Meteor strike βa one in 50 year eventβ
Meteor strike βa one in fifty year eventβ; Bionic eye trials
Bees detect electric buzz from flowers; Why eating late is unhealthy β linking the bodyβs internal clock to obesity
Meteor strike βa one in fifty year eventβ
Less than 12 hours after discussing the possibilities of an asteroid impact in last weekβs Science In Action, people in Russia were actually bombarded. A meteoroid ripped across the sky, creating a sonic boom that was recorded around the world. Over 1200 people were injured as a result of the event. Bill Cook, head of the NASA Meteoroid Environments Office, was excited by this once in a lifetime event, but cautioned that the devastation could have been much greater.
Artificial retina offers sight
For those with degenerative eye diseases affecting the retina at the back of the eye, recent advances in bionic vision offer a ray of hope in a darkening existence. But will artificial retinas work for all patients who are suffering with this type of sight failure? Professor Eberhart Zrenner has examined the success of these implants with a number of his patients.
Bees detect electric buzz
Bees have evolved to sense the signals that flowers use to advertise their delicious nectar and pollen. Colour, scent, and even ultra violet are known indicators for incoming bees. Now Dominic Clarke, Professor Daniel Robert, and a team of researchers at the University of Bristol have discovered that buff-tailed bumblebees can sense a flowerβs electrical information too.
Why eating late is unhealthy
As greater demands are placed on us to work unusual hours, getting a balanced diet at regular times can get very difficult. Eating late at night is known to be an unhealthy habit, but we didnβt really know why. A study in mice reveals that animals metabolise sugars far less effectively if eaten when they should be asleep. Professor Carl Johnson explained why midnight snacking animals became obese and more prone to diabetes. So what do these findings mean for us?
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Meteor strike βa one in fifty year eventβ
What scientists have learnt from the Russian meteor strike
Duration: 04:00
Artificial retina offers sight
How successfully can implants restore sight for patients with degenerative eye disease?
Duration: 05:37
Bees detect electric buzz
Bumblebees use electrostatic information as they find flowers
Duration: 03:33
Why eating late is unhealthy
Mice are found to be resistant to metabolising food when inactive
Duration: 04:06
Broadcasts
- Thu 21 Feb 2013 19:32GMTΒιΆΉΤΌΕΔ World Service Online
- Fri 22 Feb 2013 00:32GMTΒιΆΉΤΌΕΔ World Service Online
- Fri 22 Feb 2013 04:32GMTΒιΆΉΤΌΕΔ World Service Online
- Fri 22 Feb 2013 11:32GMTΒιΆΉΤΌΕΔ World Service Online
- Sat 23 Feb 2013 22:32GMTΒιΆΉΤΌΕΔ World Service Online
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Science In Action
The ΒιΆΉΤΌΕΔ brings you all the week's science news.