How fast does a free falling object fall?

How fast does a free falling object fall?

Objects move because a force is acting on them, either pushing or pulling. They fall because the force of gravity pulls them towards the Earth. Forces tend to make objects accelerate, and gravity is no exception. The speed of a free-falling object, however, will depend on several factors.  A tennis-ball dropped over … Read more

What is chloroform? Why does it send a person to sleep?

What is chloroform

You might have commonly heard the word “chloroform” associated with people fainting or police investigations. In cinemas, we sometimes see an unfortunate victim forced to smell a cloth moistened by chloroform, leading the victim to fall unconscious suddenly. So, is it advisable to avoid smelling or touching chloroform? Is there any truth … Read more

How does India-rubber and ink-eraser erase pencil and ink marks?

How does India rubber and ink eraser erase pencil and ink marks?

Erasers have been making our lives easier for a very long time now. As the saying goes, once done, cannot be undone. But, fortunately, with erasers, we can not only redo it once but, in fact, multiple times. For different types of marks and stains, erasers of different materials are used, with … Read more

Do things weigh heavier or lighter when hot or cold?

Do things weight heavier or lighter when hot or cold?

The short answer is that yes, an item does in fact weigh more when it is heated. Will you ever be able to actually tell if such is the case? No. The change in weight is so infinitesimal that detecting it with just our five senses is impossible. How then, do we … Read more

Why some diseases are infectious while others are not?

Why some diseases are infectious while others are not

A disease is any condition or illness that deters the body from functioning the way it usually should. Not all diseases are similar, though. That is why various types of medical specialists handle every kind of disease. But, one of the general classifications of illnesses is whether they are infectious or non-infectious. … Read more

Why does yeast make bread rise and bubble?

Why does yeast make bread rise and bubble

The smell of earthy bread and its crusty sliced end with a thick slab of butter with a piping hot cup of brewed coffee with surely make your mornings beautiful. Whether it’s a muffin or a bun, a nicely baked bread is manna from heaven, no matter what time of the day. … Read more

Why walking on ice is difficult? Why is ice slippery?

Why walking on ice is difficult Why is ice slippery

Winter starts, and the air begins to get chilly, making it perfect to veg on the couch, eat a warm meal, and binge-watch on your favorite TV series. However, if you badly need to go out despite the cozy weather, devote extra caution as streets begin to icy. Thus, making you prone … Read more