An insect like a wasp or a water strider can rest atop the water, held up by surface tension. This means that the cohesive force of the water molecules sticking to each other is stronger than the force of the bug being pushed down by gravity. This works because it spreads its weight out over a large surface area (like snowshoes). That creates a slight indentation in the top of the water, changing the direction that the light coming down is refracted and re-directing it slightly sideways (that’s where the bright halos around the dark areas come from). And what’s the absence of light?
As I’m sure nobody wants that guy up there crawling around in their pants, recent studies have shown that not only does shaving/waxing your “downtown city center” prevent the little bastards from sticking with you, but because the trend of removing the carpet and “sticking with hardwood floors downstairs” is becoming more and more common, pubic lice are well on their way to becoming an endangered species. So there you go people, do it for science, and for everybody who is going to be visiting you down there as well.
Waning infestations of the bloodsuckers have been linked by doctors to pubic depilation, especially a technique popularized in the 1990s by a Manhattan salon run by seven Brazilian sisters. More than 80 percent of college students in the U.S. remove all or some of their pubic hair — part of a trend that’s increasing in western countries. In Australia, Sydney’s main sexual health clinic hasn’t seen a woman with pubic lice since 2008 and male cases have fallen 80 percent from about 100 a decade ago.
“It used to be extremely common; it’s now rarely seen,” said Basil Donovan, head of sexual health at the University of New South Wales’s Kirby Institute and a physician at the Sydney Sexual Health Centre. “Without doubt, it’s better grooming.”
The trend suggests an alternative way of stemming one of the globe’s most contagious sexually transmitted infections. Pubic lice are usually treated with topical insecticides, which once included toxic ones developed before and during World War 2. While they aren’t known to spread disease, itchy skin reactions and subsequent infections make pubic lice a hazardous pest.
Richard Feynman does his best to explain why science, in essence, is a form of art that may be much deeper and more philosophical than simple art itself. By no means am I calling art simple, but I will openly say I have much more respect and interest in scientists than artists, sorry artist friends.
Two stray dogs in New Zealand went through an extensive 5-week training program where they learned how to shift and steer a car. This is real life. They started out on little “doggie go-karts” then upgraded to modified Mini Coopers.
For the four-legged competitors, two months of hard work – and a fair few treats – ensured they were raring to get on the racetrack. So when the big day rolled around, the only ones likely to get hot under the collar were any bystanders who spotted a Mini hurtling towards them with a dog at the wheel. Two mutts made history yesterday by driving a car down a racetrack. Ten-month-old beardie cross Porter put his paws to the pedals first, steering the Mini down the straight and then turning a corner.
He was followed by Monty, an 18-month-old giant schnauzer cross, who completed the same feat. As the Mail reported last week, the pair – along with one-year-old beardie whippet cross Ginny – had been taking driving lessons, which began with them learning to steer a wooden cart pulled along on a string by their trainers.
In just eight weeks, they progressed to driving a real car – a modified Mini in which they sat on their haunches in the driver’s seat. Their front paws were on the steering wheel, while their back paws were on levers attached to the accelerator and the brake.
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