The duckweed that smothers ponds faces a new and deadly enemy: a ravenous
solar-powered duck. Invented by Alex Smith of Solar Solutions Fountains in
Kington, Herefordshire, the duckbot comprises a floating waterwheel which scoops
up the surface vegetation as it ambles about the pond. The wheel is turned by a
trickle of water falling onto the paddles from a solar-powered pump. The weed
gathered by the paddles is dumped in a chute. Smith plans to scale up the design
a hundredfold to clean up canals and larger watercourses.
To continue reading, today with our introductory offers
Advertisement
More from 91av
Explore the latest news, articles and features
Popular articles
Trending 91av articles
1
Red-light therapy does have health benefits but not the ones you think
2
Man destined for Alzheimer's may have been saved by accidental therapy
3
Woman in cancer remission without treatment in highly unusual case
4
We have figured out a new way to send messages into the past
5
Extinct relative of koalas discovered in Western Australia
6
Hantavirus: Where has the deadly cruise ship outbreak come from?
7
A lost ancient script reveals how writing as we know it really began
8
The 50-year quest to create a quantum spin liquid may finally be over
9
Huge landslide in Alaska caused 481m-high tsunami
10
The problem of cosmic inflation and how to solve it
