Whereas physics can present us superb issues about our universe, it doesn’t all the time agree with how we predict issues ought to work. Generally, physics may be very counter-intuitive, and infrequently unsettling. So, right here’s my record of physics info that may be a bit unnerving.
10: Weight doesn’t matter
If it wasn’t for air resistance, the whole lot would fall at precisely the identical charge. Should you let go of a hammer and a feather
from the identical peak
on the identical time on the Moon, they might hit the bottom concurrently.
9: Gyroscopic precession
It doesn’t matter how a lot you recognize about physics; gyroscopes are bizarre. The best way they appear to defy gravity makes you rethink the whole lot you recognize about physics, regardless of being pretty easy toys. Nonetheless, it’s all simply Newton’s legal guidelines of movement.
8: Neutrinos and darkish matter
We prefer to assume that we will work together with many of the world round us, however this couldn’t be farther from the reality. Neutrinos and darkish matter are passing via your physique proper now, as if you happen to weren’t even there. The truth that 65 billion neutrinos cross via every sq. centimeter of your physique each second is bizarre sufficient, who is aware of what we’ll find out about darkish matter.
7: Photons are particles
Gentle travels like a wave, however can solely work together like a particle. It could actually intrude and have a frequency, however it could actually solely take and provides vitality in discrete portions. It behaves like nothing else in our macroscopic world, and may be very troublesome to think about.
6: Electrons are waves
We’ve established how photons act like waves and particles, however absolutely huge particles act usually. Nope! Even electrons have wave-like properties. Actually, the whole lot acts like a wave! Besides these waves are available discrete portions, which we’ll name particles. This gained’t get complicated.
5: E=mc^2
Einstein’s most well-known contribution to physics
states that matter is solely one other type of vitality, which has very
profound penalties. A wound-up Jack-in-a-box would weigh ever so
barely greater than a launched Jack-in-a-box, as a result of potential vitality
saved inside.
4: Time is relative
The core of particular relativity states that point passes otherwise for various observers. Should you took a visit to Alpha Centauri at 99% the pace of sunshine, everybody on Earth would see the journey take 4.4 years, whilst you would solely expertise 7.5 months. Time journey is actual!
3: The (not so empty) vacuum
One thing may be created from nothing, so long as it goes proper again to being nothing rapidly. In seemingly empty area, particles pop out and in of existence on a regular basis on account of the uncertainty precept. To not point out, area is inflating at an accelerated charge because of “darkish vitality”. To the vacuum, the regulation of conservation of vitality is extra of a suggestion.
2: c is the quickest pace
One other vital level in particular relativity is that nothing might ever go quicker than gentle. This doesn’t sit properly with lots of people, however the math doesn’t lie. To even get one thing with mass to journey at the pace of sunshine would require infinite vitality. Even if you happen to by some means get round this, there are simply too many mathematical issues with superluminal journey. Prefer it or not, the universe has a pace restrict.
1: The cat is lifeless and alive
How might it not be this? The character of quantum mechanics permits for objects to tackle two seemingly contradictory states in a ‘superposition’. An electron may be in two locations without delay, or in a extra excessive instance, a cat may be each lifeless and alive. In fact, this bizarre property goes away as soon as somebody makes an remark. It’s as if there are tiny physics trolls messing with nature every time we’re not trying.
In fact, there’s lots extra unsettling physics info, just like the space-bending nature of normal relativity, or the “spooky motion at a distance” that’s quantum entanglement, however these are my high 10. I’d like to listen to any unsettling physics info you assume I’ve missed, although!
