A homemade digital clock and a homemade bomb might share several component parts. Both devices might include a timing circuit, a display, a power supply, some switches, a radio (WiFi, Bluetooth or RF), a bunch of wires and some kind of housing or case. There are, however, some nontrivial differences. As a rule, homemade digital clocks do not contain detonators or explosives. That said, a time bomb needs a timer, and a homemade digital clock would do that job nicely. So could you tell the difference between the two devices? Could you tell a clock from a bomb?
In the 1770s, America was a relatively low tech, agrarian society. But all that was about to change. So here, for your Independence Day reading pleasure, are the seven hottest tech trends circa 1776.
There is a lot more to check out at the Chicago Public Library than just books and periodicals.
When she’s not building robotic arms to fix satellites in space, Natalie Panek is advocating for women in STEM and travelling the globe, exploring remote destinations with nothing but a stunning backdrop, challenging terrain, and herself.
Looking for a new job? It's much like the scientific method. Here's how.