The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. Astronomers strive to observe the universe via ever more advanced techniques ...

A single sewing needle is tiny enough to slip through fabric unnoticed, yet physics suggests that if it somehow struck Earth at light speed, the result would look less like a pinprick and more like a ...

The Massachusetts Institute of Technology has released a first-person game that helps showcase science with entertainment. Called A Slower Speed of Light, this visually-stimulating game centers around ...

The Sagnac effect, first observed over a century ago, remains central to our understanding of relativistic kinematics and the operational definitions of simultaneity. Fundamentally, this effect arises ...

A bite-sized computer game exploring the effects of Einstein's special theory of relativity is the first output from the MIT Game Lab made available online. In A Slower Speed of Light, the player ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Astronomers strive to observe the universe via ever more advanced techniques. Whenever researchers invent a new method, unprecedented information is collected and people’s understanding of the cosmos ...

This is a good question, and also a good reminder to be careful with one’s language when writing about physics! Most of the time, if you’re reading an article, what we mean by mass and rest mass is ...