The US should gradually adapt to metric: first the combined units like heat & power. Kick out BTU/h for Watts. Display Energy Efficient Ratio's in W/W. Go for Joules, too.
Keep the mile/pound/inch to the last moment. The UK did this too.
Being a father of three (6, 3, 1) I cut the TV cable and removed the aerial. My kids have 10' of VHS tapes which can always be interrupted for dinner. VHS tapes are much better for kids than DVDs, which damage easily. I buy them second hand for $1 a piece.
My kids have their own networked PC at their own height, which is mostly used for games. I can't think of anything they could pull up from the net which I would object to (I will probably soon find out) but the trash on TV is too bad. Now my oldest watches at his friends or his grandparents. He hasn't complained a single time about not having live TV at home.
Mobile phones have no secrets for them and sometimes when they are lost I curse myself for not giving them one. Writing my own mobile number in 1" digits on their arm helps in crowded places.
I have an Imac and several Windoze boxes and would love to run OSX on cheap hardware. Now that Apple uses PC video cards, there is no need for special ASICs. Yes, it can happen.
>No terrestrial options can provide the needed
>minimum of 2 kWe/person or at least 20 terawatts
>globally.
>[..]
>The intensity of each power beam is restricted to
>20%, or less, of the intensity of noontime >sunlight.
OK.
20e12W / 20% of (1000W/m^2) = 20e12/200 = 1e11m^2
Which is 1e5 km^2 or 316km*316km, about the size of a medium country, just for the receivers active area. If the total array has 20% efficiency, this area would be needed on the moon too.
Suppose we can make these solar cells, why not puth them on EARTH? The planet is round and it is noon somewhere anytime. The Sahara would be good location and bringing stuff to the Sahara beats bringing stuff to the moon, right?
Nevada would be nice too.
Slashdot Mirror
The US should gradually adapt to metric: first the combined units like heat & power. Kick out BTU/h for Watts. Display Energy Efficient Ratio's in W/W. Go for Joules, too.
Keep the mile/pound/inch to the last moment. The UK did this too.
Hi Found this one in Mali. Couldn't find any reference on the web. http://local.google.com/local?f=q&hl=en&q=china&ll =18.474725,1.106529&spn=0.149789,0.346069&t=k
Being a father of three (6, 3, 1) I cut the TV cable and removed the aerial. My kids have 10' of VHS tapes which can always be interrupted for dinner. VHS tapes are much better for kids than DVDs, which damage easily. I buy them second hand for $1 a piece. My kids have their own networked PC at their own height, which is mostly used for games. I can't think of anything they could pull up from the net which I would object to (I will probably soon find out) but the trash on TV is too bad. Now my oldest watches at his friends or his grandparents. He hasn't complained a single time about not having live TV at home. Mobile phones have no secrets for them and sometimes when they are lost I curse myself for not giving them one. Writing my own mobile number in 1" digits on their arm helps in crowded places.
Here is more info http://paris.fe.uni-lj.si/pvnet/europv/europv2004/ PPT/10_Jongerden.pdf about how this is manufactured.
I have an Imac and several Windoze boxes and would love to run OSX on cheap hardware. Now that Apple uses PC video cards, there is no need for special ASICs. Yes, it can happen.
Will Steve ever allow it?
>No terrestrial options can provide the needed >minimum of 2 kWe/person or at least 20 terawatts >globally. >[..] >The intensity of each power beam is restricted to >20%, or less, of the intensity of noontime >sunlight. OK. 20e12W / 20% of (1000W /m^2) = 20e12/200 = 1e11m^2
Which is 1e5 km^2 or 316km*316km, about the size of a medium country, just for the receivers active area. If the total array has 20% efficiency, this area would be needed on the moon too.
Suppose we can make these solar cells, why not puth them on EARTH? The planet is round and it is noon somewhere anytime. The Sahara would be good location and bringing stuff to the Sahara beats bringing stuff to the moon, right?
Nevada would be nice too.