Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion. For example, in order to lift a heavy object, we must do work to overcome ...

In recent weeks, I’ve talked about building arrows that penetrate better. You’ve seen me mention both how having a heavier arrow and selecting the right broadhead can dramatically increase your ...

Why is it so cold in space? In the vast cosmic void, temperatures plunge as low as negative 454 degrees Fahrenheit. Judging only by the blistering summer sun, you’d be forgiven for assuming that space ...

As a consulting mechanical engineer, I assessed more than 400 crash tests for the Australasian New Car Assessment Program from 1996 to 2017. It is always interesting to answer questions like this. The ...

We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you. But what if, on top of that, we ...

Through energy harvesting tiles, backpacks and insoles, there has been much talk about harnessing our kinetic energy to power mobile devices and other electronics. A team of researchers is claiming to ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The human body contains enormous quantities of energy. In fact, the ...

High-energy-density lithium-ion batteries are essential for next-generation electric vehicles and energy storage systems.

It should be clear that our world runs on energy. Driving your car, washing your clothes, heating your house, and even running your computer (so you can read this post)—these things all require energy ...