Not AI But Real Answers By Experts!
Condensation is the opposite of evaporation. In evaporation, a liquid changes into a gas or vapor. In condensation, a gas or vapor tums into liquid or solid form. This happens when it is cooled or compressed. There are two important changes that take place when a gas condenses. The first is that the volume of … Read more
“Force” is a push or a pull that changes the motion, or movement, of objects. When you push a chair, you are exerting force on it. When you stop pushing, the chair stops moving. But suppose you roll a ball along the ground. It keeps on rolling after you have stopped pushing it! Why? The … Read more
carbon is important to all forms of life. It makes up less than 1 percent of all matter, but everything that lives or has lived contains this element. The bodies of all living things are made up of compounds containing carbon, and where it is found in any quantity in the earth, life has probably … Read more
The simplest way to describe an optical illusion is that it is a “trick” that our eyes play on us. We seem to see that isn’t really so. Or we may be able to see the same object in two completely different ways. If our eyes are functioning properly, and they as instruments for seeing exactly … Read more
Aluminum is a silvery-white, lustrous metal that is only about one-third as heavy as iron. It can be drawn out into wires that are finer than the finest hairs and hammered into sheets as thin as a sheet of newspaper. It may surprise you to learn that it is the most abundant of all the … Read more
Viruses are very small particles that may cause disease in man, animals, and plants. That word “particles” seems a strange way to describe them, so let’s see why it is used Viruses are so small they will pass through the finest filters. They cannot be grown in sugar solutions but will grow and multiply in … Read more
Most people think a vacuum is a place where there is absolutely no matter, a place that contains absolutely nothing, According to scientists, however, such a thing is impossible. They believe there can be no region where there is not a single bit of any substance, not a molecule of a gas or the tiniest particle … Read more
The first telescope was invented in 1608 by a Dutch optician called Hans Lippershey. Before that, even as far back as the 13th century, scientists had been experimenting with magnifying lenses. Poor Lippershey was refused a patent for his invention, and the famous Italian astronomer, Galileo, hearing about this new idea, built his first telescope … Read more
The tongue is one of the most amazing muscles and organs of the body. It is the only muscle we have that is attached at only one end. So it can move like no other muscle, and this is important for some of the work it has to do. When we speak and produce a … Read more
Well, while surfing Reddit today, I found some cool questions that have been asked and got some awesome replies of those. Some were joking and some were serious about the topic and replied with their thoughts and imaginations. One thread that took all my attention is that – someone posted about the kinds of stuff … Read more