Why would a cloud appear to be different colors?
A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size. When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts. Therefore, different colors will come to the observer from slightly different directions. Many clouds start with uniform regions that could show iridescence but quickly become too thick, too mixed, or too far from the Sun to exhibit striking colors. The above iridescent cloud was photographed in 2009 from the Himalayan Mountains in Nepal, behind the 6,600-meter peak named Thamserku.
Image credit: NASA
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- Learn to recognize failure and know the big difference between panicking and choking.
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Big tech is making its opening moves into the health care scene, but its focus on tech-savvy millennials may miss the mark.
- Companies like Apple, Amazon, and Google have been busy investing in health care companies, developing new apps, and hiring health professionals for new business ventures.
- Their current focus appears to be on tech-savvy millennials, but the bulk of health care expenditures goes to the elderly.
- Big tech should look to integrating its most promising health care devise, the smartphone, more thoroughly into health care.
A new study, led by psychologist Jean Twenge, points to the screen as the problem.
- In a new study, adolescents and young adults are experiencing increased rates of depression and suicide attempts.
- The data cover the years 2005–2017, tracking perfectly with the introduction of the iPhone and widespread dissemination of smartphones.
- Interestingly, the highest increase in depressive incidents was among individuals in the top income bracket.
Here's why universal basic income will hurt the 99%, and make the 1% even richer.
- Universal basic income is a band-aid solution that will not solve wealth inequality, says Rushkoff.
- Funneling money to the 99% perpetuates their roles as consumers, pumping money straight back up to the 1% at the top of the pyramid.
- Rushkoff suggests universal basic assets instead, so that the people at the bottom of the pyramid can own some means of production and participate in the profits of mega-rich companies.
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