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A comment on Drones With an Eye on the Public Cleared to Fly.

Re:Drones With an Eye on the Public Cleared to Fly by lacamu on Saturday February 18, 2012 @02:58PM (#3607574)
OK, I guess I wouldn't mind having dropped on my head a 4.4 pound drone traveling, hmm, approximately:

sqrt(2gdistance) = Sqrt(232.3(400 feet)) = 160 f.p.s.

with about 160 fps * 4.4lbs = 700 ft-lb of energy

!!! Well, maybe not!

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Re:Drones With an Eye on the Public Cleared to Fly by bwarp on Saturday February 18, 2012 @04:40PM (#3607830)
Please use metric. It's the 21st century now.
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Re:Drones With an Eye on the Public Cleared to Fly by xxpor on Saturday February 18, 2012 @05:08PM (#3607879)
A lot of engineering in the US (especially civil) still uses standard. Believe me, I would prefer metric because it makes calculations 100x easier, but there's a lot of legacy stuff out there.
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Re:Drones With an Eye on the Public Cleared to Fly by tripzilch on Saturday February 18, 2012 @05:20PM (#3607904)
"Standard"? Isn't it called "imperial"?

It's not standard if there's only one industrialized country left in the world that uses it :)

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Re:Drones With an Eye on the Public Cleared to Fly by bwarp on Saturday February 18, 2012 @05:29PM (#3607921)
Indeed. Although here in the UK, I find it frustrating that whilst we use metric for literally everything, we use MPH and miles for distance. It's illogical.

If I utter kilometers to anyone, they look at me funny.

I spent 5 years training myself to unlearn imperial in about 1990.

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Re:Drones With an Eye on the Public Cleared to Fly by tripzilch on Monday February 20, 2012 @02:46PM (#3613592)
UK friend of mine told me he's a big fan of kilometers, "because you got more of them" :-D
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Re:Drones With an Eye on the Public Cleared to Fly by xxpor on Sunday February 19, 2012 @12:29AM (#3608735)
In engineering circles, it's called standard.
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Re:Drones With an Eye on the Public Cleared to Fly by tripzilch on Monday February 20, 2012 @02:48PM (#3613598)
Engineers also write j when they mean i so what do they know, really!
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Re:Drones With an Eye on the Public Cleared to Fly by bwarp on Sunday February 19, 2012 @05:58AM (#3609118)
Not in europe it's not!
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Re:Drones With an Eye on the Public Cleared to Fly by xxpor on Monday February 20, 2012 @01:02AM (#3611483)
And I was talking about the US.
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Re:Drones With an Eye on the Public Cleared to Fly by meatsock on Saturday February 18, 2012 @11:26PM (#3608647)
correction: metric would make calculations 1 hecto-x easier
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Re:Drones With an Eye on the Public Cleared to Fly by lacamu on Sunday February 19, 2012 @02:11AM (#3608847)
Hell, it's the 21st century now, I'll use Google:

"700 foot-pounds = 9.49072564 × 109 ergs"

Somehow I don't think that helps. Are you happy now?

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Re:Drones With an Eye on the Public Cleared to Fly by bwarp on Sunday February 19, 2012 @04:08PM (#3610418)
Yes - thank you :)
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