Which laser measure is best? You may remember helping your dad hold a measuring tape when you were younger. You also may remember how he kept yelling at you to hold it straighter, even though it ...

Which laser measure is best? You may remember helping your dad hold a measuring tape when you were younger. You also may remember how he kept yelling at you to hold it straighter, even though it ...

In ancient times when someone needed to make a measurement, they would turn to something close at hand, often literally a hand. A tradition that originated thousands of years ago in Egypt that is ...

I love learning new things to do with a laser pointer. (Usually I just blind people. That gets old.) This cool short video shows you how to measure the width of a human hair. This three-minute video, ...