This device from SwitchBot measures temperature, humidity, carbon dioxide levels and more to keep my home safe during the winter months.

We’re most familiar with sound as vibrations that travel through the atmosphere around us. However, sound can also travel ...

Abstract: In this article, we address the filtering problem of a reentry vehicle (RV) using a passive sensor onboard an aircraft. The passive sensor measures the azimuth and elevation angles of the RV ...

Is someone on your list hard to shop for? We've got a ton of great options for just about anyone. And grab a little something ...