- North High School (North St. Paul, Minnesota) (Wikipedia)
North High School is a public 9-12 high school located in North Saint Paul, Minnesota, United States. It is one of two high schools in the ISD 622 District. The other high school in ISD 622 is Tartan Senior High School in Oakdale, Minnesota.
- Antimatter (Wikipedia)
In modern physics, antimatter is defined as matter composed of the antiparticles (or “partners”) of the corresponding particles in “ordinary” matter, and can be thought of as matter with reversed charge, parity, and time, known as CPT reversal. Antimatter occurs in natural processes like cosmic ray collisions and some types of radioactive decay, but only a tiny fraction of these have successfully been bound together in experiments to form antiatoms. Minuscule numbers of antiparticles can be generated at particle accelerators; however, total artificial production has been only a few nanograms. No macroscopic amount of antimatter has ever been assembled due to the extreme cost and difficulty of production and handling.