Paracetamol works by reducing the amount of prostaglandins. These are produced in response to injury. They sensitise nerve endings and synapses and inform the brain about pain. Paracetamol reducing this is thought to increases pain thresholds. Paracetamol also controls fever by interacting with the brain.
Aspirin and Ibuprofen both have anti-inflammatory properties. Aspirin is different to Ibuprofen as it permanently prohibits COX1 and 2 enzymes - It is not often used to relieve pain any-more, however. Instead aspirin is preferred because of it’s ability to thin the blood and interact with blood platelets (preventing heart attacks and strokes). Aspirin and Ibuprofen could be preferred over paracetamol because in preventing COX1/2 enzymes from breaking down receptive chemicals - it also prevents the production of chemicals that cause symptoms of illness :such as fever or sore throats:
Quantum Locking and ‘levitation’: First off. Look how cool this is. Mind blown? Good.
From the explanations simple enough for me to understand: what is essentially happening is they’ve coated an inert disk (crystal sapphire) with a superconductor (yttrium barium copper oxide). When superconductors get really cold (liquid nitrogen) they can conduct electricity with no loss of energy. Superconductors normally repel magnetic fields and float in a wobbly fashion. But here, the disk is thin and therefore has tiny imperfections that let the magnetic field through - these are magnetic channels are called ‘flux tubes’. This causes the magnetic field to be stable -or lock- in all 3 dimensions: holding the disk in place.