BBC Science Focus

Pain- free pricks

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“This is the first time we’ve seen such drastic changes in light emitted from an exoplanet, which is particular­ly remarkable for a super Earth,” said researcher Nikku Madhusudha­n. “No signature of thermal emissions or surface activity has ever been detected for any other super Earth.”

Researcher­s believe this drastic change in thermal emissions could be due to intense volcanic activity on the surface spewing out huge volumes of gas and dust wh whichhich sometimes blanket the planet, making it look like a greatg great ball of ash ash.

“When we first identified this planet, the measuremen­ts supported a carbon-rich model,” said Madhusudha­n. “But now we’re finding that those measuremen­ts are changing over time. The most recent observatio­ns open up a new chapter in our ability to study the conditions on rocky exoplanets using both current and next-generation large telescopes.” THOSE WHO DREAD the doctor’sd needle may soon be in for a nice surprise. Students in the USU have created a device that rapidly numbs the skin, reducing the pain of a an injection. The three first-year students at Rice University have called their gizmo ‘Comfortabl­y Numb’.

It’s a 3D-printed, single-use device consisting of two sealed chambers containing ammonium nitrate and water. When the device is twisted, the contents of the two chambers come into contact, triggering an endothermi­c (heat-absorbing) reaction. Placing the metal device against the patient’s skin produces a numbing effect within 60 seconds, after which they can receive a shot painlessly. The invention will be useful for those who are about to receive an injection in a sensitive area. Patent applicatio­n underway

 ??  ?? 55 CancriCanc­rri e is so volcanic that at times it ‘ disappears’ behind
an enenvelopi­ngnvelopin­g cloak of ash For those terrified of injections, relief may be on the way
55 CancriCanc­rri e is so volcanic that at times it ‘ disappears’ behind an enenvelopi­ngnvelopin­g cloak of ash For those terrified of injections, relief may be on the way

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