after years finally I’ve got my satisfaction as claim by secret blogging seminar finally if you google latex the first result isn’t a porn site but the latex project.You can try by click the link above
http://www.google.com/search?client=safari&rls=en-us&q=latex&ie=UTF-8&oe=UTF-8
or probably the latex fetish perversion has ranked down in the last month, so there are less latex maniacs out there…
Maybe…
zerocold
Surfing up the web I found this amazing paper that suggest the fondamental costant (such as speed of light or the atom mass) could change throught time a
a must read.
http://arxiv.org/abs/0903.5321
zerocold
Yesterday I post about the work of Girlanda about measuring the distante earth-moon by analysing the Armstrong’s. I write him and he’s the reply which underline Luca’s personality best.
Hi zero,
thanks for the pingback I’ve never expect so much rumors.
It was a funny job of some years ago it will apper soon on American Journal of Physics.
If teaching woudn’t be so funny, the money the would count a little bit more
luca.
zero
I link from keplero I link with pleasure, a beautiful study published on arxiv.org, developed by a class of the Liceo Scientifico “A. Vallisneri” in Lucca.
Armed with a mp3 with the conversations of Neil armstrong with Houston, thanks to the echo leading and with the help of the software audacity, these students have succeeded in establishing the distance of the earth from the moon, by calculating it in around 3.93 x 10^8 mt. Not to bad for an Italian school, that seems more and more ruined in the national newscasts. This study could have been the proof of the fact that we have really gone to the moon, if we don’t hypothesize a plot that an echo of artificial return has been created for this purpurse….
Finally standing ovation for the researcher Luca Girlanda (perhaps precarious) at 1000 €/month that conducted the study, go on we are with you…
zerocold
it seems that a group of mexican scientist has found a way to get diamonds from tequila, I belived one could only get a rush with tequila
build the most higher tower
http://ping.fm/AyKpx
monday gift
http://ping.fm/oIMUp
The new bulletin of the AMS is you with a not so simple paper about matrices multiplication.
Ok maybe the two or three of you who’s reading this blog will problably know the standard algorithm to multiply two matrices let say A and B are 2×2 matrices in R you need to compute 8 multiplication two find the result matrix. Ok that was not so difficult, in fact for a nxn matrix you will need n^3 multiplication to computer the result. The hard part for a pc in term of complexity is the product so if whe minimize the product it is possible to minimize the cost of elaboration by a computer. In 1969 Strassen proced that with a tricky observation it is possible to computer the product of a 2×2 matrices with only 7 product.It seems not a big result but this with appropriate generalization could lead to compute the product of a 2^k x 2^k matrices with 7^k multiplications in place of (2^k)^3 standard multiplication. This means that for a 32×32 matrix (k=5) this will lead to 7^5=16807 multiplications instead of 32^3=32768, which is as least the half.
I have to try a python test to verify that is at least the half in terms of times. In fact I haven’t finish the paper but one simple question arise: is it possible to find an algorithm for a 2×2 matrices multiplications that use only 6 multiplications?
zerocold
ok I partecipate with lot of plajure at beppe grillo’s on-line referendum
È lei favorevole alla adozione da parte del Consiglio comunale di Vicenza, nella sua funzione di organo di indirizzo politico amministrativo, di una deliberazione per l’avvio del procedimento di acquisizione al patrimonio comunale, previa sdemanializzazione, dell’area aeroportuale “Dal Molin” – ove è prevista la realizzazione di una base militare statunitense – da destinare ad usi di interesse collettivo salvaguardando l’integrità ambientale del sito?
Chi vota SI non vuole la nuova base militare DAL MOLIN a Vicenza.
Chi vota NO vuole la nuova base militare DAL MOLIN a Vicenza. <a href =”http://answers.polldaddy.com/poll/968794/” >Chi vota SI è favorevole alla proposta dell’Amministrazione. Chi vota NO è contrario </a> <br/> <span style=”font-size:9px;” mce_style=”font-size:9px;”> (<a href =”http://www.polldaddy.com”> polls</a>)</span>
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