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What is a gem? And why painite from Myanmar can fetch US$60,000 per carat

The first three Natural History Museum painites – including one in its natural state with rubies that had been sitting in their collection for years.

Originally published in The Conversation.

'Digital land rights': co-designing technologies with Indigenous Australians

Can digital technologies play a role in “closing the gap” in the 21st century?

Our research is focused on designing digital technologies that operate outside existing power structures. That means Indigenous leaders taking charge of the process – and consulting Indigenous end-users throughout.

Originally published in The Conversation.

Lessons to learn, despite another report on missing flight MH370 and still no explanation

The latest report into the disappearance of Malaysia Airlines flight MH370 says that investigations have failed to find any explanation as to why the aircraft went missing with 239 passengers and crew on board.

The 449-page main report (with additional appendices) from the Malaysian government builds on previous reports on the investigation into the missing aircraft but admits it is “limited by a significant lack of evidence”.

Originally published in The Conversation.

Sharing your #shopping on social media can damage your health and your wallet

Some young people are getting into credit card debt to achieve the ideal lives they see portrayed on social media. Shutterstock

Posting images on social media when we buy n

Originally published in The Conversation.

What if the companies that profit from your data had to pay you?

In the largest technology companies, the share of income going to labour is only about 5 to 15%.

Originally published in The Conversation.

Lessons for Australia in the EU's algorithmic price war that ripped off consumers

"Resale price maintenance" is illegal in most countries that have competition law. Shutterstock

The European Commission imposed fines of more than The Conversation.

Einstein’s theory of gravity tested by a star speeding past a supermassive black hole

An artist’s impression of the path of star S2 as it passes very close to the supermassive black hole at the centre of the Milky Way. The very strong gravitational field causes the colour of the star to shift slightly to the red. (Size and colour exaggerated for clarity.) ESO/M.

Originally published in The Conversation.

Let the light shine on super-fast wireless connections

Light can be used as a high-speed form of wireless communication. Shutterstock/ra2studio

We live in a world of wireless communications, from the early days of radio to new digital television, Wi-Fi and the latest 4G (soon to be 5G) connected smart devices.

Originally published in The Conversation.

How to grow crops on Mars if we are to live on the red planet

We can create the right kind of food plants to survive on Mars. Shutterstock/SergeyDV

Preparations are already underway for missions<

Originally published in The Conversation.

It's not about money: we asked catfish why they trick people online

Our likelihood of falling victim to catfish scams is increasing along with our screen time. Shutterstock

If you have engaged with internet culture at all in recent years, you

Originally published in The Conversation.