Units of speed are always a unit of length per unit of time. Different units of length and time may be chosen depending on the situation. This makes it easier to read the measurements. For example, ...

Learn how to calculate when and where two trains will meet! This video walks you through the process of using relative speed and distance to find the exact point and time of intersection. Perfect for ...

Probably the biggest decision when buying a new TV is what screen size to go for. This shouldn't only be influenced by the size of your TV cabinet, but the size of your room, too – if you end up ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. It is ...

Last month, I closed this column with a script that can return latitude/longitude values for two addresses, with the intent ultimately being to have the script calculate the distance between those two ...