Forwarded message:
You wouldn't even have to take it apart. Just subject it to analysis using SQUID's. Using this technology you would not even have to physicaly touch the card, let alone remove any parts of it.
Excuse me, but April Fool's Day isn't until tomorrow. Besides, all you have to do is run the card through a transporter, and then dump the pattern buffer to a floppy. :)
-- Mike Duvos $ PGP 2.6 Public Key available $ mpd@netcom.com $ via Finger. $
Hi Mike, Apparently you are grossly unfamiliar with the characteristics and capabilities of SQUID's. To help you catch up... Conductus 969 West Maude Av. Sunnyvale, CA 94086 408-737-6700 408-737-6699 Fax If you happen to be in Austin, TX, Data Managemenet Associates 3636 Executive Center Dr., #216 Austin, TX 78731 512-338-4701 The product under suggestion is called 'Mr. SQUID' and is a device intended for educational and introductory appllications. Its specifications are: SQUID Amplifier: Voltage Gain x 10,000 Frequency Responce 0 - 2.8 kHz Voltage Noise Floor < 5.0 nV/ sqrt. Hz @ 10 Hz SQUID Specifications: Critical Current (minimum) 5 uAmps @ 77K Magnetic Field Modulation (minimum) 1 uVolt @ 77K Int. & ext. Coil Mutual Inductance ~75 pHenries Int. & ext. Coil Resistance ~20 Ohms @ 77K Mr. SQUID User's Guide Contents: Typical experiments: Resistance v Temperature of the YBCO SQUID Flux-locked Loop Using a Flux-locked Loop as a sensitive non-contact voltmeter Microwave induced (Shapiro) steps @ 77K & h/e Inductive measurement of the Tc of an HTS film SQUID properties in pumped liquid nitrogen The following is taken without permission and verbatim from their pamphlet What's inside the probe? The heart of Mr. SQUId is a small integrated circuit containing a dc SQUID and 2 modulation coils. The SQUID itself is a superconducting ring made of Yttrium Barium Copper oxides (Y1Ba2Cu3O7, sometimes called YBCO or 123) with two active devices called Josephson Junctions - the basic building block of all superconducting electronics - made by a process invented at Conductus. The coils are made of thin film silver deposited on top of an insulating layer. The chip in Mr. SQUID represents a remarkable level of sophistication in a materials technology scarecly 5 years old. And, unlike any other SQUID system currently on the market, Mr. SQUID is designed to operate in a liquid Nitrogen bath at 77K (-169C). What does Mr. SQUID do? Mr. Squid is a sensitive superconducting magnetometer and can therefore be used to detect small magnetic signals if they are properly introduced to the SQUID. The limiting performance of Mr. SQUID is set by its economical electronics package and by its non-superconducting modulation coils. As a result, Mr. SQUID does not have the sensitivity of high-performance laboratory SQUIDs and thus cannot be used to detect truly minute signals such as those generated in the human brain. Enjoy!
Jim Choate <ravage@ssz.com> writes:
Apparently you are grossly unfamiliar with the characteristics and capabilities of SQUID's. To help you catch up...
Actually, I am quite familiar with Superconducting Quantum Interference Devices and the one existing commercial application of the technology, a magnetometer probe containing a liquid nitrogen cooled SQUID chip at its tip. [Biography of Mr. Squid deleted] I will still laugh at suggestions that Mr. Squid can remotely read the EEPROM in my smart card, however. -- Mike Duvos $ PGP 2.6 Public Key available $ mpd@netcom.com $ via Finger. $
Jim Choate <ravage@ssz.com> writes:
Conductus ... The product under suggestion is called 'Mr. SQUID'...
It's cool ;-) Although they haven't got a Web page yet, they've got plenty of press in various places around the net. Or you can always get product info from info@conductus.com (or Scott Sachtjen <scotts@conductus.com>, if info doesn't work). -- Roger Williams PGP key available from PGP public keyservers Coelacanth Engineering consulting & turnkey product development Middleborough, MA wireless * DSP-based instrumentation * ATE tel +1 508 947-8049 * fax +1 508 947-9118 * http://www.coelacanth.com/
participants (3)
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Jim Choate -
mpd@netcom.com -
Roger Williams