Kit Roberts
We all know that planes go fast, but often due to them being very far away or us being on them it's not immediately clear just how fast they are.
But now, a video has shown just how quickly a passenger jet actually moves when we're not looking at it from a great distance.
There is actually a name for the effect which makes us feel as though planes are not going so fast, when obviously they are. It's called the Motion Parallax, and is based on how quickly an object moves through our field of vision.
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So a car driving very fast on the motorway with things moving past very quickly appears to be faster than a plane up in the sky, which lingers in our field of vision for much longer. However, this TikTok video bypasses the Motion Parallax and shows just how quick planes really are.
In fact, the Boeing 737 seen in the video, which is a common workhorse airliner, has a cruising speed of an eye-watering 545mph. No wonder in the video it whizzes by so quickly!
What's crazy is that in aeronautical terms, this isn't really that quick. It's fast alright, but there are many many types of aircraft capable of achieving much faster speeds.
The supersonic passenger jet Concorde, for example, had a cruising speed of just over 1340mph, allowing it to make Atlantic crossings in record time.
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However, even this pales in comparison to the fastest air-breathing aircraft ever manufactured. This was the Lockheed Martin SR-71 Blackbird. First designed and built in the 1960s, the SR-71 was intended for use as a reconnaissance aircraft operating at high altitudes.
It's outfitted with stealth technology, but is also so fast it could actually outrun surface to air missiles. Its maximum speed was clocked in at an astonishing 2,200mph.
All these are truly astonishing speeds, but even the relatively snail-like Boeing 737 is still very fast, as one video shows.
Rather than the usual squinting at an aircraft from a great distance away, the video shows an airliner flying past in the clouds, looking like it's just cruising to its destination.
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Given how high up you are when going at the cruising speed, and how the plane hopefully slows down when it comes in to land, the video looks really rather alarming. The jet absolutely shoots past. It almost doesn't look real.
It's bizarre to think we as people can now just hop into a bus that then jets up into the sky and hurtles through the air at over 500mph, powered by dead dinosaurs.
As for how planes actually stay up, there's really on point pretending that anyone actually knows or understands. Engineers say they do but really they're all just winging it.
Sure you can say stuff about thrust and air pressure and lift, but it's still basically just magic.