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Turbocharged Starling


docholiday
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Because I'm a science geek I worked out the rotational speed of the starling's head:

 

I guessed the starling's head moved somewhere around 25 mm (0.025 m) in 500/1 s (0.002 s) so using the equation: speed = distance/time

 

we get:

 

Speed = 0.025 m / 0.002 s

Speed = 12.5 ms-1

Speed = 28 mph

 

Amazingly not that fast, despite the amount of blur.

 

God, I'm such a looser.

Edited by FalconFN
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Because I'm a science geek I worked out the rotational speed of the starling's head:

 

I guessed the starling's head moved somewhere around 25 mm (0.025 m) in 500/1 s (0.002 s) so using the equation: speed = distance/time

 

we get:

 

Speed = 0.025 m / 0.002 s

Speed = 12.5 ms-1

Speed = 28 mph

 

Amazingly not that fast, despite the amount of blur.

 

God, I'm such a looser.

 

Not seeing that mate, you don't see a car as a blur when it's moving at 28mph do you? Are you sure you haven't got the decimal in the wrong place and it's 280?

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Not seeing that mate, you don't see a car as a blur when it's moving at 28mph do you? Are you sure you haven't got the decimal in the wrong place and it's 280?

 

You have to take into account the fact that a large car moving 25 mm won't appear to have changed position very much, but a small starling's head moving 25 mm will move (relative to it's origonal position) a large amount.

 

I'll accept that I've guessed the distance the head moved and it could well be double that but certainly not 10 times faster.

 

Anyway, great pictures - as usual. :good:

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Distance/scale is the main factor. Something travelling 28 mph 500 yards away gives the camera far more time to capture the image, try to capture something doing 28mph under your feet, very difficult. I'm not so sure that the calculation of 28mph is correct anyway.

 

How can you possibly "guess the starlings head moved 25mm in 500/1's" :lol:

 

Well you can guess, but that is about all you can do.

 

Great pictures though, no matter what speed that stinkers head is travelling at!

Edited by straightbarrel
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How can you possibly "guess the starlings head moved 25mm in 500/1's" :lol:

 

Well you can guess, but that is about all you can do.

It is a bit of a guess but the OP says 1/500th sec and the distance is a generous guess, it's probably less than that, you can tell by looking at the length of the blured spots on it's head and the beak blur.

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Because I'm a science geek I worked out the rotational speed of the starling's head:

 

I guessed the starling's head moved somewhere around 25 mm (0.025 m) in 500/1 s (0.002 s) so using the equation: speed = distance/time

 

we get:

 

Speed = 0.025 m / 0.002 s

Speed = 12.5 ms-1

Speed = 28 mph

 

Amazingly not that fast, despite the amount of blur.

 

God, I'm such a looser.

 

i would have thought that as its head is rotating and not moving in a straight line you would have to use the equation for angular velocity w= (v)sinθ/r :hmm:

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