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?
N-body simulation of the gravitational collapse of Spongebob Squarepants
Pere Rosselló, an astrophysics student at Universidad de La Laguna in Tenerife, Spain, posted an animation depicting the gravitational collapse of Spongebob. "You can see how virial equilibrium is eventually… READ THE REST
Webb space telescope confirms Hubble's view of universe's rate of expansion
The rate the universe is expanding, the Hubble constant, is confirmed by data observed by the Webb space telescope. The NASA/ESA/CSA James Webb Space Telescope has confirmed that the Hubble… READ THE REST
Everything you think you know about the tides is wrong (or, at least that's true for me)
My mind was blown by this simple video from Neil DeGrasse Tyson about the ocean's tides. I thought that the tides were created when the Moon pulled the ocean toward… READ THE REST
Save $169 on a lifetime license to Microsoft Windows 11 Pro and never look back
TL;DR: Revamp your digital world with this incredible lifetime license to Microsoft Windows 11 Pro, with its seamless interface and top-notch security, for only $29.97 (Reg. $199) until 11:59 PM on 1/07.… READ THE REST
Upgrade your tech for the new year with this refurbished iPad Pro, less than half price right now
TL;DR: Save over $350 on a refurbished Apple iPad Pro 10.5" 256GB, plus a free accessories bundle, with this sweet deal on sale for just $315.99 right now. Tech fans, it's time… READ THE REST
Make your rockstar dreams a reality for only $15.97 with this Guitar Lessons Training Bundle
TL;DR: The perfect last-minute holiday gift for an aspiring rocker, the 2024 Guitar Lessons Training Bundle is only $15.97 (Reg. $480) until 11:59 PM on 12/25. It's really never too late to make… READ THE REST
