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Graphene Super Paper Is 10x Stronger Than Steel

adubey Re:Rate of degrading? (244 comments)

My understanding is that pure carbon things sublimate into CO2 over time (including diamonds) when exposed to oxygen.

I don't disagree that this might happen, but isn't this usually called oxidation and not sublimation? Sublimation refers to a state change (always C), and oxidation is a chemical reaction (C to CO2). If oxidation happens quickly enough, I heard it is called "burning"...

(ducks)

At any rate, you are partially correct in that diamond oxidation depends on sublimation occurring:

http://acs.omnibooksonline.com/data/papers/2001_6.2.pdf

But you may need to heat it to 350 degrees C for this to happen at a noticeable rate:

http://www.mdu.edu.tw/Chinese/pdf/mdu01c-2-09.pdf

more than 2 years ago
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Next-Gen Processor Unveiled

adubey This is cool! (183 comments)

The link has NO information.

The PDF here: has more information about EDGE.

The basic idea is that CISC/RISC architectures rely on storing intermediate data in registers (or in main memory on old skool CISC). EDGE bypasses registers: the output of one instruction is fed directly to the input of the next. No need to do register allocation while compiling. I'm still reading the PDF, this sounds like a really neat idea, though.

The only question is, will this be so much better than existing ISA's to eventually replace them? -- even if only for specific applications like high-performance computing.

more than 7 years ago

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