The Secret to Soap Bubbles' Iridescent Rainbows

The interaction of light reflecting off the front and back of a soap bubble gives it its colorful appearance. A similar effect explains color-shifting cars.

from Wired http://bit.ly/2Xh2Va0

Comments

Post a Comment

Popular posts from this blog

US targets waiver letting California steer emissions limits

SAN FRANCISCO (AP) -- Scott Pruitt, administrator of the U.S. Environmental Protection Agency, turned his sights this week on a nearly half-century-old federal waiver that allows California to pursue its own, tough tailpipe emission standards, and allows other states to opt in to California's standards rather than federal ones if they choose.... from AP Top Science News at 7:12 p.m. EDT https://ift.tt/2q15NJy via IFTTT
Read more

Hedge Fund Sentiment Is Stagnant On CNX Resources Corporation (CNX)

Image
The elite funds run by legendary investors such as David Tepper and Dan Loeb make hundreds of millions of dollars for themselves and their investors by spending enormous resources doing research on small cap stocks that big investment banks don't follow. Because of their pay structures, they have strong incentives to do the research necessary […] from Yahoo News - Latest News & Headlines https://ift.tt/2WnUslz via IFTTT
Read more

China warns of 'severe threats' to global order at G20

Image
China warned on Friday that protectionism and "bullying" were threatening the world order as President Xi Jinping met other leaders at the G20 summit ahead of high-stakes talks with Donald Trump. Xi met three of his African counterparts Friday morning on the sidelines of the G20 summit of major world economies, which opened in Osaka amid the US-China trade war, geopolitical tensions, and divisions over climate change. "All leaders in the meeting stressed that unilateralism, protectionism, and bullying practices are on the rise, posing severe threats to economic globalisation and international order, and severe challenges to the external environment of developing countries," Chinese foreign ministry official Dai Bing told reporters. from Yahoo News - Latest News & Headlines https://ift.tt/2X57xiJ
Read more