Tala Ko

clipped from www.timesonline.co.uk
Hundreds of wallets were planted on the streets of Edinburgh by psychologists
last year.
nearly half of the 240 wallets were posted
back
Richard Wiseman, a psychologist, and his team inserted one of four photographs
behind a clear plastic window inside, showing either a smiling baby, a cute
puppy, a happy family or a contented elderly couple. Some wallets had no
image and some had charity papers inside.
When faced with the photograph of the baby people were far more likely to send
the wallet back, the study found. In fact, only one in ten were hard-hearted
enough not to do so. With no picture to tug at the emotions, just one in
seven were sent back.
The baby photograph wallets had the highest return rate, with 88 per cent of
the 40 being sent back. Next came the puppy, the family and the elderly
couple, with 53 per cent, 48 and 28 respectively. At 20 per cent and 15, the
charity card and control wallets had the lowest return rates.
  blog it
Advertisements
Nature can be cruel in a high school kind of way.
clipped from dsc.discovery.com
New research found that males can adjust the speed and effectiveness of their sperm by allocating more or less seminal fluid to copulations. The determining factor is whether the male finds the female attractive.
growing body of evidence that males throughout many promiscuous species in the animal kingdom, including humans, can mate with many females, but chances of fertilization are greater when the female is deemed to be attractive
  blog it
The article’s a year old, but it’s still cool.
clipped from www.mailonsunday.co.uk

Carved out in a barley field, this 150ft wide pattern is said to be a pictorial representation of the first ten digits of Pi, one of the most fundamental symbols in mathematics.

Crop circle

But whatever its origins, the experts say it is the most complex crop circle ever seen in Britain.

Then retired astrophysicist Mike Reed saw a photograph of it and made the mathematical link.

Banbury Castle Crop Circle
  blog it
clipped from www.nytimes.com
To understand what is really going on in a colony of ants or bees, Dr. Dornhaus, an assistant professor of ecology and evolutionary biology at the University of Arizona, tracks the little creatures individually — hence the paint and the numbers.

studies of whether the efficiency of ant society, based on a division of labor among ant specialists, is important to their success
briefly anesthetized 1,200 ants, one by one, and painted them using a single wire-size brush, with model airplane paint
two video cameras aiming down on an insect-size stage, she analyzed 300 hours of videotape of the ants in action
behavior more worthy of Aesop’s grasshopper than the proverbial industrious ants
fast ants took one to five minutes to perform a task
slow ants took more than an hour, and sometimes two
about 50 percent of the other ants do not do any work at all
small colonies may sometimes rely on a single hyperactive overachiever
  blog it
clipped from news.nationalgeographic.com


Traditional concrete is brittle and is easily fractured during an earthquake or by overuse.


By contrast, the new concrete composite can bend into a U-shape without breaking. When strained, the material forms hairline cracks, which auto-seal after a few days of light rain.


Dry material exposed by the cracks reacts with rainwater and carbon dioxide in the air to form “scars” of calcium carbonate, a strong compound found naturally in seashells, said study co-author Victor Li of the University of Michigan in Ann Arbor.

bendable concrete picture


Although it costs three times as much as traditional concrete, the material is a cost-saver in the long run, due to its reduced maintenance needs and energy demands, Li said.

  blog it
Man floating in space is awesome.
clipped from jstn.cc

Bruce McCandless II performing the first untethered spacewalk in 1984.  In this picture he’s 100 meters away from the shuttle, orbiting the Earth at a likely velocity of 7.7 km/s, with nothing but a jet pack to get back on board.
Bruce McCandless II performing the first untethered spacewalk in 1984. In this picture he’s 100 meters away from the shuttle, orbiting the Earth at a likely velocity of 7.7 km/s, with nothing but a jet pack to get back on board.
  blog it
clipped from www.grahamhancock.com

The city of Venice has announced a plan to utilize algae in a different way than we’re used to hearing about. The Italian city plans to produce 50 percent of its electricity needs from an algae-based power plant instead of fossil fuels.

The water-filled city is turning what has become a nuisance into a renewable energy resource. The city will be producing electricity from two types of algae that are brought in clinging to ships and regularly grow over the seaport. The algae will be cultivated and treated in laboratories to turn it into fuel. The fuel will then be used to power turbines in a new 40 MW power plant in the center of the city.

  blog it