Tuesday, October 30, 2012
Monday, October 29, 2012
feed on tiny krill like a whale by filtering them through specialized teeth, allowing this species to feed from both the top and the bottom of the Antarctic food web.
Wednesday, October 24, 2012
magnetic poles reversed and then reversed again relatively quickly about 41,000 years ago, with the process that normally takes millennia completing its cycle in only about 200 years and during which the magnetic field strength was only one-twentieth what it is today.
Monday, October 22, 2012
impact-echo testing, engineers have developed a new method to analyze and evaluate the structural stability of a bridge deck based on the acoustic footprint generated by droplets of water striking the surface.
Thursday, October 18, 2012
more accurate standard for radiocarbon dating.
Wednesday, October 17, 2012
closest possible planet outside our own solar system.
Tuesday, October 16, 2012
first new source of cosmic rays 100 years after their first discovery, the new low-energy type originating not from the explosion of supernovae but from the Arches cluster with the particles accelerated by the shock wave of the young stars moving at around 700,000 km/h.
Wednesday, October 10, 2012
Tuesday, October 9, 2012
slight mechanical movements to trigger the chemical release of a signal rather than an electrical action potential.
Monday, October 8, 2012
spider attack on a parasitic wasp caught in its web, the first and only evidence of such an interaction between these types of species.
Saturday, October 6, 2012
can dissolve in water and inside the human body, enabling the design of medical implants that do not require surgical removal.
Friday, October 5, 2012
significant amount of carbon stored in lakes and rivers -- often thousands of years old -- is still being released into the atmosphere, challenging current models of long-term carbon storage in aquatic systems and its dynamics in modern climatology.
Thursday, October 4, 2012
more complex than modern grazers such as cows and horses with an amazing capacity to chew tough and abrasive plant matter.
Wednesday, October 3, 2012
pain-killing compounds called mambalgins from the venom of Africa's black mamba snake that are as strong as some opiates used today but without the common dangerous side-effects.
Tuesday, October 2, 2012
Monday, October 1, 2012
unexpected cold layer in Venus' atmosphere 77 miles above the planet's surface with temperatures reaching −283°F, much colder than anything in Earth's atmosphere and able to form carbon dioxide ice.