Household Tips: Reviving a Dead Laser Cutter.

Not long ago, I happened to come across a very cheap and heavily used CO2 Laser Cutting Machine, made by Full Spectrum Inc. About 1K USD, including curbside delivery from across the continent.  I also bought the traditional water chiller, air compressor, exhaust manifolds, etc:

The junk seller promised an intact tube, and indeed there was:
Naturally, [...]

Posted in: Cold Air, Distractions, Hardware, NonLoper by Stanislav 6 Comments

Of Decaying Urbits.

After the sale of my Urbit ‘dukedom’, several readers have written to me, asking ‘why.’ The following was my reply to one such letter, from a fellow who suggested implementing a proper hardware foundation for Nock (Urbit’s computational base.)
Dear [Reader],
Here was my own Nock.
But notice that I made no attempt to implement a Nock [...]

Dukedom for Sale.

Urbit “dukedom” [1] no. 24, “DYS”, belonging to yours truly, is hereby for sale!
Sold! Please enjoy your purchase, Mr. Gogulski!
Price: 4.5 BTC, payable to 15pWcAqagHf2EeFjapjWt4EhYWgL5fne7s. Sale ends on Dec. 31.
Anyone seriously interested should contact Curtis Yarvin, the author of Urbit, to broker the sale.
Alternatively: I’ve written a PGP-signed declaration of the sale. [2] You can simply send [...]

You are Bad at Entropy.

Presenting a very old game, entitled: Man vs. Machine. Or, why Man is not a Particularly Good Source of Entropy.

Phuctor: Fun with Public-key Cryptography.

All of my readers are invited to test the security of their GPG public keys using a new and very simple online tool: “Phuctor” (part of a long-term collaborative project with Mircea Popescu.)
Phuctor is based on cutting-edge Ancient Greek technology.

Engine now re-written, using GMP. Roughly 100-fold speed boost! The service is now essentially “real-time.”
Edit: Feel [...]

A Country of Which Nothing is Known but the Name.

If you came here via a search engine, you were probably looking for Pierre Cartier’s wonderful mini-biography of the mathematician Alexander Grothendieck – from which I shamelessly stole the title. Please go straight there. Otherwise…

“And so no one, except for two people, enters the top floor of the Aedificium. …”
The abbot smiled. “No one should. [...]

Don’t Blame the Mice.

Your kitchen is alive with vermin! Who is to blame? The cruel forces of nature? Or, might it be you – the fellow who scattered delicious crumbs everywhere; spilled honey a thousand times without picking up a mop once; and kept a mountain of old newspapers around for rodents to chew into nest liner? [...]

One for the Spam Zoo.

Consider this oddity:

from:
Sydney B. Kirklen <sydneybkirklen@gmail.com>

to:
censored

date:
Thu, May 9, 2013 at 3:05 PM

subject:
Is Loper-os.org For Sale? (Website Not Just Domain)

My business partners and I would like to present you with an offer to purchase loper-os.org.  We promise not to take up much of your time.  Would you be interested in selling if [...]

Posted in: Distractions, NonLoper by Stanislav 5 Comments

Bitcoin Adventures.

The Bitcoin Kill Switch is quite alive, well, and waiting to be pressed:
“I can’t assure with 100% certainty that the all the black dots are owned by Satoshi, but almost all are owned by a single entity, and that entity began mining right from block 1, and with the same performance as the genesis block. [...]

A Review of MPEx, the Bitcoin Stock Exchange.

“The most important thing a crook needs is an impeccable reputation.”
(Attributed to Agatha Christie.)

Bitcoin interests me as an obvious example of a technological jewel tossed around aimlessly by the brutal hands of cave men. I can’t help but picture a flashlight or a radio set, left behind in the wilderness by geologists, to be [...]

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