Astronomers are worried by a satellite brighter than most stars
In this episode:00:45 A bright satellite is concerning researchersSatellites reflect sunlight down to Earth, and some do so with such intensity it risks obscuring astronomers' observations from ground-based telescopes. A paper in Nature suggests that the telecommunications satellite called BlueWalker 3 at times outshines most stars visible from Earth. Astronomers worry about the increasing number of such bright satellites making astronomy more difficult, and so the team suggest that future launches should undergo impact assessments.Research article: Nandakumar et al.Nature News: Huge new satellite outshines nearly every st...
Source: Nature Podcast - October 4, 2023 Category: Science Authors: Springer Nature Limited Source Type: podcasts
Christmas 2012: The speed bump test
We know that speed bumps have an important public health role, but a Christmas BMJ paper shows they're also clinically useful, and can help diagnose appendicitis. Helen Ashdown, academic clinical fellow in general practice, University of Oxford, and Mike Puttick, consultant surgeon, Stoke Mandeville Hospital, explain.
And want to know how many carrots you need to eat to balance out that festive champagne? David Spiegelhalter, Winton professor for the public understanding of risk, University of Cambridge, tells us how to work it out. (Source: The BMJ Podcast)
Source: The BMJ Podcast - August 27, 2013 Category: General Medicine Authors: BMJ Group Source Type: podcasts
