Quarks are the reason protons have a positive charge. Each quark has a fraction of an electric charge. A proton has two up quarks and a down quark. Up quarks have a +2/3 charge, and down quarks have a ...

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

For instance, it is now known that in each atom of carbon-12, there is a set number of subatomic particles: six electrons, six protons, and six neutrons. The atom's nucleus and electrons are held ...

April 14, 1932 was a day that transformed subatomic physics forever as a lithium atom was split using a proton beam.

The nucleus of each nitrogen atom contains seven protons and seven neutrons. That is, it does until a collision happens. The incoming neutron hitting the nucleus causes a proton to shoot out of ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

The Wattbike Proton is a studio-style home smart bike ... The other Wattbike option is the ATOM (read our review here), a less bulky but still large stationary bike with smart and adjustable ...

The Proton builds on the Wattbike Atom, a model marketed towards the ardent cyclist and the more appropriate option for keen road cyclists. I’m a bit taken aback by the simplicity of the Proton.

Upgrades to the Wattbike Atom’s design as well as the Wattbike Hub will make the exercise bike more appealing to cyclists of all levels.