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Why do aircraft leave contrails in the sky?
These wispy man-made clouds have fascinated humans for a century, but what actually are they?
Everything You Need to Know About Near Field Communication
NFC is likely to pop up in your next smartphone (or maybe the one after that), and you'll use it for much more than just mobile payments
What exactly is a digital dollar, and how would it work?
Governments globally are thinking about digitizing their currencies. Here’s what that means—and how it could impact you.
A House bill could create an experiment on digital US cash
The introduction of the ECASH Act, along with a recent executive order, shows how the US government is thinking about the future of money.
Mosquitoes prefer dozing over dining when they are sleep-deprived
Sleepy skeeters lagged behind well-rested ones when offered a researcher’s leg to feed on