How do you calculate the number of possible combinations?

There are trillions of possible combinations. When you think about it, there are an infinite number of ways to make a decision. To come up with a reasonable number of possible combinations, you need to consider all of the potential outcomes. You also need to consider how likely it is that any given combination will ... Read more...

How do you attach a hopper to a chest?

There are many ways toattach a hopper to a chest. Some people use a clamp, some use a strap, and some use a band. How do I make a hopper with a specific weight? There are a number of ways to make a hopper with a specific weight. One way is to use a weight ... Read more...

How Thick Is Earths Crust?

The crust of Earth is about 1/4 mile thick. The mantle is about 0.8 mile thick and the upper mantle is about 3.5 miles thick. The lower mantle is only about 1/10th of a mile thick. How Far Can We Drill Into The Earth? The answer depends on a variety of factors, including the distance ... Read more...

Are eyes brown or black?

The color of an eye is determined by the melanin in the cells of the eye. The color of an eye can be brown, black, or a mixture of black and brown. Are people with black eyes more susceptible to diseases or less susceptible? There is no scientific evidence to support or refute the claim ... Read more...