This video captures a freight train engaging its emergency brake (about 2m in) and grinding slowly to a stop. Momentum is everything… until it's nothing.
A freight train's emergency brake is applied at 40 MPH. How long does it take to stop?
- COMMENTS
- physics
- trains
Scientists generate electricity from shadows
In most approaches to convert light into electricity, shadows are a bummer. Now though, researchers from the National University of Singapore (NUS) devised a shadow-effect energy generator (SEG) that scavenges… READ THE REST
See-thru rockets are GO for launch!
If you're as ancient as I am, you might remember that awesome line of Revell "Visible" model kits: The Visible Man, Visible Woman, Visible V-8, Visible Mustang, etc. These see-thru… READ THE REST
How to improve your fried rice using physics
Apparently a high percentage of chefs at Chinese restaurants suffer shoulder plane from wok tossing. They must rapidly move the heavy pan to launch the food into the air so… READ THE REST
Short Post, just one paragraph
Dessert cheesecake wafer bear claw fruitcake. Fruitcake chupa chups donut candy canes marzipan. Apple pie sweet roll tart chocolate cake macaroon marshmallow carrot cake gummi bears sweet. Pastry sugar plum… READ THE REST
Save 50% on a 1-year subscription to Dashlane's premium password manager
We all know vital information about ourselves and our private digital accounts can be compromised by cybercriminals. However, many would be frightened to know just how compromised they and their… READ THE REST
The Bite Helper removes the itch of a mosquito bite in seconds
While mosquitoes have certainly earned their title as the deadliest animal on earth, their impact on most of our lives is usually a lot less consequential. But even though they… READ THE REST