Two days after it was lofted into the air over the Sahara Desert on February 20, dust blew north into Spain and Europe. As dust particles settled down en masse on the snow-covered peaks of Spain’s Sierra Nevadas, they left the mountains a very different color. [GIF shows Feb. 18 – Feb. 27, 2017. Original post on NASA Earth Observatory]
Here’s one page to view all the Super Bowl LI’s commercials without needing to keep hitting a play button (may have to go through other ads tho). Here’s my favorite, the most powerful storytelling in one short video, wordless and (and making 8+ million YouTube viewers and counting) speechless:
My son has had a fulfilling 2016: winning chess trophies and making leaping progress in piano. And he also beat Andy Murray (video below). Among his 2017 (parents-bestowed) New Year resolutions is: beating Roger Federer in the new tennis season. I, for one, have a lot of hope on that…
Smog was particularly bad in cities like Beijing, which declared a five-day pollution “red alert” on December 16. The Chinese capital reached dangerous levels of more than 400 micrograms per cubic meter. In Shijiazhuang, capital of the Hebei province, airborne pollutants surpassed World Health Organization (WHO) guidelines by 100 times on December 19. (A safe level is 10-25 micrograms per cubic meter of PM2.5, according to the WHO.)
Fine, airborne particulate matter (PM) that is smaller than 2.5 microns (about one thirtieth the width of a human hair) can cause lung damage. Industrial practices like fossil fuel burning and agricultural fires produce most PM2.5aerosol particles. Despite efforts to curb these emissions, China continues to struggle with its air quality.
From space, the smog appears gray. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured a natural-color image (top) of northeastern China on December 22, 2016. Heavy, gray smog shrouds parts of the country, while the brightest, whiter areas are likely clouds or fog. The second image shows the severity of haze as measured by satellite, with deepest reds indicating the most affected areas. The map is based on MODIS measurements of aerosol optical depth—how much sunlight the aerosol particles prevent from reaching the ground.
For full NASA post and interactive slider image tap here.
There is really a ton of visual pleasures out there beyond our everyday naked eye sight. (Maybe our eyes zoom and pan and focus too well, don’t they?)
Before iPhone 8 can do more amazing photography miracles, there are simple and inexpensive tools out there that will empower your already neat iPhone like those cool DSLR lenses. Above is what I got a few months ago and in this holiday season I am gonna use it to have a lot of fun. Here is a sample the iPhone took with it. Read More