Why Roller Coaster Loops Are Never Circular

Why Roller Coaster Loops Are Never Circular

Many extreme roller coaster these days have vertical loops. Have you noticed that these loops are never circular? Why is this?

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How Credit Card Numbers Work

How Credit Card Numbers Work

Most of us carry credit cards and ATM cards. These, typically, have sixteen digits on the front. These digits are the unique account number for the card. For obvious reasons, just any sixteen digits will not work, they follow pattern.

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Why Cold Weather Makes Your Water Pipes Burst

Why Cold Weather Makes Your Water Pipes Burst

We’re currently experiencing colder-than-seasonal weather here in Seattle. This is causing a lot of problems with burst water pipes. Here is a picture of a couple of issues suffered by a friend of mine Ian.

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