What is a technological device that does not convert energy from one form to another?

Question

I would like a couple examples.

Answer 1

A technological device that does not convert energy as its primary purpose? Or that does not convert energy at all?

That does not convert energy at all: none.

That does not convert energy as its primary purpose:

Anything that you can call a "machine" converts energy, so machines of every form and fashion are out. This leaves us with "tools" and the like.

Glasses. Pencils. Hammers. Mirrors. Etc. Those are technological devices that do not convert energy as their primary function.

Answer 2

Technological Device

Answer 3

Many technological devices used for measurement do not convert energy at all. A balance merely equates two forces in a way that lets you read a scale. A bubble level uses the bubble to show you which way gravity is pointing. A prism or a diffraction grating spreads light out so you can see what frequencies are present. Telescopes and microscopes manipulate light so that the images are easier to interpret, but they do not change the form of the energy.
Information manipulation as done in the modern world does not so much involve changing the form of energy as switching it on and off. All of the information manipulation in a computer involves only switching electricity on and off, conversion to a different form is done only to store the info or present it to us.
Man-made chemicals are technological devices used for their material properties, such as strength, wetting ability, filtration capability, or ability to withstand weathering, that don't necessarily involve energy conversion.

Answer 4

When a wheel, gear, pulley or axle is used to transfer energy from one area to another, usually so that other machine can perform an energy conversion to do WORK. The same energy produced on the wheel (gear, pulleys, and axles are just modified wheels) is transmitted via one machine to another machine.

The internal combustion engine is a machine made up of many smaller machines, from the screws that hold it together, to the pulleys and axels that serve as fulcrums for its levers. It is designed to be as compact as possible, but the requirements of circulating oil and (in many cases) water requires the machine to be spread out. To get the energy from one set of machines to another the energy has to be carried; or transmitted. Don’t confuse the car’s transmission with the transmission of energy because that is a much more complex group of machines (an automatic transmission uses hydraulic energy to control how the rotational energy is used). In the manual transmission it takes rotational energy from the crankshaft and sends it to gears, which magnify or reduce the energy that is then sent on to the drive shaft. In the differential the rotational energy is taken in and then changed in its direction by 90 degrees, it then sends that energy to the wheels. The crankshaft, transmission, differential and the wheels all use rotational energy. They magnify it or reduce it, and they change its direction, but they don’t change the FORM of that energy.

The car has a crankshaft that takes linear motion and converts it to rotational motion. At one end of the crankshaft is a wheel that acts as a pulley. This pulley powers the engine's water pump, air conditioner pump and the power steering pump. These devices convert energy, but they can't do that until the power is transferred from the crankshaft to these systems. It remains rotational energy until it reaches those units.

In a simple water well the bucket is tied to a rope a wound around a wheel. The person using the well transfers energy from his/her muscles to the crank, which goes to the axel. The crank forces the person to push/pull in a wider circle, but it makes it easier to do that. Then from the crank the rotational energy is transferred to the axel, and then it is transferred to the rope and converted to linear energy, so it can lift the bucket. But, the real benefit of the machine is that it makes it easy to push/pull rotational energy into a smaller movement that can lift a heavy bucket. The crank is a simple machine, a very simple crank shaft.

Electric wires take power from a source or an electrical component and transfer it to another component or system. Your electric can opener takes electrical energy and transforms it to rotational energy, but without the wires it can't work, and the wires don't change the type of force that goes through them.

A spring takes up and down motion and stores it. When you use it as a shock absorber as in a wagon. The spring takes the vertical motion of the bumps in the road and stores it. It then gives up some energy in the dips, in the road, and it absorbs some energy on the high point of the bumps. The energy is stored in a coil, a modified inclined plane, but it returns and absorbs it all in a up and down movement. Of course the wheels in the wagon take rotational energy and converts it to linear energy, but the springs are separate from this. The first wagons didn't that springs. It was only after the invention of steel that springs were made and used on wagons. The idea hadn't occurred to other people until then, or the metals were too weak or too brittle to operate as a spring.

Every complex machine converts energy between from one form to another, but without the power being TRANSFERED between the parts of the machine then it cannot do its work.

One of the simplest machines is the lever. A lever takes up and down motion transmits it through the level and creates up and down motion. If the fulcrum is in the middle of the lever then no work is done, but if the fulcrum is positioned closer to the load then the operator of the lever can lift more weight. The operator uses linear energy to create linear energy. This may be closer to the example you are looking for since the complete machine doesn’t change the type of work it does. But, the only machines we have are levers, wheels, and inclined planes. Every other machine, from the screw to the most complex are made up of combinations of the three simple machines.

Any gearbox takes rotational energy and converts it to a different amount of rotational energy. It either magnifies or reduces the rotational energy. In the case of these machines the work is done to either decrease the rotational energy to increase the speed of the rotational energy, or to increase the rotational energy to increase the strength of the rotational energy. Transmissions and differentials are example of gearboxes, which fundamentally are just a combination of wheels.

Machines all perform work, and usually it requires that work to be transmitted from one part of the machine to another, through simple machines. During this transmission of energy the form of the energy is not changed. Some machines can change the strength and speed of the rotational energy to perform work.

Answer 5

Ummm if it uses batteries or electricity in any way it is converting energy from one for to another. So ummm I'm completely lost.

Answer 6

the "internet" is a pretty spiffy technological device that one could argue doesn't covert energy. some of its components do, but then, what is the internet?

its all in the definition.

Answer 7

No! but you can check on the usate.com