Elucidating energy shifts in optical tweezers

A small piece of paper sticks to an electrically charged plastic ruler. The principle of this simple classroom physics experiment is applied at the microscopic scale by so-called optical tweezers to get the likes of polystyrene ...

NASA satellite sees Sandra strengthening at sea

Cyclone 19P in the Southern Pacific Ocean was renamed Sandra today, March 8, as NASA's Aqua satellite captured infrared data on the storm that indicated it would continue to strengthen. Residents of New Caledonia should prepare ...

NASA satellites see wide-eyed Cyclone Haruna

Cyclone Haruna strengthened into a cyclone and quickly developed an eye that became apparent on visible and infrared imagery from NASA's Aqua satellite. NASA's TRMM satellite analyzed Haruna's heavy rainfall, and NASA and ...

NASA to launch ocean wind monitor to space station

(Phys.org)—In a clever reuse of hardware originally built to test parts of NASA's QuikScat satellite, the agency will launch the ISS-RapidScat instrument to the International Space Station in 2014 to measure ocean-surface ...

Study finds severe climate jeopardizing Amazon forest

(Phys.org)—An area of the Amazon rainforest twice the size of California continues to suffer from the effects of a megadrought that began in 2005, finds a new NASA-led study. These results, together with observed recurrences ...

NASA's TRMM satellite sees birth of Arabian Sea cyclone

NASA's TRMM satellite measured rainfall and towering clouds within the Arabian Sea's first tropical cyclone of the season as it passed overhead from space. Meanwhile, the infrared AIRS instrument aboard NASA's Aqua satellite ...

NASA sees some strength in Tropical Storm Patty's brief debut

Tropical Depression 16 formed on Oct. 11 and by 5 p.m. EDT that same day, it strengthened into Tropical Storm Patty. NASA's TRMM and Terra satellite's captured imagery on Patty's rainfall intensity and cloud heights, both ...

NASA notes Nadine now no more

Twenty-three days after Nadine was born, the tropical cyclone's life came to an end in the northeastern Atlantic Ocean. NASA's TRMM satellite caught a look at the fading Nadine one final time on Oct. 3 before it dissipated.

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