The second law of thermodynamics demands that if we want to make a clock more precise – thereby reducing the disorder, or entropy, in the system – we must add energy to it. Any increase in energy, ...

The Trump administration said its strikes were intended to prevent Iran from developing a nuclear weapon. Now, Iran weighs a response against what it called an "outrageous" military operation.

Find the latest stock market news from every corner of the globe at Reuters.com, your online source for breaking international market and finance news ...

The weatherproof ST400C Sonic Tracer is an ultrasonic sensor that can be used to reference string line, curb and gutter or the previous pass as a grade control reference. Used as part of an ...