STEM

music head

Sing What You Mean

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You wrote an explanatory email, you sent a PowerPoint deck, you crafted a white paper, you created an infographic, you made a video, and with all that, people in the meeting still had questions. It’s because you didn’t sing what you meant.

Ahmed Mohamed

Could You Tell a Clock from a Bomb?

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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?