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New EU Rules Will Limit Vacuum Cleaners To 1600W

TheTrueScotsman I don't see what the problem is (338 comments)

If 1600W is enough, then just buy two vacuum cleaners. Duh.

about three weeks ago

Inside BitFury's 20 Megawatt Bitcoin Mine

TheTrueScotsman Re:Good Thing (195 comments)

That is incorrect. The validity of a transaction depends only on how it relates to the transactions that precede it. Mining simply keeps track of the "official" history of transactions, to guard against double-spend attacks.

Transactions are useless unless they're confirmed in the blockchain. That's the whole point of bitcoin. Mining and the blockchain is all there is to bitcoin.

And that's another problem: the energy used for mining depends on the hashrate, not transaction rate. It's true that increasing popularity of Bitcoin rises both, but trying to calculate "energy per transaction" on that basis is pretty much the same as trying to calculate "drowned people per litre of ice cream consumed" on the basis that warm weather increases both.

You might have noticed that my calculation started off with network hash rate because that's where the energy is being used. I don't really think it's that important a calculation anyway, but I did it to show the $35 per transaction of the OP was incorrect. Indeed, if the transaction rate goes up faster than the hash rate, then the transaction cost is even lower.

Instead of criticizing, maybe you can come up with a better cost per transaction for bitcoin (because there surely is one).

about a month and a half ago

Inside BitFury's 20 Megawatt Bitcoin Mine

TheTrueScotsman Re:Could Be Curing Cancer (195 comments)

This a thousand times over. Run this equipment with World Community Grid or Folding@Home

How would that work? Do any of these tasks benefit from a metric fuckton of SHA-256 rounds?

about a month and a half ago

Inside BitFury's 20 Megawatt Bitcoin Mine

TheTrueScotsman Re:Good Thing (195 comments)

Pretty much all the power needed for a transaction is going to be the mining (a transaction isn't valid unless a miner has entered it into a block). So we can do a quick-and-dirty calculation; if we assume:

- 150000 Thash/s total network performance
- power consumption of 1kW per Thash
- power cost of 10 cents per kWh
- 6 blocks per hour
- 400 transactions per block

((150000 * 0.1) / 6) / 400 = $6.25 per transaction

about a month and a half ago

New Raspberry Pi Model B+

TheTrueScotsman Dual Gbit LAN Please (202 comments)

With (true) dual Gbit LAN, I would use a boatload of these. Never mind, there are (more expensive) alternatives.

about 2 months ago

Bugatti 100P Rebuilt: The Plane That Could've Turned the Battle of Britain

TheTrueScotsman Re:Ignorant author (353 comments)

A turboprop is not a jet engine; it's a turbine engine mated to a propeller.

A jet engine produces thrust using jet propulsion (it doesn't even have to be a turbine).

about 6 months ago

Bitcoin Tops $1,000 For the First Time

TheTrueScotsman Re:If central bankers are like rats... (371 comments)

Bitcoin will soon be on a parity with gold (per ounce) and is much cheaper and easier to secure and transport.

about 10 months ago

Experts Hail Quantum Computer Memory Stability Breakthrough

TheTrueScotsman Re:They will break all the encryption (53 comments)

Symmetric (shared-key) algorithms do have vulnerabilities to quantum computing: Grover's algorithm allows a brute-force search to be performed in square-root time of the key size (i.e. 256-bits -> 128-bits, 128-bits -> 64-bits). This isn't a big problem as long as you're using at least 256-bits.

about 10 months ago

First Arab Supercar Costs $3.4 Million, Has Diamond-Encrusted Headlights

TheTrueScotsman Fug Ugly (241 comments)

And those wobbly suicide doors are hilarious.

Why can no modern car maker design something with the beauty and elegance of an E-Type or Muira?

about 10 months ago

South African Education Department Bans Free and Open Source Software

TheTrueScotsman This is great news (185 comments)

The last thing this industry needs is yet another wave of bad Java programmers.

about a year ago

Lockbox Aims To NSA-Proof the Cloud

TheTrueScotsman Encrypts and compresses? (292 comments)

One would hope they do the compression first otherwise there's very little point.

1 year,16 days

Supercomputer Becomes Massive Router For Global Radio Telescope

TheTrueScotsman Re:400 Mb per seconds (60 comments)

It's actually 400 MB. You need to get this sort of thing right if you're planning a career in the tech industry when you finish school.

about a year ago

Neil Young Pushes Pono, Says Piracy Is the New Radio

TheTrueScotsman Re:FLAC (361 comments)

I love vinyl and I know for sure that it gives a less accurate sound than CDs. What's great about vinyl is the euphonic distortion it adds to the sound.

about 2 years ago

Hardware Is Dead — At Least Most Expensive Hardware Is

TheTrueScotsman Re:No. What's up with these PC video screens? (342 comments)

There are loads of 1920x1200 monitors available. Looking at my local hardware shop's page, there about 30 different models with both TN and IPS screens from the usual suspects (Acer, ASUS, Dell, HP, NEC, Samsung, etc).

I prefer that extra bit of height and use a 2560x1440 27-inch Dell.

about 2 years ago

I go through keyboards ...

TheTrueScotsman Re:Model M Good, Thinkpad Bad (341 comments)

Cut your fingernails :/

He probably plays the classical guitar (long fingernails only on the right hand...), so that's not an option.

about 2 years ago

Ask Slashdot: How Do I De-Dupe a System With 4.2 Million Files?

TheTrueScotsman Re:CRC (440 comments)

Chance of a collision between any two random files is the birthday problem, isn't it? That would be one in 2^64 for MD5 (square root of 2^128). That's a pretty low probability for a few TB of data. Anyway, just do a straight compare if the hashes collide.

about 2 years ago

Sources Say ITU Has Approved Ultra-High Definition TV Standard

TheTrueScotsman Re:useless aspect ratio (341 comments)

I don't agree. As long as you have sufficient vertical resolution (1080 isn't enough, 1200 is ok, 1440 is great for me at the moment), then horizontal resolution is fine at either 16:9 or 16:10. In fact, at (say) 1200 vertical, 16:9 would give you a more useful monitor (won't ever exist, of course).

1920x1080 is, of course, an abomination for work and I think this is where the hatred of 16:9 comes from. Whereas 2560x1440 looks great from where I'm sitting.

about 2 years ago


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