Killer asteroids abound. NASA is ready to do something about it
The Russia incident was a warning.
Astronomy
Nov 29, 2021
1
1049
News tagged with tractor
A spacecraft could use gravity to prevent a dangerous asteroid impact
The idea of avoiding asteroid impacts has featured prominently in the public's mind for decades—especially since the release of movies such as Deep Impact and Armageddon. But is using a nuclear explosion the best way to ...
Space Exploration
Oct 18, 2021
5
26
Crashing Chinese rocket highlights growing dangers of space debris
This weekend, a Chinese rocket booster, weighing nearly 23 tons, came rushing back to Earth after spending more than a week in space—the result of what some critics, including NASA Administrator Bill Nelson, have attributed ...
Space Exploration
May 13, 2021
0
12
Tractors can change farming in good ways and bad: lessons from four African countries
Agricultural mechanisation is on the rise in Africa, replacing hand hoes and animal traction across the continent. While around 80-90% of all farmers still rely on manual labour or draught animals, this is changing, driven ...
Environment
Dec 29, 2020
3
45
New tractor beam has potential to tame lightning
Lightning never strikes twice, so the saying goes, but new technology may allow us to control where it hits the ground, reducing the risk of catastrophic bushfires.
General Physics
Nov 11, 2020
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GPS isn't just for road trips anymore
When it comes to nifty farm gadgets and technology, there are many neat tools. Tractor guidance is definitely one of them, thanks to how it helps farmers better use their resources.
Environment
Jun 29, 2020
0
4
A remote control for everything small
Atoms, molecules or even living cells can be manipulated with light beams. At TU Wien a method was developed to revolutionize such "optical tweezers".
Optics & Photonics
Nov 19, 2019
0
75
Light-based 'tractor beam' assembles materials at the nanoscale
Modern construction is a precision endeavor. Builders must use components manufactured to meet specific standards—such as beams of a desired composition or rivets of a specific size. The building industry relies on manufacturers ...
Optics & Photonics
Nov 04, 2019
0
171
System will help planners identify, prioritize highway projects
A new prototype system that monitors the number and type of tractor-trailers moving through a region could help transportation planners identify and prioritize infrastructure projects and increase operational efficiency.
Engineering
Feb 11, 2019
0
4
New scientific concept for a Star Wars-like tractor beam
Physicists from ITMO University have developed a model of an optical tractor beam to capture particles based on new artificial materials. Such a beam is capable of moving particles or cells towards the radiation source. The ...
General Physics
Nov 27, 2018
1
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