A vacuum tube is an instrument used to control the flow of electrons. The simplest form of this is called the triode and has three elements. An anode, a cathode, and a grid. The flow of electrons is always from anode to cathode the grid can influence the flow of the electrons. Like the light bulb the tube needs to be a vacuum or filled with gas to prevent the metals they are made of from catching on fire and melting.
The first person to discover that a grid could have an electric charge was Lee De Forest.
See also:
Lee De Forest
Edwin Armstrong
David Sarnoff
Venturi tube is used to for flow measurement. It work on the principle of Bernoulli Equation.
Cathode ray tube amusement device happened in 1947.
If you refer to a flurecent tube you need to check the starter if it has one (small round tube in the side of the light), check the fuse box for that light, check the switch for that light and check that the tube youve banged about has not also blown i.e. check in another tube socket if possible
Maybe, but not sure info would be useful. You can use ohmmeter to check that a tube's filament is intact. Broken/burned-out filament is most likely reason for dead tube.
The electrons emitted from cathode hit the glass of the tube, causing it to fluoresce.
It's an electronic component, a predecessor to the transistor. It looks a little like a lightbulb, but with more wires in the capsule.
because theres no gravity
speed of light in a vaccume
Is your brake pedal hard ? If so replace the power brake booster. It sounds like you have a major vaccume leak in the booster when you apply the brakes. Power brakes work off of engine vaccume. If the dieafram is leaking vaccume when you apply the brakes it leans the engine out. ( creates a major vaccume leak ) and engine dies. Hope this helps.
No it does not.
Probably because U have a VACCUME Leak @ the In take Manifold where the Vaccume hose connects That goes 2 the vaccume modulator.butt sometimes it's just a collapsed vaccume hose. Usally it's ok @ an idle butt goes 2 the Windshield when U accelerate.L00k @ the actuater door hoses under the dash if all else is OK.-----Marv
with the help of vaccume cleaner and Brush.
i think that is smoke+metal=vaccume
Vaccume Cleaner
This happened to my hamster once
The power brake booster is leaking vaccume.
Need to check the map senser first and be sure the vaccume hose that hooks to it is not leaking vaccume. Then with engine running unplug the hose from senser and make sure there is vaccume on the hose. You should also check the fuel pressure regerlator by removing the vaccume hose that hooks to it while the engine is running, the engine should speed up if not then replace fuel reg.