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Hello, future
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Total posts: [20]
1

Hello, future:

See ALL the stars!
http://www.technologyreview.com/blog/arxiv/26448/ I got totally lost by the actual paper, but the article is enough to see what's going on.

A photon has a small momentum which it can impart to anything it hits, as Arthur Compton and Peter Lebedev discovered at the beginning of the last century. We now know that photons can be used to push anything from electrons to solar sails.

Today, Jun Chen from Fudan University in China and a few pals demonstrate the counterintuitive result that photons can pull things too. In other words, they've worked out how to generate a backward pulling force from a forward propagating beam.
Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
 2 Usht, Tue, 1st Mar '11 1:58:23 PM from an arbitrary view point.
Lv. 3 Genasi Wizard
Hoorah, we're that much closer to moving things with our MINDS.
The thing about making witty signature lines is that it first needs to actually be witty.
 3 Ratix, Tue, 1st Mar '11 8:34:03 PM from Someplace, Maryland
I like how various wild sci-fi concepts actually work perfectly: IF you adjust your sense of perspective.

Wanna travel to the stars? Slow your metabolism and sense of time so a thousand years is like a day, and it doesn't matter what percentage of c you travel, you'll get there in no time.

Want teleportation or (as in this article) tractor beams? If you're working with nanomachines, it's not only possible, but with teleportation (aka Quantum Tunnelling), essential.

PARTY HARD!!!!
DO WANT.

When can we have this thing in hand held form.

It'll make an awesome grabby tool for getting stuff off the fridge.
Where were you when I laid the earth’s foundation? Tell me, if you understand. Who marked off its dimensions? Surely you know! ~ GOD
 5 Tzetze, Tue, 1st Mar '11 9:35:11 PM from a converted church in Venice, Italy
DUMB
^^Was just about to bitch about how the future is here but only on the particle scale. sad
Wh'joo lookin' at?
What is all this technobabble? Where's my jet pack? Where's my flying car?

But seriously, possible development of tractor beams? I'm intrigued.

 7 pagad, Wed, 2nd Mar '11 4:24:10 AM from perfidious Albion Relationship Status: Having tea with Cthulhu
Sneering Imperialist
There must be an alternate universe in which people possess flying cars and jetpacks who continually bitch about how there's no worldwide computer network.
Typhoid and swans - it all comes from the same place.
 8 Usht, Wed, 2nd Mar '11 6:12:33 AM from an arbitrary view point.
Lv. 3 Genasi Wizard
[up][up]

They've already made jetpacks. They just aren't as awesome as you might think. Or you know, useful. As for flying cars, they've managed to get cars off the ground for several minutes at a time but it's too fuel costly right now to be feasible.
The thing about making witty signature lines is that it first needs to actually be witty.
 9 Major Tom, Wed, 2nd Mar '11 6:16:55 AM Relationship Status: Barbecuing
Eye'm the cutest!
When can we start scaling up these effects of quantum tunneling and tractor beams to the perceptible level? Can we simply not generate enough power?
"Allah may guide their bullets, but Jesus helps those who aim down the sights."
life is a game
[up]

No, it's not about the amount of power. Quantum tunneling relies on the inherent uncertainty in the position of subatomic particles, which only happens on a very small scale compared to our everyday existence. At any level that could remotely be called perceptible, a quantum tunneling event is so unlikely as to be for any practical purpose impossible. I don't know how the tractor beam works, but it probably also relies on small-scale effects.
Each night, he abandons the trappings of civilization.
Each morning, he repairs the front door.
 11 Deboss, Wed, 2nd Mar '11 7:33:22 AM from Awesomeville Texas
I see the Awesomeness.
It only works on a small scale guys.
 12 Usht, Wed, 2nd Mar '11 7:36:14 AM from an arbitrary view point.
Lv. 3 Genasi Wizard
Same thing for nuclear explosions. At best, you'd get a slight bump on the graph when setting off only one atom.

Then they eventually used that to make bombs. Same principle applies here, we've just got to figure out how to apply the small case in a large enough manner to make it relevant to our daily lives and to jobs.

edited 2nd Mar '11 7:37:45 AM by Usht

The thing about making witty signature lines is that it first needs to actually be witty.
 13 Deboss, Wed, 2nd Mar '11 8:22:20 AM from Awesomeville Texas
I see the Awesomeness.
You don't set off an atom.
 14 Usht, Wed, 2nd Mar '11 8:23:25 AM from an arbitrary view point.
Lv. 3 Genasi Wizard
Nah, you split it. Which is close enough to setting off an atom for me.
The thing about making witty signature lines is that it first needs to actually be witty.
 15 Deboss, Wed, 2nd Mar '11 8:33:17 AM from Awesomeville Texas
I see the Awesomeness.
You don't split it either.
 16 Drunk Girlfriend, Wed, 2nd Mar '11 8:35:09 AM from Castle Geekhaven
You do something that makes an itty bitty boom. tongue
"I don't know how I do it. I'm like the Mr. Bean of sex." -Drunkscriblerian
 17 Usht, Wed, 2nd Mar '11 8:40:32 AM from an arbitrary view point.
Lv. 3 Genasi Wizard
[up][up]Two things:

1) You're derailing this.

2) Atomic fission. Nukes run on it.

edited 2nd Mar '11 8:40:54 AM by Usht

The thing about making witty signature lines is that it first needs to actually be witty.
 18 Yej, Wed, 2nd Mar '11 9:03:13 AM from <0,1i>
See ALL the stars!
Also, it's true that this only works on the scale of individual atoms/molecules (as do optic tweezers) but guess what machine also does? tongue
Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
 19 Deboss, Wed, 2nd Mar '11 9:12:44 AM from Awesomeville Texas
I see the Awesomeness.
The term is "decay" not split, it's just a very rapid chain reaction, done by getting the material to a high enough density.

It actually says on there that it only works for small scale stuff.
 20 Pykrete, Wed, 2nd Mar '11 10:50:42 AM from Viridian Forest
The system doesn't know you right now, so no post button for you.
You need to Get Known to get one of those.
Total posts: 20
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