Next Big Future: Phagraphene, a ‘relative’ of graphene, discovered

In graphene each carbon atom has three electrons that are bound to electrons in neighboring atoms, forming chemical bonds. The fourth electron of each atom is “delocalized” throughout the whole graphene sheet, which allows it to conduct electrical current. At the same time, the forbidden zone in the graphene has zero width. If you plot the electron energy and their location in graph form, you get a figure resembling an hour glass, i.e. two cones connected by vertices. These are known as Dirac cones.

Due to this unique condition, electrons in graphene behave very strangely: all of them have one and the same velocity (which is comparable to the velocity of light), and they possess no inertia. They appear to have no mass. And, according to the theory of relativity, particles traveling at the velocity of light must behave in this manner. The velocity of electrons in graphene is about 10 thousand kilometers a second (electron velocities in a typical conductor vary from centimeters up to hundreds of meters per second).

Phagraphene, discovered by Oganov and his colleagues through the use of the USPEX algorithm, as well as graphene, is a material where Dirac cones appear, and electrons behave similar to particles without mass.

Source: Next Big Future: Phagraphene, a ‘relative’ of graphene, discovered

Key radar fails on $1 billion NASA environmental satellite

How convenient… now a key piece of technology that could help substantiate or disprove the “global warming theory”, sudden quits working.

A key instrument on a $1 billion NASA satellite has failed, reducing scientists’ ability to capture data to measure the moisture in Earth’s soil in order to improve flood forecasting and monitor

Source: Key radar fails on $1 billion NASA environmental satellite

Farsnews

TEHRAN (FNA)- A senior commander of the Islamic Revolution Guards Corps (IRGC) said Wednesday that Iran will continue boosting its military preparedness until it takes down Israel and sets Palestine free.

Source: Farsnews

Scientists turn to aspirin to turbo-charge cancer immunotherapy

Giving cheap aspirin to cancer patients may turbo-charge the effectiveness of expensive new medicines that help their immune systems fight tumors, experiments on mice suggest.

Immunotherapy promises to revolutionize cancer care by offering a better, longer-lasting response with fewer adverse side effects than conventional treatment, but the new drugs do not work well in all cases.

Source: Scientists turn to aspirin to turbo-charge cancer immunotherapy