Science Quiz | Vacuum Miracle

question:

1. In 1643, The mercury in the container dropped a certain height but did not fall any further, leaving a vacuum in the container. NameX.

2. There is a vacuum or inert gas inside an incandescent bulb, so a chemical reaction called _________ does not occur when the filament is heated to emit light. fill in the blank.

3. The world’s first practical Y consists of a vacuum chamber, a heated cathode and an anode. When alternating current is applied to a circuit, electrons can only flow from the heated electrode to the unheated electrode. Therefore, Y only allows current to flow in one direction. NameY.

4. An important part of quantum field theory describes the vacuum as filled with _______ _________, which are subatomic particles that appear and disappear rapidly. If these particles did not exist, the electron’s naked charge would be infinite. fill in the blank.

5. Although space is mostly empty, it is not a perfect vacuum. Instead, it’s filled with photons (particles of light) and _________, the second most abundant particle in the universe. fill in the blank.

Visual:

Name the two hemispheres at the center of the famous experiment depicted in this 1657 engraving. Once they were locked, air extracted, and sealed, they could not be separated by multiple horses pulling from both sides.

Answer:

1. Evangelista Torricelli

2. Oxidation

3. Diode

4. Virtual particles

5. Neutrinos

Vision: Magdeburg Hemisphere