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Readers!

 

My July fund-raising campaign to celebrate the fifteenth anniversary since I began Behind the Black is now over. I want to thank all those who so generously donated or subscribed, especially those who have become regular supporters. I can't do this without your help. I also find it increasingly hard to express how much your support means to me. God bless you all!

 

The donations during this year's campaign were sadly less than previous years, but for this I blame myself. I am tired of begging for money, and so I put up the campaign announcement at the start of the month but had no desire to update it weekly to encourage more donations, as I have done in past years. This lack of begging likely contributed to the drop in donations.

 

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Scientists have found that bumblebees have the capability of flying at altitudes higher than the top of Mount Everest.

Scientists have found that bumblebees have the capability of flying at altitudes higher than the top of Mount Everest.

In a study published today in Biology Letters, two zoologists, Michael Dillon, now at the University of Wyoming in Laramie, and Robert Dudley of the University of California, Berkeley, tested whether bumblebees’ vertical range was limited by aerodynamics and physiology. Working in the mountains of Sichuan, China, the duo caught five male bumblebees (Bombus impetuosus) foraging at 3,250 meters and placed them in a plexiglas chamber. Once the bees began to fly upwards, the pressure inside the chamber was reduced using a hand pump to simulate altitude increases in 500-meter intervals. All five bees could hover at air pressures equivalent to elevations of 7,400 meters; three could fly above 8,000 meters; and two got to above 9,000 meters.

If you read the entire article, you will notice that it completely ignores the false urban legend that bumblebees are aerodynamically unsound and shouldn’t be able to fly. Scientists have known for decades that it is false, but for some reason it keeps getting repeated.

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

2 comments

  • bumble bees are kind of like helicopters, they are so ugly that the ground repulses them, just kidding. they probably fly at the higher elevations because of less induced drag from a thinner atmosphere, less drag means less exertion. I never took the urban legend too seriously because I have seen bees fly, just because we don’t know too much about the mechanics of a bees flight and hovering dose not mean its not possible. carrying their own body weight in cargo is no mean feat, very impressive!

  • Hovering flight also takes up much more energy than forward flight, this ability to carry very heavy loads in hovering flight means that they also have a lot of endurance. nature always wins!

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