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[i2amroy]

Can anyone identify the main woodwind sounding instrument in these two short clips?

Sounds like a string instrument to me. Have a hunch that's a Kokyu, but I'm not even sure. I think it would help to have a longer clip of the instrument part.

Yeah, that would be my guess as well.

[Graknorke]

Does anyone know what the general solution for powering implanted electronics is? I imagine it would be impractical to have to change the battery in a pacemaker or anything else like that.

[Aklyon]

Real implanted electronics or fictional ones?

[Graknorke]

Real implanted electronics or fictional ones?

It wouldn't make much sense to ask about fictional ones, since I could read the work of fiction I was referring to.

Yes I meant real ones. Pacemakers are the only example I can think of right now, but those have to go into a vein very near your heart and I imagine that would be problematic to remove.

[Frumple]

They are problematic to remove, but that's currently exactly what is done, apparently. They use very little power, but a pacemaker means you're probably going to be going under the knife several more times to replace the batteries.

[Yoink]

Eeep. We should be able to, I don't know, power them from a treadmill or something. Would that be a catch-22?

[Bauglir]

You'd think we could at least run wires more surfaceward, but then I imagine there are very good engineering reasons not to do that.

[Graknorke]

Oh, I was thinking wireless charging with microwaves.
Microwaves are great.

[Frumple]

Eeep. We should be able to, I don't know, power them from a treadmill or something. Would that be a catch-22?

Nah, they're apparently looking into power them via vibration... you know, from heartbeats and whatnot. No clue how well that's panning out, but it was what most of the google search results regarding powering pacemakers were about.

[Arx]

We do have pacemakers that are wirelessly powered, as of about a week ago. They work in rabbits, at least. Battery the size of a cellphone battery on the outside of the chest powers the pacemaker with EMR. We'll probably stick with internal batteries for quite a while yet though.

[Lightningfalcon]

If you are given the mass and temperature of a metal that is added to a sample of water of a known mass and temperature, and then given the change in temperature of that water, how do you calculate the specific heat of said metal?

[Draxis]

You find the amount of energy dumped into the water to make that temprature change, which of course was lost by the metal.  Since the tempratures of the metal and water will be equal, you also know the metal's current temprature, and therefore how far it changed.  With the change in energy and the change in temprature, you can find the specific heat directly (think it is change in temprature over change in energy, but it might be the other way.)

[hops]

I don't think there are any way to find out what it use it for unless you know how the program work.

[Lightningfalcon]

You find the amount of energy dumped into the water to make that temprature change, which of course was lost by the metal.  Since the tempratures of the metal and water will be equal, you also know the metal's current temprature, and therefore how far it changed.  With the change in energy and the change in temprature, you can find the specific heat directly (think it is change in temprature over change in energy, but it might be the other way.)

That seems to work.  Now time to finish cramming for exam that is being held in an hour. 

[hops]

Well to be fair you could theoretically see what the memory is used for, but it would be in ASM.