How Can Astronauts Tell How Fast They’re Going?

Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.

Here’s How to Best Watch the Lyrid Meteor Shower

One of the oldest meteor showers recorded by humans began this week—but don’t worry, there’s still plenty of time left to see ...
Electronic Design

How To Control Brushless Motors (Part 2): Position-Control Loops

While current control and PWM switching play the most direct role in driving brushless DC motors, the motion profile and ...
InfoQ

Platform Engineering: Lessons from the Rise and Fall of eBay Velocity

Randy Shoup discusses the "Velocity Initiative," a transformation that doubled engineering productivity and modernized eBay’s DORA metrics. He shares the technical playbook used to scale 4,500 ...
Tech Xplore

Computational 'time machine' shows solar and wind power on track for 2°C target, but not for 1.5°C

Wind and solar power have grown faster than almost anyone predicted, but projecting their future expansion remains ...

From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics

A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a ...
Cyclingnews

The fastest Paris-Roubaix in history – Wout van Aert and Tadej Pogačar set blistering new highest average speed of 48.91kph, smashing previous record

Franzi Koch's victory in the women's race was also the fastest in its six-year history with a 40.834kph average speed ...