Is it possible for a lens to act as a convergent lens in one medium and a divergent lens in another?
Yes. A lens makes use of the property that when light travels from a less dense medium (air) into a more dense medium (glass) it bends toward the surface normal. And when it travels from a more dense medium to a less dense medium it is bent away from the surface normal. So if the lens were placed in a more dense medium then itself the typical direction of light bending would be reversed. You should get a complete reversal of the roles played by a convex lens and a concave lens if you made a cavity inside a glass block in the shape of a lens. A concave glass lens in air does not give a real image but a concave cavity in a glass block should give a real image, in the block.
How fast does light travel through oil?
Light travels through oil at a speed that is slower than its speed in a vacuum, but faster than its speed in water. The exact speed depends on the specific type of oil, but it is generally around 2/3 of the speed of light in a vacuum.
What is the purpose or function of the stone soling used in building construction?
soling is done before laying the foundations and to provide better strength to the foundation.
it is done by means of stone aggregate of random sizes between 50mm - 150mm.
How many trips did the Space Shuttle Columbia make?
The space shuttle Columbia completed 27 successful space flights, not including its final flight whereupon it was destroyed in the Earth's atmosphere. It was the only shuttle apart from the Challenger never to dock with the Mir Space Station or the International Space Station.
What materials does a pedestal drill use?
Pedestal drilling machines mostly consist of a steel pillar and cast iron body. They can be used to drill most ferrous and non-ferrous metal, also plastics and fiber based components.
Where can one find images of bridge engineering designs?
One can look for the best images of bridge image designs on sites such as Wikipedia and Blueprints. There you will find just about anything that you will need to know about bridges.
Application of PN junction diode?
Application of Pn junction diode is a very vast topic itself. It is used in almost every electronic circuits.diodes are used to build half wave and full wave rectifiers.they are used to convet AC to DC.
Charge buildup between the plates of a capacitor stops when?
Charge buildup between the plates of a capacitor stops when the current flow through the capacitor goes to zero.
Facility Engineer -Manitenance Interview Quetionarie?
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Who invented liquid lens technology?
Mishobi Realtad and his co-assistant David Todd Poskey
invented in 1976 it was mostly used as a joke for middle aged kids to mess around with, but then the world found a use for it and is now used in every lab in America and maybe even the world.
Number of atom per unit cell in the Bcc crystal structure is?
There are two atoms per unit cell in the Body-Centered Cubic (BCC) crystal structure.
Is it possible to become an engineer if you are good at math but not good at writing papers?
It depend on the kind of engineering course/program you will be taking. Some seek Math and mostly Sciences like Mechanical engineering whiles others require less but at the way round all engineers are required to articulate what they calculate on papers into writing. So I suggest you start doing some writing because it might help you down the road in your career.
Why should you learn robotics?
Well, it all depends on what you are interested in. I take it that you find robotics to be interesting. Well, robots become more and more popular as the years go on, and more people are needed to work with them the more high-tech they get. It is a growing industry, and would be a wise choice to work in. Just make sure that you have excellent math and science skills, and definetally go to college. Good luck!
hello
what is filler metal (electrode) for welding of spring steel like 1.5142, 1.5225, 1.7138?
regards
What is a rotating part of a machine?
Different things in a machine can rotate. In a motor, the rotor will rotate or revolve. We also find shafts, gears, pulleys, cams, flywheels and a number of other parts that spin.
How do you control a helium balloon to travel and stop wherever i want?
You could add a weight to make the balloon float level (that is it doesn't float up and away and doesn't sink to the ground) and then use wind to blow it where you want. Eg by blowing though a straw. You would probably have to do this inside.
How does the Barton evaporation engine work?
I'll give it a go.It is a adiabatic expansion cycle.Adiabatic meaning not lossing or gaining heat.Think of a steam engine, a cyclinder with a sealed piston inside connected to a rod .The rod is connected to a fly wheel.The weight of the fly wheel continues motion after the power stroke.The momentum has driven the piston to the bottom of the cyclinder.This has compressed the air and heated it.Then an atomized water spray is injected.This combination causes the mist to evaporate and expand.As the water vapor expands it now pushes the piston up[power stroke] as the moist air expands it absorbs heat=latent cooling.When the piston is close to the top a oneway valve opens and the gas escapes then the valve closes.Right after it starts back down pushed by the rod connected to the spinning fly wheel,another oneway valve opens in the opposite direction sucking hot air from outside then closes.This air has been preheated by a solar collector, waste heat or any other source.These engines have the advantage of being able to use low grade heat like passive solar.they do need dry air or a dehumidifier to condition the moist air first.For hot humid locations a liquid desiccant would work well.
Who puts a block of steel in a lathe and by grinding cutting to make a machine part?
A turner, machinist or lathe operator.
How does electricity flow through a semi conductor?
that is such a smartical question :) I guess it just does it :)
no explanation is needed ... the power of ZEN my friend..... o.o
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