# 175: Science Highlights Daily | 2019-02-03

[quantumjump]

This is a curated articles about the latest discoveries in science and interesting articles tackling technology and society.

Mind-controlled robot lets you weld metal without using your hands: Donna Lu

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Car factories could one day use mind-controlled robotic welders to help keep machine operators at a safe distance

Rhinoceros beetles have weird mouth gears that help them chew: Michael Marshall

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Japanese rhinoceros beetles have a simple gearing mechanism that ensures their mouthparts move in synchrony and helps them chew tough bark

The Milky Way may be slowly devouring a hidden neighbouring galaxy: Leah Crane

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There is a huge stream of gas orbiting with our galactic neighbours, and it may come from a nearby unseen dwarf galaxy that is being consumed by the Milky Way

We’ve hacked the Curiosity rover to learn how mountains form on Mars: Leah Crane

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Hacking the Curiosity rover let researchers measure the density of the rocks it was driving over, revealing that Martian mountains may not form how we thought

Self-growing material could make muscles that become stronger with use: Donna Lu

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A self-growing hydrogel becomes stronger and larger with use and could one day help make robots with artificial muscles

Deep-sea mining could wreck the last unexplored ecosystem on Earth: Olive Heffernan

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As mining firms begin tests to pick up metal ores from the Pacific seabed, we need rules to protect this unusual ecosystem, says Olive Heffernan

Gum disease and Alzheimer’s: Your questions answered: Debora MacKenzie

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People are questioning a landmark study suggesting that a bacterium involved in gum disease may also cause Alzheimer's. Here's what you need to know about the study

So long, veganuary: Here’s how to consume consciously year round: P. K. Newby

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Cutting out meat and dairy products is a great way to save the world from your dinner plate, but there are many more, says P. K. Newby

We may finally know what causes Alzheimer’s – and how to stop it: Debora MacKenzie

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Evidence is growing that a bacteria involved in gum disease causes Alzheimer's, raising hopes over new kinds of treatments that are currently undergoing testing

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