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How do you know that what you know is true? That’s epistemology

how do you know that what you know is true? that’s epistemology
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How can you justify your knowledge? Epistemology has a few answers. How do you know what the weather will be like tomorrow? How do you know how old the Universe is? How do you know if you are thinking rationally? These and other questions of the...

Solar is now the most popular form of new electricity generation worldwide

solar is now the most popular form of new electricity generation worldwide
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Solar PV outstripped coal as the leading source of new electricity generation worldwide last year. Image/Lukas Coch Solar has become the world’s favourite new type of electricity generation, according to global data showing that more solar photovoltaic (PV) capacity is being installed than any other generation...

Like a TARDIS in your head, memory helps you travel through time

like a tardis in your head, memory helps you travel through time
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Climb on board - it won’t take a minute.  Dean Lewins/AAP Doctor Who’s TARDIS and human memory have a lot in common: both seem small, but are able to transport you through time to many possible worlds. We often assume that memory is primarily concerned with the...

Voluntary assisted dying is not a black-and-white issue for Christians – they can, in good faith, support it

voluntary assisted dying is not a black-and-white issue for christians – they can, in good faith, support it
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 Religious opponents of assisted dying laws most often appeal to the sanctity of human life. Father, into your hands I commend my spirit. According to at least one early and authoritative account, these were Jesus’s dying words. They are words that invite a question: what does it...

Downsizing cost trap awaits retirees – five reasons to be wary

downsizing cost trap awaits retirees – five reasons to be wary
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 Add up all the neglected costs of downsizing and retirees have good reason to be wary of making the move. It’s time to debunk the myth of zero housing costs in retirement if we want to understand why retirees resist downsizing. Retirees have at least...

Everyone falls for fake emails: lessons from cybersecurity summer school

everyone falls for fake emails: lessons from cybersecurity summer school
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Students infiltrate a host computer under the watchful eye of a mentor during a capture the flag exercise.  What do nuclear submarines, top secret military bases and private businesses have in common? They are all vulnerable to a simple slice of cheddar. This was the clear...

How Dr G.Yunupiŋu took Yolŋu culture to the world

how dr g.yunupiŋu took yolŋu culture to the world
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Dr Yunupiŋu’s music is steeped in the culture of his people,the Yolŋu of northeast Arnhem Land.Dan Himbrechts/AAP The music of Dr G. Yunupiŋu — who has died at the age of 46 from complications arising from a childhood illness — is steeped in the culture of...

Explainer: ‘solarpunk’, or how to be an optimistic radical

explainer: ‘solarpunk’, or how to be an optimistic radical
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Solarpunk imagines a sustainable future, and what it might be like to live in it. Punks (of the 70s and 80s kind) were not known for their optimism. Quite the opposite in fact. Raging against the establishment in various ways, there was “no future”...

When it comes to kids and social media, it’s not all bad news

when it comes to kids and social media, it’s not all bad news
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Parents should understand where the value is in social media so they can guide their kids to positive use. While we often hear about the negative impact social media has on children, the use of sites like Facebook, Twitter and Instagram is not a...

Buried tools and pigments tell a new history of humans in Australia for 65,000 years

buried tools and pigments tell a new history of humans in australia for 65,000 years
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The Madjedbebe excavation in the Northern Territory. Dominic O Brien/Gundjeihmi Aboriginal Corporation The question of when people first arrived in Australia has been the subject of lively debate among archaeologists, and one with important consequences for the global story of human evolution. Australia is the end...