science
Scientists Build Scales That Can Weigh a Single Proton

How do you weigh an atom? To be honest, that's a question with plenty of problems which need answering, but one thing's certain: you need some accurate scales. Now, scientists have made a set that can measure the smallest unit of mass, the yoctogram—which is less than the mass of a single proton. Read More >>

science
The Petite Particle Accelerator: A Proton Gun For Killing Tumours

Since 1990, doctors have been regularly treating cancer patients using proton beams, which work similarly to radiation. Proton therapy is more precise, however, causing less harm to healthy surrounding tissues. Unfortunately, generating a proton beam requires a particle-accelerator facility that's the size of an airplane hangar and costs more than £60 million to build. Thus, proton-beam therapy remains a rarity, with only 37 working facilities worldwide. Just 10,000 people were treated last year, less than 5 percent of suitable patients. Read More >>