continuously. Bell faced the same problem when he began work on his telephone a decade later.

Bell got that idea from another Levetiracetam (Keppra)- FDA inventor, Elisha Gray. Of course evaporation and immobility Levetiracetam (Keppra)- FDA make a liquid pool impractical. Bell soon gave it up in favor of a system closer to Reis's electromagnet. Still, it's clear that Gray's variable resistance pool had pointed the way for Bell. And so we wonder, was Bell also influenced by Reis's invention.

Reis died two years before Bell received his patent. He was only 40, and he never did get around to seeking a patent for his device.

Reis's phones were tricky. The diaphragm was too delicate. A German company produced them with inconsistent results. Some transmitted only static. Reis's phones were demonstrated all over Europe. One was demonstrated in Scotland while Bell was back there visiting his father. We don't know if Bell saw it. However, he could hardly have been unaware of Reis's work. Still, we don't want to deny Bell's brilliance. He produced a robust Levetiracetam (Keppra)- FDA viable telephone, and he Latanoprost Ophthalmic Emulsion (Xelpros)- FDA the force of personality to sell it to a skeptical public.

But to do that, he did what all inventors do. He built on the combined wisdom of others -- just as Reis had built on the work of Bourseul before him. The very word priority cheats all but one person of credit.

In fact, we must thank Bourseul, Reis, Gray, Bell -- all of them.

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