"Fire in the hole!" shouts an engineer as a detonator sparks. A second later, the shockwave and the thunder–a close shave with the last sight some people ever saw. The video apparently depicts work on Indianapolis' sewer system.
WATCH: shockwave in a tunnel
Excellent interactive explanation of how mechanical watches work
Bartosz Ciechanowski's animated tour of how a mechanical watch works is the best I've ever seen. Each component, from the spring to the second hand, is explained in plain English with clear, interactive diagrams. It really wound me up! Mechanical watches are not as accurate as digital ones. They require maintenance and are more fragile.… READ THE REST
How steel balls are made
A wealth of surprises lay in store here if you do not already know how balls are made! Raw balls are cut, deburred, ground and polished. Just wait 'til you get to the section on flashing! Dealing with uneven balls is quite the engineering challenge. This edition of the series of programs explaining the technology… READ THE REST
Cybertruck arriving next year (like fully autonomous self-driving and the second coming of Christ)
The New York Times' story about the latest Cybertruck reveal—it's coming in 2023 for real, Tesla promises—is as much about the earlier "inauspicious" promises as it is about the vehicle itself. "We can't wait to build this here," Mr. Musk, wearing a black cowboy hat, said of the truck. "Sorry for the delay. But you're… READ THE REST
Teach yourself how to play guitar with the Jamstik trainer
We thank our sponsor for making this content possible; it is not written by the editorial staff nor does it necessarily reflect its views. Has learning how to play the guitar been on your bucket list? Learning how to play guitar should be simple, fun, and accessible, but with the average guitar costing $600 — lessons not included, you might… READ THE REST
Make room for important and large files with Prism Drive cloud storage
We thank our sponsor for making this content possible; it is not written by the editorial staff nor does it necessarily reflect its views. With most of our daily activities happening online, no one will ever complain about having too much storage space. On the contrary, it's frustrating when you run out of storage or have… READ THE REST
This 13-in-1 media hub brings your favorite content to the big screen
We thank our sponsor for making this content possible; it is not written by the editorial staff nor does it necessarily reflect its views. We're sure our parents had a wild time back in the day without modern media, and to some degree, we wish we could be a little less plugged in. But then we… READ THE REST
