Why does electricity make noise?
Discover the electrifying reason why AC/DC isn't just a legendary rock band.
Why can't robots check the "I'm not a robot" checkbox?
Robots absolutely can check a box on command. But that checkbox is tracking way more information than a simple checkbox click to determine whether you're a human or a robot.
How do court reporters type so fast?
Stenographers can type at an 360 words per minute, with an accuracy rate of 99.8%.
Do elevator โClose Doorโ buttons really work?
It depends. If you're in the United States, probably not. If you're outside the U.S., probably so.
How do gas pumps know when to stop pumping?
I hope youโre feeling pumped for some physics!
Why are skyscrapers made of glass?
Two important innovations allow us to scrape the sky with these glassy giants.
How does Bluetooth work?
Bluetooth allows for the transferring of data between two devices over a short distance via ultra high frequency radio waves.
What is the difference between 4WD and AWD?
Whatโs the same? Well, both types will always have four wheels.
How should you charge your devices to maximize battery life?
Donโt overheat, try to keep it between 20-80%, and avoid knockoff chargers.
How does the power grid work?
And no, you donโt need to be an electrical engineer to get the gist.
How does dry cleaning work?
The first thing you should know is that dry cleaning is not dry.
What do our recyclables become?
Cans, bottles, cardboard and more: Learn about your trashโs next life.