This spoonful of Halloween spirit can be accomplished with the help of even the youngest Pre-K kid and the supplies are inexpensive and easy to find, so the stakes are especially low. Work with your ...

Have you ever wondered how speed guns measure the speed of moving vehicles or how an athlete's sprint speed is recorded? Normally these speed sensors work with radar or laser technology to bounce back ...

kv4p HT is an open-source hardware VHF or UHF radio designed to plug into the USB-C port of an Android smartphone and turn it into a handheld ham radio transceiver. It’s based on an ESP32 wireless ...