Close to 100,000 marched in London yesterday, from 10 Downing Street to the Israeli embassy. For many, it was an inspiring and affirming experience – and some in Gaza have clearly been appreciative of the solidarity.

Lots of the rhetoric from speakers still focused on BBC’s biased coverage or asking David Cameron to intervene in some non-specific way, but luckily some speakers (notably Ben White but also Stop The War) used their platform to call for an arms embargo to Israel and for “meaningful solidarity” in terms of BDS actions.

Some of our members (and others we heard talking on the march) were irritated that the stage for speakers (organised by Palestine Solidarity Campaign, Friends of Al Aqsa etc.) blocked the main entrance to the Israeli embassy, stopping any chance of access to protesters.

We hope that future mass demos organised by the better-funded Palestine solidarity groups in the UK are able to focus more on what specifically people can do rather than turn up at mass demos!

The prime spiral, also known as Ulam’s spiral, is a plot in which the positive integers are arranged in a spiral with primes indicated in some way along the spiral. Unexpected patterns of diagonal lines are apparent in such a plot. This construction was first made by Polish-American mathematician Stanislaw Ulam (1909-1986) in 1963 while doodling during a boring talk at a scientific meeting. While drawing a grid of lines, he decided to number the intersections according to a spiral pattern, and then began circling the numbers in the spiral that were primes. Surprisingly, the circled primes appeared to fall along a number of diagonal straight lines or, in Ulam’s slightly more formal prose, it “appears to exhibit a strongly

nonrandomappearance”In the above variation of the Ulam spiral,

red squares represent prime numbers and white squares represent non-primes. Image source.

(via ogdoad)

2 months ago on May 10, 2014 at 01:52am with 2 notes

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