Science & TechnologyS


Sherlock

Skeleton of Cleopatra's Sister Discovered

Archeologists and forensic experts believe they have identified the skeleton of Cleopatra's younger sister, murdered more than 2,000 years ago on
the orders of the Egyptian queen.

The remains of Princess Arsinoe, put to death in 41BC on the orders of Cleopatra and her Roman lover Mark Antony to eliminate her as a rival, are the first relics of the Ptolemaic dynasty to be identified.

The breakthrough, by an Austrian team, has provided pointers to Cleopatra's true ethnicity. Scholars have long debated whether she was Greek or Macedonian like her ancestor the original Ptolemy, a Macedonian general who was made ruler of Egypt by Alexander the Great, or whether she was north African. Evidence obtained by studying the dimensions of Arsinoe's skull shows she had some of the characteristics of white Europeans, ancient Egyptians and black Africans, indicating that Cleopatra was probably of mixed race, too. They were daughters of Ptolemy XII by different wives.

Robot

Japan Launches New Fashion Robot For Catwalks

Kate Moss and Agyness Deyn have an ageless competitor now. Japanese researchers have launched a new fashion robot that will soon strut her stuff down a Tokyo catwalk.

Bug

Chernobyl 'shows insect decline'

chernobyl insect study
© unknownChernobyl is largely human-free but still contaminated with radiation
Two decades after the explosion at the Chernobyl nuclear power plant, radiation is still causing a reduction in the numbers of insects and spiders.

According to researchers working in the exclusion zone surrounding Chernobyl, there is a "strong signal of decline associated with the contamination".

The team found that bumblebees, butterflies, grasshoppers, dragonflies and spiders were affected.

They report their findings in the journal Biology Letters.

Professor Timothy Mousseau from the University of South Carolina, US, and Dr Anders Moller from the University of Paris-Sud worked together on the project.

The two researchers previously published findings that low-level radiation in the area has a negative impact on bird populations.

Frog

Smallest known North American dinosaur found

Canadian researchers say they have discovered the smallest known North American dinosaur, a carnivore that roamed areas of the continent 75 million years ago and weighed less than most modern-day house cats.

tiny us dino
© University of Calgary/Nick LongrichNick Longrich found the dinosaur's bones in storage at a museum and decided to analyze them.
Hesperonychus elizabethae, a 4.4-pound (2-kilogram) creature with razor-like claws, ran through the swamps and forests of southeastern Alberta, Canada, during the late Cretaceous period, the researchers said.

The diminutive dinosaur likely hunted insects, small mammals and other prey, perhaps even baby dinosaurs, said Nick Longrich, a paleontology research associate in the University of Calgary's Department of Biological Sciences.

"It's basically a predator of small things," Longrich said.

Magnify

Thousands of 6,000-year old cave paintings found in Peru's Amazon region

More than 10,000 cave paintings - dating back to more than 6,000 years - were discovered by Peruvian archaeologist Quirino Olivera in the Andean country's jungle department of Amazonas, daily El Comercio reported.

Hidden by the region's lush vegetation for centuries, the paintings were discovered in caves located near the village of Tambolic, in the district of Jamalca, province of Utcubamba.

Laptop

Group asks U.S. FTC to probe Google privacy safety

San Francisco - An online privacy group called on Tuesday for government regulators to investigate the adequacy of Google Inc's security safeguards after the company inadvertently released consumers' private information this month.

In a complaint filed with the U.S. Federal Trade Commission on Tuesday, the Electronic Privacy Information Center faults Google's practices relating to its so-called cloud computing services, which store user-generated documents and other personal information on Google servers instead of on an individual's personal computer.

Telescope

Aurora Blarneyalis

Image
© Thomas Bojer Eltorpbut

Green auroras over Greenland? It must be St. Patrick's Day. The celebration began last night with this display over Nuuk.

"They were not the most powerful auroras," says photographer Thomas Bojer Eltorpbut, "but it was such a beautiful display." He took the picture by opening the shutter of his Nikon D3 for 90 seconds at ISO 1600.

Telescope

Rainbow Planet

Rainbow Venus
© Sadegh Ghomizadeh

Something special is happening to Venus. The brightest of all planets is hanging low in the western sky at sunset, and if you look at it with a backyard telescope, you'll see that it is a slender 4% crescent. But that's not the special part.

What's special is, Venus looks like a rainbow.

Meteor

Small Asteroid Buzzes Earth Tonight‏

Newly-discovered asteroid 2009 FH is flying past Earth tonight only 85,000 km away. That's about twice the altitude of a geosynchronous communications satellite. Advanced amateur astronomers in North America can photograph the 20-meter-wide space rock racing through the constellation Gemini after sunset on March 17th. It should be about as bright as a 14th magnitude star. [ephemeris] [3D orbit]

Info

'Consciousness signature' discovered spanning the brain

Image
© Harry Sieplinga / HMS Images / The Image BankBrain scans have long been used to try to find the "seat of consciousness" in the brain

Electrodes implanted in the brains of people with epilepsy might have resolved an ancient question about consciousness.

Signals from the electrodes seem to show that consciousness arises from the coordinated activity of the entire brain. The signals also take us closer to finding an objective "consciousness signature" that could be used to probe the process in animals and people with brain damage without inserting electrodes.

Previously it wasn't clear whether a dedicated brain area, or "seat of consciousness", was responsible for guiding our subjective view of the world, or whether consciousness was the result of concerted activity across the whole brain.

Probing the process has been a challenge, as non-invasive techniques such as magnetic resonance imaging and EEG give either spatial or temporal information but not both. The best way to get both simultaneously is to implant electrodes deep inside the skull, but it is difficult to justify this in healthy people for ethical reasons.