Molecular ruler sets bacterial needle length
When a salmonella bacterium attacks a cell, it uses a nanoscopic needle to inject it with proteins to aid the infection. If the needle is too short, the cell won't be infected. Too long, and the needle breaks. ...
Scientists target mess from Christmas tree needles
The presents are unwrapped. The children's shrieks of delight are just a memory. Now it's time for another Yuletide tradition: cleaning up the needles that are falling off your Christmas tree.
Researchers peek at the forgotten component of light
(Phys.org) —Physicists from FOM institute AMOLF have for the first time simultaneously measured the electrical and magnetic fields of light. With such a measurement scientists can better understand the ...
Iranian telegraph operator, first to propose earthquake early warning system
In 1909, an Iranian telegraph operator living in the remote desert town of Kerman noticed an unusual movement of the magnetic needle of his telegraph instrument. While other telegraph operators during the late 1800s and early ...
The contribution of particulate matter to forest decline
Air pollution is related to forest decline and also appears to attack the protecting wax on tree leaves and needles. Bonn University scientists have now discovered a responsible mechanism: particulate matter ...
Nano-needles can force medicine into cells, even when they resist taking it
Physicist Pawel Sikorski and his group are making beds of nails on a miniature scale – a plate covered in nano-needles designed to puncture individual cells.
Slow pokes: Acupuncture helps hypothermic turtles
Two endangered sea turtles that are shells of their former selves after getting stranded on Cape Cod during a cold spell are getting some help easing back into the wild—from an acupuncturist.
A nano end for Christmas tree needles
As Twelfth Night approaches and the Christmas decorations start to look increasingly congruous as the last crumbs of cake are swept away and the remnants of the turkey have finally been consumed, there is the perennial question ...
On quills and needles: Prickly porcupine is a muse for future medical devices
Researchers from Brigham and Women's Hospital (BWH) have uncovered how North American porcupine quills easily penetrate tissues and why, once lodged in flesh, they are often difficult to remove.
Archaeologists uncover oldest prehistoric town in Europe
Laser-powered 'needle' promises pain-free injections
From annual flu shots to childhood immunizations, needle injections are among the least popular staples of medical care. Though various techniques have been developed in hopes of taking the "ouch" out of ...
Needle beam could eliminate signal loss in on-chip optics
(Phys.org)—An international, Harvard-led team of researchers have demonstrated a new type of light beam that propagates without spreading outwards, remaining very narrow and controlled along an unprecedented ...
Device may inject a variety of drugs without using needles
Getting a shot at the doctor’s office may become less painful in the not-too-distant future.
Nanorod-assembled order affects diffusion rate and direction
Some of the recent advancements in nanotechnology depend critically on how nanoparticles move and diffuse on a surface or in a fluid under non-ideal to extreme conditions. Georgia Tech has a team of researchers ...