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Comment Ghost (Score 1) 253

I wonder if you could configure a boot disk to image the machine onto a NAS, and then wipe it? Do you care about verifying the image?

How configurable is a Symantec Ghost boot disk? Is there a FOSS alternative to Symantec Ghost?

How would you tell the images apart. It's inevitable...Mary will need a copy of her "My Documents" folder from 2 years ago.

Comment Atmel SDK (Score 0) 165

Forget the EEPROM. The concept of programming a ROM seperately from a chip is so 1970's.

Get a programmer that programs chips with on-chip flash.

I'm biased in favor of Atmel's AVR architecture. http://www.avrbeginners.net/ http://www.avrfreaks.net./

You need to decide: will you go with dated (but doable) through-hole technology, or will you go surface mount (SMT) which is more modern, but more difficult to solder. That will impact what kind of programmer you need. Atmel AVRs can be programmed in-curcuit with a cheap dongle.

I don't always design in-circuit programming, debugging, and emulation into my circuits, so I keep a few of Atmel's AVR boards around. The STK500 is awesome: http://www.atmel.com/dyn/products/tools_card.asp?tool_id=2735

$82.16 at Digikey: http://search.digikey.com/us/en/cat/programmers-development-systems/general-embedded-dev-boards-and-kits-mcu-dsp-fpga-cpld/2621773?k=stk500

You can get samples of the AVR Microcontrollers from Atmel's distributors, or they are available at many resellers, including DigiKey. Search for "atmega" and limt yourself to DIP packages.

Comment Re:Tap Energy of Volcano? (Score 1) 469

One issue you would have "venting" the energy of a volcano is that the magma can be hot enough to melt your gear. It is molten rock, but that does not mean it's just barely molten. It can be much hotter than the melting point of a rock. Water melts around 0 degrees Celsius, but that does not mean all water is 0 degrees celsius. It can easily be 95 degrees celius.

Another issue is that magma tends to clog pipes...when it hardens into rock.

There are various kinds of rock, that have different melting points. Making it flow through a pipe without melting the pipe or clogging would be difficult. Think of piping sewage, but with molten rock. You can have some magma hot enough to melt your fancy alloy pipe, while other bits of slag are coagulting to block off the pipe.

So, let's say to drop a heat exchanger into the center of a large magma chamber. Let's say it doesn't melt. Let's say it doesn't clog. How do you avoid the magma working its way up through the rock and coming out where you weakened it with your drill? Reinforcing rock is difficult.

If you do manage to get a heat exchanger working, you will quickly suck the heat out of that local area. Rocks do not conduct heat well, especially when they cool and fracuture.

You might be better off trying something a bit easier, like reflecting lots of sunlight on (purified) water so it boils, then runing that steam (which is now under pressure) through a fan (stem turbine) to turn a generator.

If you think you can tap magma, good luck. I'll stick to things that seem very simple.

RecycledElectrons

Comment Doesn't anyone else upgrade phones, tablets, etc? (Score 1) 559

I upgrade my ebook readers, my MP3 players, and my tablet computers.

Surely you can solder a few wires to a USB drive...right?

Surley you have replaced your tablet's Mini-PCI-Express 802.11B wi-fi card with one that supports 802.11G&B, as well as Bluetooth...right?

And you have surely patched a noise cancelling bluetooth headset into your 2 meter ham radio so you can talk at 90MPH with the windows down...right?

Everyone's upgraded an IPOD's flash disk and battery...right?

If not, go away.

Comment Re:Beaming energy (Score 1) 351

> To beam energy to a vessel, you have to cross the atmosphere. Methinks
> you're not just going to only heat up the vessel.

The current shuttle burns propellant and thereby heats the atmosphere.

All rocket propellants come out at high temperatures, and heat the atmosphere.

Even just sitting somewhere heats the atmosphere by your body heat!

So of course anything we do will heat the atmosphere a little, but even if the system is 5% efficient, it's going to (1) be cheaper (2) prove more useful, and (3) cause less atmospheric heating than anything we have at the moment.

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It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.

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