First of all, we have to accept that the world’s oceans are so massive, covering such a large portion of the Earth’s surface, that this amount of water does affect the air temperature. Men have long recognized that temperatures above land near the ocean are moderated slightly. Even the air temperature a few miles inland [...]

As with many questions about science, chemistry and climate, the answer to this question depends on who you ask. There are many people who feel that the ideas of carbon-dioxide problems, greenhouse effect and global warming are all voodoo or scientific mumbo jumbo.
Others believe that the increase in carbon dioxide (due to the human [...]

Some of us might be curious about such basic things. Others might dismiss these issues as boring and unimportant. However, there are some solid reasons for limiting the number of people who can occupy an indoor space.
When we see a sign in a large banquet room that says: Maximum occupancy – 300, what process [...]

The answer to this question can be given in mathematical terms, though some people won’t understand these numbers very well. The answer can also be given in the more common terms that indicate the strength of a hurricane. This doesn’t tell us how much energy is released but it does give the general public a [...]

There are differences of opinion on how time and use affect our brains but in a general sense we might be able to improve our brain power with some simple steps. But we’ll probably have to make use of our brains on a consistent basis to see noticeable improvement.
One of the clichés of our [...]

Many of us have heard about foggy London town but people who live in San Francisco know that this great city on the west coast of the United States can also’ be quite foggy and cool, especially in the summer. It’s tempting to think of San Francisco as a unique location and it may just [...]

While we really don’t know exactly what a black hole is or where it leads, the best information available today indicates that even our universe might be inside a black hole that is part of something even larger (maybe even another universe). This type of thinking has led scientists to think about black holes as [...]

The answer to this question might involve becoming a space traveler. Scientists have developed the theory that objects that are pulled into a black hole might move through a tunnel (sometimes called a worm hole) and end their journey in another spot in the universe. The trip would happen very, very quickly.
It is not [...]

The simple answer might be, “Because they have to.” If flowers didn’t have a great aroma they wouldn’t be such a crucial part of the circle of life. Flowers have their great smell because this is what attracts insects and hummingbirds. When small flying animals such as this visit flowers they capture pollen or pick [...]

In an attempt to measure distance in space, scientists have combined two ideas – light and time. A different type of measurement was needed because of the huge distances needed to describe space. This is accomplished by using the distance light can travel in a particular amount of time.
For example, the star closest to [...]