Ask Lemmy

The shortest unit of time in the multiverse is the New York Second, defined as the period of time between the traffic lights turning green and the cab behind you honking.

• Terry Pratchett, Lords and Ladies

The crack of a whip is a sonic boom caused by the tip going supersonic.

Glass cracks propagate at an absurdly fast rate. Something like 4x the speed of sound (1400m/s). Not a physical thing moving, but very common.

Satellites are visible and move at some km per second. Pretty fast

Inside the atmosphere anything faster than some hundreds km/h get so much drag that they either are extremely small (bullets) or extremely powerful (planes, maglev trains)

The air leaving your lungs during a sneeze is moving roughly 100mph.

That manhole cover.

Depends on how you define everyday life, but there are currently trillions of Neutrinos flying through you at almost light speed. I think their mass still hasn't been measured. But it's pretty low.

Not so long ago I would have said electrons in a CRT screen (old school TV). When the electrons leave the accelerating anode, they are traveling at a reasonable fraction of the speed of light

Mantis shrimp punches travel 12 to 23 meters per second (approximately 27 to 51 miles per hour) in water the acceleration involved can reach up to 10,000 Gs.
The peak force generated by a mantis shrimp’s punch can be as high as 1500 Newtons, which is over 2500 times the animal’s own body weight.
The acceleration of their punch is such thay it creates a cavitation bubble which, when it collapses, can generate 8,500 degrees Fahrenheit – nearly as hot as the sun’s surface at 10,000 degrees Fahrenheit.

We named ours Smeagol.

in everyday life?

It depends if you are in Usa or Ukraine, or in a peaceful country.

Not exactly the answer to your question, but cockroaches are pretty fast, considering their size. If they were as big as humans, they could run with speeds over 300kmph.

More info here.

Neutrinos. About 100 trillion go through you every second with about .000001 percent interacting with you. And they have a non zero mass.

When uncorking a champagne bottle, the gasses inside expand so fast that the white mist it can usually be seen is actually frozen CO~2~

Can't find any solid numbers on it, but the micromirrors on a DLP projector are really fast. They rotate 10 degrees or so back and forth something like 1024 times for each color channel for each frame at 60fps.

Hmm how about CRT monitors/televisions? Not that common these days but they are basically little particle accelerators that shoot electrons at a pretty good fraction of the speed of light (like 30%). But I guess that's not really an answer to you question unless you define electrons as objects. I guess my other answer would be airbags which deploy at about 300 kmph

At the equator, everything is moving at over 1000mph.

With mass? In my everyday life? Cars, clearly the winner. I can't think of a more massive object moving at speed that I engage with every day.

Other than that.. Maybe airplanes? I fly once every 1-2 months or so.

There are a handful of peregrine falcon families where I live. They nest around cliffs. They're the single fastest animal so there's that

There are quite a few bullets capable of >4,000 feet per second (or 2,700 mph, or 1,220 m/s or 4,390 kph).

You could call them an everyday occurrence if you live in the US

All every day objects but photons have mass. Maybe also neutrinos.