View the TED-Ed Lesson Music and math: The genius of Beethoven
How is it that Beethoven, who is celebrated as one of the most significant composers of all time, wrote many of his most beloved songs while going deaf? The answer lies in the math behind his music. Natalya St. Clair employs the “Moonlight Sonata” to illustrate the way Beethoven was able to convey emotion and creativity using the certainty of mathematics.
Fig. 13. Spiral nebula (more likely, a galaxy). Les Merveilles Céleste. 1881.
Ozone Layer is Recovering
Earth’s protective ozone layer is beginning to recover, largely because of the phase-out since the 1980s of certain chemicals used in refrigerants and aerosol cans, a U.N. scientific panel reported in a rare piece of good news about the health of the planet.
Scientists said the development demonstrates that when the world comes together, it can counteract a brewing ecological crisis. For the first time in 35 years, scientists were able to confirm a statistically significant and sustained increase in stratospheric ozone, which shields the planet from solar radiation that causes skin cancer, crop damage and other problems.
Read more: http://www.laboratoryequipment.com/news/2014/09/ozone-layer-recovering
Dunes in White Satin
Isa Arfen’s ready-to-wear Spring 2015 collection featured 60’s inspired looks, including a standout dress made from guipure circle lace with studded geometric lines. Although the 1960’s pre-dates the existence of this technology by about a decade, the solderless breadboard exhibits a distinct likeness to the dress in question. This board allows one to experiment and prototype electronic circuits without the use of metal soldering of wires between components. The conversion of Isa Arfen’s dress to a wearable breadboard would create the perfect hybrid of high fashion and technology.
- Chris Ing, freshphotons.com | #iOnFashion, NYFW 2014
are pears flammable
after 2 hours of trying to set alight to a pear i can condclude they are not flammable
mum: whats that smell
me: burning pears
me: i tried to set a pear on fire
[science clapping] well done friend
you forgot your data table:
Here you can see the light from a laser being bent as it follows the path of a stream of flowing water. This happens because the angle at which the light from the laser hits the surface of the water is beyond the ‘critical angle’ - instead of refracting the light, it’s reflected internally. This ‘total internal reflection’ is a property used in fibre optic cable to transmit signals of light over great distance, allowing light to bend around corners. To see how you can do this demonstration for yourself & for an answer to the question: what colour is a mirror? Check out this video: http://youtu.be/woN9KpAGv4I