Roll on the 20th June

[TryToBelieve]

you can use normal machines, 2 meters fall at the short end and 10 metres at the extended end. 1,2 kgs on the extension and 10kgs on the short end, that is 12 kilos of lift required for 20 kilos of free falling weight leaving you with 8 kilos of energy
not difficult

Given 10kilos at 2 meters (20ks)- I agree it will lift your 1.2 kilos 10meters(12ks) with (8ks) to spare - I don't doubt that,
but how did you get 10 kilos to 2 meters (20ks) with 1.2 kilos at 10meters (12ks) - you were 8 short to start

Trying hard to understand...

[The Eskimo Quinn]

a ten to one lever with 1.2 kilos on the end falling 10 meters will lift 10 kilos 2 metres on the other end, then when it is knowcked off the end you have 10 kilos free falling prodicing 20 kilos of energy

[TryToBelieve]

I guess as I read your logic, I see that 10:1 with 1.2kilos on the 10m end will lift 10kilos 1.2 m not 2 m 

am I missing something?

[The Eskimo Quinn]

weight ratios have nothing to do with distance ratios, i could put one once on the light end and two ounces on the heavey end and it will still perform full rotation of 2 mtres and 10 metres. where you get 1.2 metrs from is unknown

you will have to ask the other non newtonians  about basic math i don't have the time sorry

[badassdjbynight]

No see.. you're confusing the length of the plank with the height it goes up.  So your plank is 10 meters on one end of the pivot and 2 meters on the other.  You have to use triangle geometry math to calculate the height it would go and it depends on the rotation angle.  Go back to my video.  The height depends on the angle.  Your example of the 2 meter side raising the weight 2 meters would require the lever to go all the way up and down.  (say it's suspended on an axel)  So the long end with the smaller weight on it would have to go down much farther too.  So energy is still conserved.  Work in still equals work out.

Even if you start with the plank (or wheel spoke) all the way up so the 10m end is straight up and the 2m end is straight down with a 10k weight at the end.  The 2k weight that is placed on the top has to move 20m down (albeit taking a rotational path)  in order to move the 10k weight 4m up.  Let's also not forget that the plank/spoke itself has weight - although you could balance it with additional weights.  The point is that work in equals work out.  2k x 20m = 10k x 4m.  Actually in REALITY this would only balance the lever.  You'd have to put slightly MORE than than 2k at the top.