Rare sharks near Australia

A rare shark couple found for the first time off the coast of Australia may force a rethink of the species’ range.
 

   Two years ago, a sport fisherman caught a pair of rare sharks off Rottnest Island in Western Australia. The duo, a male shark about 3.3 feet (1 meter) long and a pregnant female about 3.9 feet (1.2 m) long,

What is Eukaryote?

A eukaryote is an organism whose cells contain complex structures enclosed within membranes. Eukaryotes may more formally be referred to as the taxon Eukarya or Eukaryota. The defining membrane-bound structure that sets eukaryotic cells apart from prokaryotic cells

Missing link in taste chain

Protein sends message to brain that tongue has detected sweet, bitter or umami flavor.
 

     When something leaves a bad taste in your mouth or a good one  you might blame a newly pinpointed protein. Experiments using mice have revealed a key player in the chain of events that lets the brain know what the tongue has tasted.

New radiation ring around earth

High above Earth’s surface float two rings of energetic charged particles, and for about four weeks in September, they were joined by a third. The temporary ring may have formed in response to a solar shock wave that passed by Earth, researchers report online February 28 in Science.
The discovery could force scientists to revisit decades of ideas about the structure of the Van

What is Sleeping Beauty transposon?

The Sleeping Beauty transposon system is a synthetic DNA transposon that was constructed to introduce precisely defined DNA sequences into the chromosomes of vertebrate animals for the purposes of introducing new traits and to discover new genes and their functions.

Scientists claim new glasses-free 3D for cellphone

Fancy watching a movie on your mobile phone, where figures leap out from the screen in 3D, rather as Princess Leia did in that scene from “Star Wars”?
That’s the claim made by US researchers, who on Wednesday reported they had made a display which gives a three-dimensional image that can be viewed without special glasses and is intended for cellphones, tablets and watches.
Unlike the holographic projection used in George Lucas’ movie fantasy, their small prototype display is flat and backlit.
It uses a technology called diffractive optics to give 3D images that can be viewed from multiple angles, even if the device is tilted.