February 2013 – meditationatae

Linuist Meredith Gardner and the VENONA decrypts

Maredith Gardner worked on decoding the Soviet codebook into Russian words, as part of the VENONA project. One may search for: Meredith Gardner cryptologic polyglot

Euler-Maclaurin summation for high-precision zeta computation

I wrote about this yesterday in more detail in sci.math . Using 1st formula of Section 6.4 in H. M. Edwards’ book “Riemann’s Zeta Function”. Attempting to find near-optimal parameters N and ‘nu’ soas to minize time to compute zeta(1/2 + i*14.13…). This case: 60,000 decimal digits precision after “0.” required. Tested: N = 30,000… Continue reading Euler-Maclaurin summation for high-precision zeta computation

SAMATE project at NIST

From FedTech Magazine. NIST are making a database of vulnerabilities in source code (such as buffer overflows on the stack in C). There are many contributors to the database. The idea seems to be to make it easier to find “unsafe” coding practices that have the potential to create vulnerabilities. It’s a tool to aide in establishing assurance and security of computer code, something like that.

video of homemade Bonetti machine

A Bonetti machine is an electrostatic generator.

Spark from Bonetti electrostatic generator

This seems to be related to Wimshurst machine, as shown here:

http://www.coe.ufrj.br/~acmq/wimshurst.html

coup d’etat in Guatemala, 1954

By Blum. Blum says this:”The State Department labeled the accusations of a US role “ridiculous and untrue” “. Copies of coup plans made their way to Arbenz and were mentioned in the press. So, when is the US State Department to be believed?

Very good blog

It looks promising.

John Peurifoy “incensed” by Arbenz resignation speech of Sunday June 27 1954

Then, Diaz takes over as President of Guatemala. USA Ambassador to Guatemala John Peurifoy asks Diaz to execute 25 communists. Later, Diaz releases political prisoners, including communists. Then, USA Ambasador to Guatemala John Emil Peurifoy cables the operation center in Opa-locka, Florida, USA with the message “we have been double crossed”, “Bomb!”.