Testing Vacuum

Brian Cox visits the world’s biggest vacuum chamber – Human Universe: Episode 4 Preview – BBC Two, this chamber is surely abhorred by nature.

NASA’s Space Power Facility in Ohio to see

30 t of air, atmospheric –> 2 g of air

3 hours to pump out 800,000 cubic feet of air

Advertisements

Papers Download Statistics from Elsevier: Effect of tempering upon the tensile properties of a nanostructured steel

Elsevier provides some statistics for my one of my papers.

The paper is also available here – on the phase transformations website.

Downloads from Elsevier is about 1/3 from China and 1/9 th from the UK.

 

Top countries Pct
China 34%
UK 11%
Germany 6%
USA 6%
Turkey 5%

 

Paper Download Statistics

Paper Download Statistics

 

Lectures on Bainite – 2007

A blast from 2007 for Harry Bhadeshia fans. These lectures can be found on youtube. Slides can be found here http://www.msm.cam.ac.uk/phase-trans/2007/M/M.html

Prof. Bhadeshia’s new book will be available soon, you can find details here: http://www.oxbowbooks.com/oxbow/other-subjects/materials-science-engineering/bainite-in-steels-3rd-edition.html

Occam’s Razor and Newton’s Flaming Laser Sword

It’s well established that in science we can use Occam’s Razor to decide which is the most likely explanation, that between competing hypotheses that one that requires the lowest number of assumptions should be preferred.

Newton’s flaming laser sword is a philosophical razor coined by Mike Alder in an essay entitled “Newton’s Flaming Laser Sword, Or: Why Mathematicians and Scientists don’t like Philosophy but do it anyway” . To summarise the position that “what cannot be settled by experiment is not worth debating”. It was published in Philosophy Now in May/June 2004. The razor is humorously named after Isaac Newton, as it is inspired by Newtonian thought, Mike characterised this sword as being “much sharper and more dangerous than Occam’s Razor”.

Newton's Flaming Laser Sword

Newton’s Flaming Laser Sword

Newton’s flaming laser sword sounds very useful. It slices, it dices… it might be suggested that such a sword could cut away too much, and prevent one from taking a position on politics or religion. That’s not really true, it would prevent one ever being able to make religious explanations or do other special pleading and claim it was science. In the field of politics it may leave one asking for evidence to support particular political judgements. I don’t think those are bad outcomes. Mike Adler suggests that the flaming sword is a useful tool against Platonic philosophers, who may ask one to engage in an older type of game, than the one usually played by modern science and mathematics.

Anyway, this leaves the question, has anyone every seen Occam’s razor or Newton’s Flaming laser sword? I think we need to mount an investigation as to were these useful historical artefacts have been left.

Download a Flaming Laser Sword from the internet archive (PDF)

I think Newton would be a good suggestion for the next Cambridge scientist movie, although some have already been made such as “Isaac Newton the last magician” (2013) and the 2010 movie “The Invention of Calculus”

Frequently bought Bayesian Statistics books…

Frequently Bought Bayesian Books

Frequently Bought Bayesian Books

This leaves the question, which books were bought using Bayes’ theorem rather than using the frequentist approach?

Bainite in Steels

Harry Bhadeshia’s book Bainite in Steels has reached it’s third edition. It’s available on pre-order at a price of 80 UKP and will be available from April. The third addition has an additional 40% more content to cover the developments of the 15 years of research since the previous edition.

This book is highly recommended for those who have an interest in the physical metallurgy of steels, alloy design, and solid-solid transformations.

http://www.oxbowbooks.com/oxbow/other-subjects/materials-science-engineering/bainite-in-steels-3rd-edition.html

Cover image for Bainite in Steels, 3rd Edition.

Cover image for Bainite in Steels, 3rd Edition.

Laser engineering to produce hydrophobic surfaces

TheEngineer has an article covering work by scientists at the University of Rochester who have achieved the surface modification of metals, by treatment with lasers, to make the surfaces hydrophilic or super-hydrophobic. In their study they used titanium, brass and platinum.

Bouncing water drops

Bouncing water drops from modified metal surface

Original paper: http://scitation.aip.org/content/aip/journal/jap/117/3/10.1063/1.4905616