The Law of Universal Light Stand Gravitational Attraction

The Law of Universal Light Stand Gravitational Attraction states that all light stands weigh 40lbs.

• A 5lb light stand will require 35lbs of ballast or it will blow over.
  
• A 20lb light stand will require 20lbs of ballast or it will blow over.
  
• A 40lb light stand will not blow over and requires no ballast.
  
• 
  

Humorous post , but that last bullet is not true in all circumstances!

The leverage of 10 lbs of lateral force on the top of a 6' stand overcomes 20lb. of downforce on one 18" leg, if my memory of physics is valid...leverage.

williaty wrote in post #18401362
The Law of Universal Light Stand Gravitational Attraction states that all light stands weigh 40lbs.

• A 5lb light stand will require 35lbs of ballast or it will blow over.
  
• A 20lb light stand will require 20lbs of ballast or it will blow over.
  
• A 40lb light stand will not blow over and requires no ballast.
  
• 
  

Inspired by seeing several youtube videos of models chasing after light stands in the process of blowing over. I thought you guys mind find it funny.

Close! But the figure should be 60 lbs - which rules out light-weight stands. And the footprint diameter should exceed 100 cm - which rules out C-stands. (OK, I've taken cover . . )

is it just me? or would videos of models chasing light stands be a more interesting topic?

Left Handed Brisket wrote in post #18401769
is it just me? or would videos of models chasing light stands be a more interesting topic?

This.

Strontium wrote in post #18401812
This.

And that.

150 lbs assistant ... ? :P

Wilt wrote in post #18401447
Humorous post , but that last bullet is not true in all circumstances!

The leverage of 10 lbs of lateral force on the top of a 6' stand overcomes 20lb. of downforce on one 18" leg, if my memory of physics is valid...leverage.

I set a light stand up precisely so that the diameter of the footprint was 36", and the lateral force at precisely 60" above the floor could be measured. I put 10 lb. weight at the end of one of the tripod legs, and measured the lateral force required to cause the leg to lift fully off the ground...4 lbs. 0.25 oz. to lift 10 lbs. (light stand itself weighed 1.4 lbs.)

Wilt wrote in post #18402627
I set a light stand up precisely so that the diameter of the footprint was 36", and the lateral force at precisely 60" above the floor could be measured. I put 10 lb. weight at the end of one of the tripod legs, and measured the lateral force required to cause the leg to lift fully off the ground...4 lbs. 0.25 oz. to lift 10 lbs. (light stand itself weighed 1.4 lbs.)

While the majority of your posts tend to hurt my head I must say, you are very thorough! So thank you!!!!