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Tuesday, January 8, 2019

Caryatids

 The Caryatids (Greece)

Although of the same height and build, and similarly attired and coiffed, the six Caryatids are not the same: their faces, stance, draping, and hair are carved separately; the three on the left stand on their right foot, while the three on the right stand on their left foot. Their bulky, intricately arranged hairstyles serve the crucial purpose of providing static support to their necks, which would otherwise be the thinnest and structurally weakest part. (Source: Wikipedia)

Tuesday, January 1, 2019

New CERN technology transfer

The new MediPix3 aims to produce better images from our body.
Check this image about color X-Rays:
A 3D image of a wrist with a watch showing part of the finger bones in white and soft tissue in red. (Image: MARS Bioimaging Ltd)
MARS’ solution couples the spectroscopic information generated by the Medipix3 enabled detector with powerful algorithms to generate 3D images. The colours represent different energy levels of the X-ray photons as recorded by the detector hence identifying different components of body parts such as fat, water, calcium, and disease markers.
Source: https://medipix.web.cern.ch/news/first-3d-colour-x-ray-human-using-cern-technology 

Friday, December 7, 2018

The Physics of Spiderman 3


There is an article in Popular Science related with the Physics of Spiderman 3, specially when Spiderman fall several times without breaking a bone.
The calculus are demonstrated in the webpage and the force is something about 400000 Newtons!!!
And an acceleration around 6000 m/s2 (~600 x gravity acceleration), 2 times higher than some insects acceleration.

Source: https://www.popsci.com/article/2007-10/physics-spiderman-3 

Friday, November 30, 2018

Painting like Pollock


Dripping like Pollock
BERNARDO PALACIOS, SANDRA ZETINA, ROBERTO ZENIT, Universidad Nacional Autonoma de Mexico, CHRIS MCGLINCHEY, Museum of Modern Art, New York — this scientists made an investigation where they reproduced, in a controlled manner, the dripping technique used by Jackson Pollock to creat abstract paintings. They drip a fluid jet on top of a horizontal surface, varying the height from the substrate, the liquid flow rate and the displacement speed of the nozzle. They also found that the non Newtonian properties of the paints are of great importance to create these patterns. Since the fluid jets are rapidly stretched, the sudden increase of extensional viscosity plays an important role to produce the characteristic Pollock patterns.
(from the abstract in a Scientific presentation made by the author in 2014)

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IBSE about Light Pollution

Here is my presentation that happened in the Discover the Cosmos Conference (Volos, Greece - 2013). The presentation was an Inquiry Base...

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