Ligth and terrorism.
Posted by Daniel Celano on
1998/
02/10 13:10
I though Ligth did have mass - as it can be bend by gravity and
it has momentum (i.e. the solar wind).
The french resistance were not terrorists. A terrorist uses TERROR as his
main weapon, by attacking soft random targets. I wouldn't call
Army Group West in France either a soft target or one terrorified of the
french resistance.
Daniel
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Ligth and terrorism.
Posted by Ben Dunkley on
1998/
02/10 13:43
On 10 Feb 1998, Daniel Celano wrote:
I though Ligth did have mass - as it can be bend by gravity and
it has momentum (i.e. the solar wind).
Light certainly has got mass... I've seen the effect of it myself. The
experiment is simple: you need a freely rotating vertical rod with very
very low friction, to which you attach four flags at 90 degrees to
eachother. The flags are black on one side, white on the other.
You shine a strong, focussed light source on one of the flags. The rod
will rotate.
Can't remember the exact physics, but the rotation is caused by the mass
of light. (Don't even thing of saying it's heat based... That couldn't
cause rotational energy. Or could it?)
Ben.
*---------------------------------------------*
| IVE SEEN THE FU *---------------------------*
| S T |
| R U |
| UCER STI DNA ER |
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o / X BAD \ / 3
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Pringlespanion said:
Light certainly has got mass...
Doesn't the E=MC^2 thing prove that mass and energy are fairly
interchangable anyway? We certainly know light has ENERGY.
Nick Waterman. Network Consultant / Sysadmin - LEOnet
Beating tomorrow's technology into submission.
nick-sig@ Team *AMIGA*!
The usefulness of a meeting is inversely proportional to its attendance.
On Tuesday, February 10, 1998 1:43 PM, Pringlespanion
[SMTP:benjamin@] wrote:
On 10 Feb 1998, Daniel Celano wrote:
I though Ligth did have mass - as it can be bend by gravity and
it has momentum (i.e. the solar wind).
Light certainly has got mass... I've seen the effect of it myself. The
experiment is simple: you need a freely rotating vertical rod with very
very low friction, to which you attach four flags at 90 degrees to
eachother. The flags are black on one side, white on the other.
You shine a strong, focussed light source on one of the flags. The rod
will rotate.
Can't remember the exact physics, but the rotation is caused by the mass
of light. (Don't even thing of saying it's heat based... That couldn't
cause rotational energy. Or could it?)
It could. It would cause the air in front of the flags to expand and ths push
on the flags.
Gordan
