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New Zealanders haven't been scanning in enough, and that contributed to the need for a full lockdown

Hannah Peters/Getty Images

Fast isolation of infected individuals is key to containing any outbreak of COVID-19, including the Delta variant, and contact tracing is a critical part of this process.


Originally published in The Conversation.

How machine learning is helping us fine-tune climate models to reach unprecedented detail

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From movie suggestions to self-driving vehicles, machine learning has revolutionised modern life. Experts are now using it to help solve one of humanity’s biggest problems: climate change.


Originally published in The Conversation.

How one simple rule change could curb online retailers' snooping on you

Rupixen.com/Unsplash, CC BY-SA

I spent last week studying the 26,000 words of privacy terms published by eBay and Amazon, trying to extract some straight answers, and co


Originally published in The Conversation.

How hackers can use message mirroring apps to see all your SMS texts — and bypass 2FA security

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It’s now well known that usernames and passwords aren’t enough to securely access online services.


Originally published in The Conversation.

How a simple crystal could help pave the way to full-scale quantum computing

Serwan Asaad/UNSW, Author provided

Vaccine and drug development, artificial intelligence, transport and logistics, climate science — these are all areas that stand to be transformed by the development of a full-scal


Originally published in The Conversation.

Cyberspace and outer space are new frontiers for national security, according to an expert report

What do cyberspace and outer space have in common? As we make clear in a new report to the Department of Defence, both are new frontiers for national security that blur traditional ideas about borders, sovereignty and defence strategy.


Originally published in The Conversation.

480 million-year-old fossil spores from Western Australia record how ancient plants spread to land

An irregular cluster of fossil spores. (Scale 10 micrometres.) Paul Strother, Author provided

When plants first ventured onto the land, evolving from freshwater-dwelling algae, more than 500 million years ago, they transformed the planet.


Originally published in The Conversation.

'How high above sea level am I?' If you've googled this, you're likely asking the wrong question — an expert explains

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The latest report from the United Nations Intergovernmental Panel on Climate Change is confronting. It finds global mean sea levels rose by about 20 centimetres between 1901 and 2018.


Originally published in The Conversation.

Lethal autonomous weapons and World War III: it's not too late to stop the rise of 'killer robots'

The STM Kargu attack drone. STM

Last year, according to a United Nations report published in March, Libyan government forces hunted down rebel forces using


Originally published in The Conversation.