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What earlier invention led to invention of light bulb?

The vacuum pump was the critical precursor to the invention of the hot-filament light bulb. Indeed, improvements in vacuum pumps have continuously resulted in improvements in incandescent light bulbs. And of course, such things as metal working, glass working etc.


What was created by the expansion of Britain's empire a loss of educational values a loss of material wealth an increase in scientific progress an increase in responsibilities?

The expansion of Britain's empire resulted in an increase in scientific progress and an increase in responsibilities as the empire grew. However, it did not necessarily lead to a loss of educational values or material wealth overall.


How often did leeching work not work?

Leeching treatment was not very effective and often failed to provide any real medical benefit. The practice was based on outdated and incorrect theories of bodily humors and had no scientific basis for its supposed healing properties. In many cases, leeching resulted in harm to the patient due to blood loss or infection.


Why was Albert Einstein famous for the atomic bomb?

Albert Einstein was not directly connected with the development of the atomic bomb. He was a very famous scientist whose name would get the attention of even the highest government officials. He used that fame to ensure that a letter from Fermi about the possibility of an atomic bomb would reach President Roosevelt and would be viewed as a credible letter. This eventually resulted in the creation of the Manhattan Project to develop an atomic bomb. Aside from that initial introductory letter, Einstein had no connection with the Manhattan Project.


What are examples of applications that have resulted from work done by physicists?

Physics plays a key role in reshaping the lifestyle of a modern man. Following are some examples of applications that have resulted from the work done by Physicist. 1.Sattelite communications has shrink-ed the world to a mere room. Today one can watch any event occurring in any part of the world. 2.With the invention of Jet-engines today man can travel faster than the speed of sound. He has landed on moon and dived deeper into the ocean bed. 3. With the help of a microscope and telescope he can observe the motion of tiny particles of matter like Protons, electrons and neutron and can look for the edge of the Galaxy. 4. Physicist led the man to use energy hidden in coal, petroleum & atomic nuclei. 5. Electricity has made it possible to use Radio, TV, wireless, Telephones, Computers and other automatic machines. 6. The invention of heat engine led man to run vehicles on roads and fly in air. 7. Laser therapy, Ultrasounds, X-Rays Computer Tomography & Magnetic resonance imaging has led the man to see inside the others without piercing.