IF the velocity would change from 0.7m/s to 0m/s over one second, the acceleration would be 0.7m/s/s. But if the time span over which that velocity change is (much) shorter, the acceleration would be (much) higher.
You don't need to identify the A320 from 15 pixels. Once you see a 15 pixel signature that changes between subsequent frames you point the one extra camera on a movable mount with a 600mm lens on it at it. Now you get a few hundred pixels.
Seeing how the sausage gets made makes you realize ALL the downsides and things you'd rather not have known. That doesn't mean you can think of a way to fix science. Let alone get the required funding to make an actual attempt.
For scale: The LHC has more than 11km diameter and the deepest mine we have built is 4km. Adding vertical distance is much harder than making the diameter of the circular tunnel larger.
And if I go to that website it encourages me to "try it for free" which makes me think I am supposed to pay for it. But ok, let's give it a try. Then I need to enable a bunch of Javascript. Eh, ok. It was recommended on HN, probably not too malicious. And than it complains:
Uh oh... we couldn't load this form.
The following may help you to view this form:
* Are you using an ad blocker? Try whitelisting this page or disabling it
* Browsing in a private or incognito window may prevent this form from loading correctly. Try viewing this page in a normal window.
* If you’re using Firefox Tracking Protection may be enabled. This could prevent this form from loading. Learn how to disable it.
* Try clearing your cache (including cookies).
Ok, close tab. I will keep using other tool for HPC debugging... (Yes, I actually do HPC and I of course have heard of totalview. Last I heard it is also a total pain to install.)
The one idiot that the rest of the world ignored was Georg W. Bush. By electing a second, worse idiot the US has demonstrated to the world that they are no longer a viable long term partner.