51动漫

A small device shaped like Pac-Man can move on the surface of water and around obstacles without a motor. It could lead to the development of small robots for environmental monitoring of lakes and rivers.

Motorless ‘Pac Man’ bot surfs across water, avoiding objects

A small device shaped like Pac-Man can move on the surface of water and around obstacles without a motor

Sections of a timber wind turbine tower under construction

Environment

Should we build wind turbines from wood?

Mandatory Credit: Photo by JEROME FAVRE/EPA-EFE/Shutterstock (13641875g) Mainland Chinese students hold sheets of blank paper during a vigil for the victims of China's zero-COVID policy and the victims of the Urumqi fire at the University of Hong Kong in Hong Kong, China, 29 November 2022. Protests against China's strict COVID-19 restrictions have erupted in various cities including Beijing and Shanghai, triggered by a tower fire that killed 10 people in Xinjiang's capital, Urumqi. University students hold a vigil for the victims of China's zero-COVID policy, Hong Kong - 29 Nov 2022

Health

China’s failure to vaccinate makes giving up on zero covid a huge risk

Epilepsy video

Sponsored

Video: the future of epilepsy

A recreation of a Neanderthal man

Health

Antibiotics encoded in Neanderthal DNA could help us fight infections

Human sperm

Health

Sperm-blocking vaginal gel could be a reliable contraceptive method

Bacteria seen with an electron microscope

Environment

Microfibres that pollute the seas are floating homes for bacteria

A small device shaped like Pac-Man can move on the surface of water and around obstacles without a motor. It could lead to the development of small robots for environmental monitoring of lakes and rivers.

Technology

Plastic ‘Pac-Man’ moves using water ripples

Seed inspired glider

Bio-inspired glider collects data without leaving polluting e-waste

NASA's Jett3 Lunar analogue mission in the Arizona Desert

Artemis astronauts prepare for future moon missions in Arizona desert

Deep in the Arizona desert, astronauts are learning how to walk on the moon

Life

Long-haul flights: bad for the planet, necessary for global research

Environment

COP27 saw progress on climate reparations, but more action is needed

Space

Growing off-world diversity is making space for everyone

Life

COP15: What to expect at the biggest biodiversity summit in a decade