Scientists claim to have invented their own version of Doctor Who’s famous sonic screwdriver.
The Dundee University researchers have created a machine which uses ultrasound to lift and rotate a rubber disc floating in a cylinder of water.
It is said to be the first time ultrasound waves have been used to turn objects rather than simply push them.
The study could help make surgery using ultrasound techniques more precise, the physicists said.
Ultrasound waves could already be made to push objects and scientists believed they could also turn them - but the Dundee University team claims to have now proved it.
They used energy from an ultrasound array to form a beam that can both carry momentum to push away an object in its path and, by using a beam shaped like a helix or vortex, cause the object to rotate.
The results of the sonic screwdriver experiment will be published in the American Physical Society’s journal Physical Review Letters.
Karen and Matt shopping in Tesco.
Matt Smith (the Doctor), Karen Gillan (Amy Pond) and Arthur Darvill (Rory Williams) will be at Europe’s biggest shopping centre, the recently opened Westfield Stratford City, to sign copies of the newly released boxset and take part in a Q&A hosted by celebrity Doctor Who fan Jo Whiley.
Fans of Doctor Who can get the chance to see the stars of the show at Westfield Stratford City in two ways:
DOCTOR WHO SERIES 6 BOXSET SIGNING
WHERE: HMV Westfield Stratford City
WHEN: Matt Smith, Karen Gillan and Arthur Darvill will be signing copies of the Doctor Series 6 Boxset on Monday 21st November at 1.30pm
HOW TO GET TICKETS: 250 wristbands will be issued in HMV on a first-come, first-served basis on the day of the event from 8.30am
DOCTOR WHO Q&A WITH JO WHILEY
WHERE: The gallery area at Westfield Stratford City
WHEN: Matt Smith, Karen Gillan and Arthur Darvill will be in conversation with Jo Whiley between 4 and 4.30pm
i finally have the ability to get on tumblr again OH HOW I MISSED IT.
and i wanted to post this. yes, me and karen gillan. <3 because i fan girled. and cried and shook. and SHE ASKED ME IF I WAS OKAY i was literally shaking that much. karen gillan, you are perfection. she was so, so lovely. <33333333
Arthur, Matt, and Karen at the B&N NYC signing!