女生小视频

Upside drone

Why do military drones look so different from military aircraft? For example, their tail fins...

Why do military drones look so different from military aircraft? For example, their tail fins point downwards.

Martin McCann, Worcester, UK

We pay 拢25 for every answer published in New 女生小视频. To answer this question 鈥� or ask a new one 鈥� visit newscientist.com/lastword. Terms and conditions apply.

This article appeared in print under the headline 鈥淯pside drone鈥�

Topics: Last Word

More from New 女生小视频

Explore the latest news, articles and features

An illustration of the the varicella zoster virus, which causes chickenpox and shingles

Health

Shingles vaccine may lower risk of stroke and heart failure

News

Health

Workout patch delivers some of the benefits of exercise with no exertion

News

Life

See the stunning contenders for the Wildlife Photographer of the Year

Regulars

Technology

The engineer racing to run the world鈥檚 most dangerous algorithm

Features

Popular articles

Trending New 女生小视频 articles

The engineer racing to run the world鈥檚 most dangerous algorithm

How wakeful rest may boost brain power in a manner similar to sleep

Plastic bottles can be turned into edible, vanilla-flavour cookies

Why banishing irrational numbers could trigger a revolution in quantum theory

100-year-old assumption about the universe may soon be overturned

How much water do you really need to drink to keep your brain sharp?

Risk of dementia could be halved with use of metformin

From back pain to cancer, how the interstitium could transform medicine

See the stunning contenders for the Wildlife Photographer of the Year

Will muscle-boosting meds be the next big thing after GLP-1 drugs?