Thursday, July 14, 2011

3D printing with the sun, fuel efficient cars, BMW logo history and guitar strings movement (just varied news)

This is an incredible project by Markus Kayser, who built a 3D printer that heats up sand using concentrated solar rays and solar energy. It doesn’t get more “enviromentally friendly” than this. Check out the video below, although I think that it is not very precise, just imagine what could be done if you concentrate further the rays and improve its precision.

Markus Kayser - Solar Sinter Project from Markus Kayser on Vimeo.

How cool is it that kids are nowadays building cars that do over 1,000 mpg (that’s about 425 km/l)? That’s pretty impressive specially when I think that at that age most people dreamed of only going to the YMCA car races.

“In the UK, students from regional schools and universities took part in the annual Mileage Marathon Challenge near Leicester, England, each team vying to set new gas mileage efficiency records in a race around a track. Cars were allowed to coast, but had to maintain a minimum speed of 15 miles per hour. Students worked on the vehicle prototypes, many in partnership with design and engineering firms.“ via BBC.


For those of you that heard the story that the BMW logo represents a moving propeler over the blue sky, here below is a short video of how the logo was developed and how it came to be the symbol for the company that has remained mainly unchanged since its inception.

You have got to see the video below that shows how the strings of a guitar oscillate. Of course it shows as if some of waves were standing waves, but it is all due to the rolling shutter effect in the camera, but definitely an interesting experiment. See how each cord is almost transformed into an oscillator, really good stuff.

Monday, July 11, 2011

Photography related posts

CameraSim is an online SLR simulator which allows you to edit variables like distance to subject, focal length, ISO, Aperture and shutter speed and see in real time how they affect your end result. It’s quite ingenious and interesting to play around. It would be a great tool to showcase how all these items come together and affect your pictures. Via John Nack

Stolencamerafinder lets you check online for pictures taken with your camera. Although I have tried it with my camera serial number and couldn’t locate any pictures at all

TIME has a very interesting Behind the scenes photo gallery from the original Jaws movie, below are a couple of pics that I really liked, but feel free to go to the gallery to learn more about how they shipped and maintained the shark that was hanged in the dock and tons of other details.

HDR (High Dynamic Range) has been brought a step closer to the motion picture with AMP, a new camera that records HDR realtime through a single lens by using a two beam-splitter and directing that light to 3 different sensors. Have a look at the video below for more information about it.

AMP Digital Video from Mike Tocci on Vimeo.

The Atlantic has a very interesting set of pictures that show Bonfires of Saint John and Corpus Christi celebrations in different parts of the world, it’s great to see some of the are from Venezuela!! Here below are some that I really liked

A long-exposure image shows light trails, produced by faithful carrying candles as they walk past the Cathedral during a Corpus Christi procession in Brasilia, Brazil, on Thursday, June 23, 2011. (AP Photo/Eraldo Peres)




People dressed as dancing devils walk down a hill during a traditional dance celebration in Naiguata, Venezuela, Wednesday June 22, 2011. Spanish conquerors and Catholic priests presented dancing devils ceremonies to Latin America's African slave population 200 years ago, who adopted it and incorporated drums into the ritual. The dancing devil ceremony comes the day before the Catholic holiday of Corpus Christi. (AP Photo/Ariana Cubillos)#

Chinelo dancers prepare to perform during Corpus Christi celebrations near the Metropolitan Cathedral in Mexico City, on Thursday, June 23, 2011. (AP Photo/Miguel Tovar) #