All publications of James Brown . Leeds , United Kingdom

Publications
youtube-poster

English scientists have taught drones to fly in the dark

Have you ever wondered how mosquitoes fly in the dark? And why don't they stumble upon trees and walls? After all, the organs of vision or echolocation, like bats, these insects of the diptera do not use. Researchers at the University of Leeds in the UK understood the mechanism of “night vision” of mosquitoes, calling it an “aerodynamic image,” Science writes.


Insects in the dark use streams of air created by the flapping of their own wings. The jets of air change pressure and speed when an obstacle appears in front, and the mosquito feels these changes thanks to Johnston's organ - a set of receptors at the base of the “antennas” on the head. The maximum distance that a mosquito can “feel” is about 20 lengths of its wings. It was previously believed that this spatial gap is smaller.


Scientists have created a mechanical analog of the mechanism - a set of probes and sensors that record pressure drops. The development is inexpensive and reliable, it can be used on drones. The tests of the new system fixed to the drone were successful, the aircraft detected obstacles in the dark and circled them.

Show more
0
27
https://avalanches.com/gb/leeds_england_will_allow_meetings_in_parks_and_sports_games241440_11_05_2020

England will allow meetings in parks and sports games

“Boris Johnson announced a“contingent plan ” for opening a society after quarantine, which from this Wednesday will allow the inhabitants of England to spend more time on the street. They outline to permit residents to go out without time limits — for physical training, relaxing in parks and sports (the latter only with those who live together), ” the massage said.


Also, citizens who do not live together will be permitted to meet, provided that it will be in the parks and in compliance with 2 meters of the distance. Workers who, by the nature of their work, cannot work from home will be able to return to work. But the rest is asked to keep on to work remotely. People are asked, as before, not to leave home unnecessarily and to avoid travel by public transport.

While this is a preliminary plan, the final decision should appear before the end of Monday.

Show more
0
25
https://avalanches.com/gb/leeds__plans_set_to_ramp_up_coronavirus_testing_in_leeds_uk_government_is_p188561_01_05_2020

Plans set to ramp up coronavirus testing in Leeds.

UK government is planning to increase the number of testing in Leeds with new drive-thru testing centers at Temple Green Park and Ride. The plans are set to conduct at least 1,000 tests a day at this center. These testing centers have been opened to test more and more workers in the city. Leeds City Council has reported that over 57,000 health workers will be assigned to expand testing at this drive-thru center. Mobile testing units and kits will be sent to the center to ramp up coronavirus testing.

The government has announced that anyone above 65 and key workers showing any symptoms of COVID-19 can take the test at this center. Currently, 1,300 cases have been confirmed of coronavirus along with 358 fatalities between March 27 and April 28.

Show more
0
26
Show more