It’s harder to stop something after you’ve started it because whatever activity you’ve engaged in now has momentum going for it. Conversely, it’s harder to start something before you make the ...

You can usually manage sleep inertia at home with a few tweaks to your daily habits. But if it’s disrupting your daily life, a sleep specialist can help. You probably know the feeling all too well — ...

Think about yourself in a car with the engine running but the parking brake engaged. You’re ready to move, but the brake holds you back and literally prevents you from going anywhere. I’ve seen this ...

The case of a pulsating-load testing machine shows how to ballpark qualities that are important for deploying electric motors. Crankshafts in running internal-combustion engines pulsate as well as ...