There are two main types of lights that are typically tube shaped:
A television picture tube is a cathode ray tube (CRT), and it is highly evacuated. That said, a CRT is full of nothing. It is highly evacuated, and presents an implosion hazard.
Low pressure inside a cathode ray tube? How about nopressure inside the tube! In a cathode ray tube, the "cathode ray" is an electron beam that is used to paint a "picture" on the phosphor coating on the inside of the tube. (We look at the "picture" from the other side of the glass on which the coating is laid down - the outside.) An electron is a lightweight little dude. It weighs about 1/1836th as much as a single proton, so anything, any gas atoms that are in the flight path of an electron will cause it to scatter. That means we need to pump all the air out of the inside of the tube. After we remove all we can, we fire a "getter" (a chemical coated onto a small area inside the tube) which will bind any remaining gas molecules left inside the tube to complete the evacuation process. No more pesky atoms to get in the path of the electron beam and scatter it all over the place.
NO. Fluorescent lights and LEDs are NOT the same thing, other than the fact that they both produce light. A fluorescent light consists of a glass tube or envelope with a powder [phosphor] coating on the inside of the glass which when "excited" by electrical energy created by current running through a gas, also inside the envelope, releases some of that energy in the form of light. An LED on the other hand is a solid state device with no tube, phosphors, or gas. It also converts electrical energy to light but by the interaction of two dissimilar electrically conductive compounds inside of a transparent or translucent plastic body.
a total custom 'hollywood' version of an M-16 carbine variant .223 cal. there is no forearm cover and the gas tube is exposed, also no stock and a real short recoil tube poking out the back - it just doesnt look anything like an M-16 so it confuses people. Pantera arms will probably take the credit.
methyl isocyanate
Helium is no metal, but a gas (at room temperature at least).
Low pressure inside a cathode ray tube? How about nopressure inside the tube! In a cathode ray tube, the "cathode ray" is an electron beam that is used to paint a "picture" on the phosphor coating on the inside of the tube. (We look at the "picture" from the other side of the glass on which the coating is laid down - the outside.) An electron is a lightweight little dude. It weighs about 1/1836th as much as a single proton, so anything, any gas atoms that are in the flight path of an electron will cause it to scatter. That means we need to pump all the air out of the inside of the tube. After we remove all we can, we fire a "getter" (a chemical coated onto a small area inside the tube) which will bind any remaining gas molecules left inside the tube to complete the evacuation process. No more pesky atoms to get in the path of the electron beam and scatter it all over the place.
There is no gas inside it is a vacuum tube.
It contains only just what you placed inside of it.
This is also iodine, as a gas.
This is also iodine, as a gas.
The color from a neon sign is created by the gas being used inside of the tube. the bandwidth is very narrow so only a single color is output from the tube.
In a cathode ray tube, the "cathode ray" is an electron beam that is used to paint a "picture" on the phosphor coating on the inside of the tube. (We look at the "picture" from the other side of the glass on which the coating is laid down - the outside.) An electron is a lightweight little dude. It weighs about 1/1836th as much as a single proton, so anything, any gas atoms that are in the flight path of an electron will cause it to scatter. That means we need to pump all the air out of the inside of the tube. After we remove all we can, we fire a "getter" (a chemical coated onto a small area inside the tube) which will bind any remaining gas molecules left inside the tube to complete the evacuation process. No more pesky atoms to get in the path of the electron beam and scatter it all over the place. Kwao Edward
No. The tube inside a thermometer is vacuum. If there was a gas inside, the pressure changes due to temperature changes would cause the liquid inside to expand/contract unevenly.
i did not get arelavent answer
if an experiment is done in a test tube and hydrogen gas is given off if a lit splint is placed inside the test tube there will be a pop.
The shape and the size of a toy balloons doesn't depend on the kind of gas inside.
Conduction works quite well in the gas inside a fluorescent light tube.