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“It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small.” – Neil Armstrong (1930-2012)

Fresh Reads from the Science 'o sphere!

Sunday, August 10, 2008

Lightning But Very Slowly

It has come to my attention that Fresh Brainz has served over 100,000 fresh waffles since we opened for business two years ago.

To celebrate with a flash (but not with a bang): here's a video of a lightning strike in super slow-motion...



Based on the informed opinions of some insiders, this video is real and was likely taken using a high-speed camera at about 15,000 frames per second.

You can clearly see many stepped leaders "crawling" around the sky until one of them touches the ground and then...

BOOM!

The bright return stroke is what we usually see as lightning with our naked eyes.

Thus the most powerful phase of the lightning stroke arises from the ground up, rather than from the top down.

And yes, lightning does strike the same place twice, or even multiple times!

Really makes me want to buy one of these toys...


Would you like to know more?

Lightning researchers:
-
Tom Warner
-
Tim Samaras

Videos of other lightning strikes in slow-motion:
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Three strikes
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Striking a tower
-
Searching for ground
-
Twice lucky

Videos of other activities in slow-motion:
-
Things but very slowly (Brainiac)
-
Bullets passing through stuff

2 Comments:

Along said...

Congratulations!
YOU make it!
Well done!
Next target-1,000,000!

Lim Leng Hiong said...

Thanks for your support, along!