Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet.

Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or be useful to us in its practical applications.

The older view of the nature of heat was that it is a substance, very fine and imponderable indeed, but indestructible, and unchangeable in quantity, which is an essential fundamental property of all matter.

I then endeavoured to show that it is more especially in the thorough conformity with law which natural phenomena and natural products exhibit, and in the comparative ease with which laws can be stated, that this difference exists.

Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of the action of velocity. The sails are driven by air in motion - by wind.

Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. This is the case, for instance, when we produce fire by striking flint against steel, or when an iron bar is worked for some time by powerful blows of the hammer.

The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased nor diminished.

Now, the external work of man is of the most varied kind as regards the force or ease, the form and rapidity, of the motions used on it, and the kind of work produced.

Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet.

Reason we call that faculty innate in us of discovering laws and applying them with thought.

What appeared to the earlier physicists to be the constant quantity of heat is nothing more than the whole motive power of the motion of heat, which remains constant so long as it is not transformed into other forms of work, or results afresh from them.

You all know how powerful and varied are the effects of which steam engines are capable; with them has really begun the great development of industry which has characterised our century before all others.

A raised weight can produce work, but in doing so it must necessarily sink from its height, and, when it has fallen as deep as it can fall, its gravity remains as before, but it can no longer do work.

A moving body whose motion was not retarded by any resisting force would continue to move to all eternity.

But heat can also be produced by the friction of liquids, in which there could be no question of changes in structure, or of the liberation of latent heat.

Not that I wish by any means to deny, that the mental life of individuals and peoples is also in conformity with law, as is the object of philosophical, philological, historical, moral, and social sciences to establish.

A metaphysical conclusion is either a false conclusion or a concealed experimental conclusion.

But heat can also be produced by the friction of liquids in which there could be no question of changes in structure or of the liberation of latent heat.

I don't blame anybody for using the tax code to their advantage.

Statistics have shown that mortality increases perceptibly in the military during wartime.

I know that I have raised my sons to be big, strong, independent men who love God, themselves and care for others. I have to learn to let them have space and learn without me.

Beginning today treat everyone you meet as if they were going to be dead by midnight. Extend to them all the care kindness and understanding you can muster and do it with no thought of any reward. Your life will never be the same again.

Deep inside us, we know what every family therapist knows: the problems between the parents become the problems within the children.

I love John Irving's stuff. It's that marriage of comedy and tragedy. It's really terrific.

Dare to live the life you have dreamed for yourself. Go forward and make your dreams come true.

You are no better than you should be.

I still believe in the power of government to make lives better, and I believe that if someone is willing to take a stand, other people will follow.

I read for interest and enjoyment, and when I cease to enjoy it I stop.

In gymnastics, the longest routine you do is a minute and a half, and that's pretty tough to get through.

If we just allowed women and men more leeway in our culture and more acceptance, I think they would be able to make better compromises.

There are some mosques with facilities for women; it's usually a back room with a back-door entrance.

To love God with all your heart, soul, mind, and strength is all-consuming and all-encompassing. It is no lukewarm endeavor.

I think sometimes women who are supposed to be strong are also written as mean and vindictive.

I would have a workshop attached to every school, and one hour a day given up to the teaching of simple decorative arts. It would be a golden hour to the children.

Sometimes breakdowns are so important in your life that you come to know your hidden potentials.

Environmental activists in the rough Antarctic seas have launched a new tool in the fight to stop a Japanese operation to kill hundreds of whales: remote-controlled drones.

Second, we're spending a huge amount of money on technology so that everyone can check out laptops and portable phones. We're spending more money to write our existing information into databases or onto CD-ROM.

The moment that you feel that just possibly you are walking down the street naked... that's the moment you may be starting to get it right.

Our families don't always cross the finish line in the span of one generation. But each generation passes on to the next the fruits of their labor.

Cinema should always be in touch with the soil of the country. My films celebrate the heartland of India.

Some things never change - there will be another crisis, and its impact will be felt by the financial markets.

When I was pregnant. I exercised and was healthy, but it was also the first time since I was 14 that I wasn't on a diet.