Awesome stuff you see on the internet
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@taniwharugby said in Awesome stuff you see on the internet:
Wow
Can't figure this out ... relativity physics tells me that as soon as they enter the plane they lose a 150km /hr head wind and should shoot forwards and down at such a velocity they are seriously injured
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@majorrage said in Awesome stuff you see on the internet:
@taniwharugby said in Awesome stuff you see on the internet:
Wow
Can't figure this out ... relativity physics tells me that as soon as they enter the plane they lose a 150km /hr head wind and should shoot forwards and down at such a velocity they are seriously injured
Doesn't this fall under the same principal as when you board a moving ramp at 100KPH (Like KITT in Knight Rider) you won't be doing 100KPH relative to the ramp, only to the road.
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@majorrage said in Awesome stuff you see on the internet:
Can't figure this out ... relativity physics tells me that as soon as they enter the plane they lose a 150km /hr head wind and should shoot forwards and down at such a velocity they are seriously injured
Que? They're doing slightly more than the speed of the plane - the difference is negligible. Once they're inside against the floor they're no longer falling. Their velocity is the plane's.
For what you're suggesting they'd have to double the plane's speed once inside. What provided that impetus?
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Think @MajorRage is referring to the loss of the headwind - so the loss of the aerodynamic drag. I actually don't think there would be that much in one of those suits and the relative velocity is basically zero between the Porter and the blokes . A little removal of air resistance isn't going to shoot them forward too much.
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@snowy said in Awesome stuff you see on the internet:
Think @MajorRage is referring to the loss of the headwind - so the loss of the aerodynamic drag. I actually don't think there would be that much in one of those suits and the relative velocity is basically zero between the Porter and the blokes . A little removal of air resistance isn't going to shoot them forward too much.
The drag is considerable: Think sitting on a bike at that speed. But as soon as they're inside they collapse and become part of the furniture. You need air resistance for the suit to work - there is none when you're moving at the same speed.
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@antipodean There is definitely air resistance - but not like a bike (not really any induced drag on a bike for example) and of course there is none when they are inside as the relative airflow is zero. The point was that they aren't going to shoot forward when 150km head wind is removed. They will accelerate relative to the Porter when inside the door but not dramatically.
We may well be making the same point. Anyway, after 30 years of studying aerodynamics, relative velocity, etc , I can see why it works and was just trying to work out what @MajorRage didn't get.
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I posted this in the interesting reads thread. But I reckon it sounds pretty awesome. Will make a great book and miniseries
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Awesome in a different way
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@snowy said in Awesome stuff you see on the internet:
@antipodean There is definitely air resistance - but not like a bike (not really any induced drag on a bike for example) and of course there is none when they are inside as the relative airflow is zero. The point was that they aren't going to shoot forward when 150km head wind is removed. They will accelerate relative to the Porter when inside the door but not dramatically.
We may well be making the same point. Anyway, after 30 years of studying aerodynamics, relative velocity, etc , I can see why it works and was just trying to work out what @MajorRage didn't get.
Thanks @snowy ... have figured it out now.
Basically the second they get inside they plane, they immediately lose the air resistance, which means they lose the drag and hence the lift. But, and I think this is Newtons first law, because they have no other force pushing them, they won't accelerate either.
Took a bit to get my head around, but follow it now.
Thanks for your response! I had you in mind when I was posting it!
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@stockcar86 said in Awesome stuff you see on the internet:
Awesome in a different way
£500 compensation? For having your nutsack shredded and one cobbler bitten out? Seems fair.
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@taniwharugby Got to admire Comet's tenacity to retake the lead!