So it's time to buy some new wheels. What hardness should you get? What do the durometer numbers mean? What's a durometer anyway? Don't worry, we got you. All skateboard wheels are made from urethane, ...

I know it's part of getting older, but when my husband was told to go to the ER because a clinical trial EKG had revealed an irregular heartbeat, I was startled almost into one of my own.

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Put a known volume of water into a boiling tube. Add soap solution, one drop at a time, and shake the mixture for 10 seconds. Record the number of drops of soap needed to make a lather. The ...

Scientists from Tomsk Polytechnic University have developed a novel method for producing bulk metal matrix composites. The ...

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Sodium carbonate, Na 2 CO 3, is also known as washing soda. It can soften water that has temporary hardness and it can soften water that has permanent hardness. It is an inexpensive method of ...