What is quantum physics? I’m sick of studying it in class. The semester long course I’m taking on it is just an introduction to 2 more that will follow. So why do I write this? My friend is really excited about Physics. He wants others to share the excitement of science. He’s studying Biology. Evolution. Genetics. Physiology. I don’t believe in science. He doesn’t believe in God. Only Einstein’s God, if there were such a thing. He tells me there’s no scientific evidence that God exists. He asks me if I’ll believe in him if he says there’s a fairy in the corner. He says he doesn’t believe in something that cannot be tested by experiment. He thinks he’s smart, not that I’m disagreeing but I’ll come back to this some other day.
So for your convenience. Quantum Physics says, as you probably already (don’t) know, that matter can do everything waves can. Waves (lets just stick to light and sound) can reflect (light/mirror, sound/wall you know echos?), transmit (door/eavesdropping, window/sunshine you know skylights?) and interfere. Matter reflects? Ofcourse. According to Quantum physics matter can reflect and transmit at the same time; because light can do both together, and matter can do everything light can (think some light is reflected of the shiny glass, while some goes through). Wait what?
Yeah, nobody likes theory. Where are my cool gadgets? If two surfaces are very close together there is a probability that electrons will ‘jump’ (tunnel) from one surface to the other. The closer we bring the two surfaces the higher the probability of tunneling. We put this behind a touch screen in your phone and lo and behold 3 dimensional touch screens, sensitive not only to touch but also pressure. Pressing harder will take you into the screen. Tunnel hoa, Tunnel hoa, Width jab chotee hoi tou tunnel hoa.