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my eight year old nephew asked me and i am stumped, Any ideas? please

2007-05-05 12:25:47 · 21 answers · asked by helpiamtrapped 1 in Science & Mathematics Engineering

21 answers

The other posters have some good answers. I'll share one I saw the other day for the first time - Pneumatic Gym Equipment.

One each handle of the machine, there is a yellow button. One button increases resistance, the other lowers it. And, it all works on air. You can raise or lower the resistance while you are working out without stopping to move the pin to adjust the weight. Pretty cool!

2007-05-05 12:34:58 · answer #1 · answered by 2007_Shelby_GT500 7 · 1 0

Pneu means air as in PNEUMONIA
( I have assumed by pnuematic drill you mean a road drill or jack hammer in which the air, noisily pushes the drilll bit up and down.)



It is used in all sorts of applications
Here are some that might be familiar to and eight year old :
Dentists drill .......... the air drives an air motor AROUND like and electric motor - not up and down like a road drill :)
This type of drill/ grinder is used in factories to make plastic moulding tools .. for toys!

At the tyre replacement shop:
Air wrenches to take the nuts of the car wheels
The machine that levers the tyre off the wheel rim

At home :
Pump up sprayers for gardening or fence painting ... also you see men on the Motorway verges sprying weedkiller from a back pack

On the road:

Air brakes on lorries ... you can see the air cylinders on the side of the lorry that HOLDS the compressed air and , from behind on the axles, you can see the big canisters that are the actuators
Some times, at the traffic lights you can see the levers move as the lorry takes his brakes off . and HEAR the air escape .. see below
An interesting point here is the air is used to keep the brakes OFF not on .
Inside the saucepan shaped cans on the axles are big strong springs and a big rubber disk -piston.
The compressed are forces the piston down on the spring and holds the brakes off
When the driver puts his foot ON the brake you here the hissing sound of the air escaping from the cylinders and the SPRING puts the brake on

The reason for this is it is FAIL safe - if the air system breakes the the springs will automatically apply the brakes


In car repair shops nearly all the tools , paint sprayers, nibblers, cutters , polishers, grinders are air operated ... pneumatic


In mines , where there is a risk of explosion or fire, the tools are air operated
The fire service and army use air bags to lift heavy objects - air jacks

Make your own robot arm by connecting two bycycle pumps ( or a bicycle pump and a foot pump/ garden sprayer) together in opposite directions so that as you pump one it pushes the other out.

2007-05-05 21:23:49 · answer #2 · answered by SPARKFISH 4 · 1 0

Examples of pneumatic tools:

Pneumatic drill (jackhammer) used by road workers
Pneumatic switches
Pneumatic actuators
Air compressors
Vacuum pumps
Barostat systems used in Neurogastroenterology and for researching
electricity

Cable Jetting - a way to install cables in ducts
Pneumatic mail systems
Air brakes on buses, trains and trucks

2007-05-05 12:30:47 · answer #3 · answered by Polo 7 · 1 0

If you are asking about pneumatic tools. You only need to look as far as an auto shop for many more.
Hera are few more air operated tools

Drill
Impact Wrench
Ratchet
Air hammer/Chisle
Paint Sprayer
Die Grinder
Spark Plug Cleaner (mini sand blaster)
Sand Blaster
Saw
Rasp
Sheet metal cutter
Cut Off tool

Carpentry:
Air nailers (framing, finish, roofing)
Air Stapler
Sanders (rotary and orbital)

2007-05-05 15:34:20 · answer #4 · answered by MarkG 7 · 0 0

Loosely translated "pneumatic" means using air.

In my trade I use air powered tools to remove wheels, change tyres and of course, inflating them.

You can get a selection of drills, ratchets etc which are all pneumatic.

Using these tools every day all day is much easier than hand tools, and safer than electrical ones. However the consequenses of incorrect or inappropriate use of air tools can still be fatal so they must be treated with respect

2007-05-05 12:45:48 · answer #5 · answered by dadseimaj 4 · 1 0

Pneumatics (from the Greek πνευματικός pneumatikos, coming from the wind) is the use of pressurized gas to do work in science and technology.

Pneumatics was first documented by Hero of Alexandria in 60 A.D., though the subject had been known before then.

Pneumatic switches
Pneumatic actuators
Air compressors
Vacuum pumps
Barostat systems used in Neurogastroenterology and for researching
Pneumatic tubes/tyres
Cable Jetting - a way to install cables in ducts
Pneumatic mail systems
Air brakes on buses, trains and trucks

Common industrial pneumatic components include:

pneumatic direct operated solenoid valve
pneumatic pilot operated solenoid valve
pneumatic external piloted solenoid valve
pneumatic manual valve
pneumatic valve with air pilot actuator
pneumatic filter
pneumatic pressure regulator
pneumatic lubricator
pneumatic pressure switch
pneumatic manual OSHA-type lock out and dump valve
pneumatic solenoid dump valve
pneumatic pressure vessel
pneumatic rodless cylinder
pneumatic gripper
pneumatic rotary actuator
pneumatic fitting
pneumatic flow control
pneumatic quick exhaust valve
pneumatic pressure booster
pneumatic polyurethane tubing
pneumatic quick disconnect
sorteberg relay
pneumatic process controller
control valve

2007-05-05 23:50:56 · answer #6 · answered by Chariotmender 7 · 1 0

One type of pneumatic drill is a jack hammer.
Pneumatic simply means using an air compressor to power the tools.
They can be a drills, grinders, impact wrenches, ratchet wrenches, sprayers, nailers, chisels, saws, sanders, shears, screw drivers, polishers, hammer drills,

2007-05-05 12:57:53 · answer #7 · answered by science teacher 7 · 0 0

A pneumatic device is just an alternative way of providing motion to something. Instead of an electric motor an air motor is used to provide rotation. A piston can also be used to provide linear (in/out) motion.

2007-05-05 21:21:29 · answer #8 · answered by Anonymous · 0 0

There are also, pneumatic rivet guns, chisels, cutting tools, paint spray guns, hammers, rotary drills, socket drivers,

Quite a lot really. Any tools that can turn or hammer (like road drills) can be air driven.

2007-05-05 12:39:02 · answer #9 · answered by SteveJB 2 · 0 0

As he's an 8 year old, not to get too technical....The tyres of cars and bikes, and balloons are pneumatic as they use air pressure to inflate them.

2007-05-05 12:34:00 · answer #10 · answered by Norrie 7 · 1 0

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