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why you can hear gravitational waves when things collide in the universe

  • Written by: David Blair, Director, WA Node of the ARC Centre of Excellence for Gravitational Wave Discovery, formerly the Australian International Gravitational Research Centre, University of Western Australia
why you can hear gravitational waves when things collide in the universens gw art

Whenever there’s an announcement of a new discovery of gravitational waves there is usually an accompanying sound, such as this:

The sound of first gravitational waves detected.

We have only detected half a dozen signals so far. The first five are black holes whose chirp signal is extremely brief. The last one is the sound of a pair...

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The origins of Pama-Nyungan, Australia's largest family of Aboriginal languages

  • Written by: Claire Bowern, Professor of Linguistics, Yale University
The origins of Pama-Nyungan, Australia's largest family of Aboriginal languagesThe spread of Pama-Nyungan was likely influenced by climate. Shutterstock.com

The approximately 400 languages of Aboriginal Australia can be grouped into 27 different families. To put that diversity in context, Europe has just four language families, Indo-European, Basque, Finno-Ugric and Semitic, with Indo-European encompassing such languages as...

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More of us are drinking recycled sewage water than most people realise

  • Written by: Ian Wright, Senior Lecturer in Environmental Science, Western Sydney University
More of us are drinking recycled sewage water than most people realiseThe Hawkesbury's waters look beautifully natural but treated sewage makes up to 20% of the river flow where the North Richmond Filtration Plant draws its water.Karl Baron/flickr, CC BY

The world is watching as Cape Town’s water crisis approaches “Day Zero”. Questions are being asked about which other cities could be at risk and wha...

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Rise in protest votes sounds warning bell for major parties

  • Written by: Danielle Wood, Program Director, Budget Policy and Institutions, Grattan Institute
Rise in protest votes sounds warning bell for major partiesMinor parties led by high-profile candidates such as Nick Xenophon are particularly appealing away from the big cities.AAP/Russell Millard

Protest politics is on the rise in Australia. At the 2016 federal election, votes for minor parties hit their highest level since 1949. More than one in four Australians voted for someone other than the...

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More Articles …

  1. Australia can't afford to forget smaller businesses when negotiating trade deals
  2. How protons can power our future energy needs
  3. Technology and regulation must work in concert to combat hate speech online
  4. Voice assistants will have to build trust before we're comfortable with them tracking us
  5. Why aren't birds pulled down by gravity while they're flying?
  6. The greatest moral challenge of our time? It's how we think about morality itself
  7. New online tool can predict your melanoma risk
  8. Ivory up in flames, but who really noticed? How messages on elephant poaching might be missed
  9. France has a unique approach to regenerating inner cities – what can we learn from its success?
  10. Climate change and looters threaten the archaeology of Mongolia
  11. Five things parents can do every day to help develop STEM skills from a young age
  12. How companies can make more money by allowing you to 'pay as you want'
  13. South Australian 'soft' voters inclined to change their government but not impressed with the alternative
  14. 'Soft' voters scathing about Turnbull's handling of sex in politics: focus group research
  15. Yes, too much sugar is bad for our health – here's what the science says
  16. going beyond our backyard to protect the reef
  17. Take it from us - here's what we need in an ambassador for women in science
  18. Michelle Grattan on the battlegrounds of South Australia, Batman and Adani
  19. Labor leading in Victoria and tied in New South Wales; populists dominate in Italy
  20. Why Trump's tariffs will have little impact on Australia and a trade war is unlikely
  21. how to stop your bathers flooding the oceans with plastic
  22. Child protection report lacks crucial national detail on abuse in out-of-home care
  23. We need to support more men to become primary teachers
  24. The one thing holding back an RBA rate cut
  25. There’s more to the compact city than getting dense
  26. Servant or partner? The role of expertise and knowledge in democracy
  27. cocaine, the glamour drug of the ’70s, is making a comeback
  28. who was Mary Magdalene? Debunking the myth of the penitent prostitute
  29. Bill Shorten is buffeted by the politics of Adani
  30. Joan of Arc, our one true superhero
  31. Brett Dean's Hamlet demonstrates the power of opera as an art form
  32. Leopards in a city park in India may help lower human injuries and deaths from stray dog bites
  33. how the language you speak influences your willingness to take climate action
  34. Enjoyment of reading, not mechanics of reading, can improve literacy for boys
  35. RBA research shows that zoning restrictions are driving up housing prices
  36. If sugar is so bad for us, why is the sugar in fruit OK?
  37. The off-topic Conversation #155
  38. Using 'she' and 'he' reinforces gender roles and discrimination of women
  39. The NRL’s unrivalled equality means back-to-back premierships are very rare
  40. Why aren't Australia's environment laws preventing widespread land clearing?
  41. To achieve gender equality, we must first tackle our unconscious biases
  42. The buzz from your smartphone won't stop mosquito bites
  43. Why social media are more like chocolate than cigarettes
  44. Sexism needs to be challenged in schools, not just workplaces
  45. What writers and publishers must learn from the Deadly Woman Blues fiasco
  46. wildness, art and biophilic design
  47. How the government can pay for its proposed company tax cuts
  48. the "X factor" in the South Australian election
  49. Australia and Timor Leste settle maritime boundary after 45 years of bickering
  50. why supermarkets are moving away from price

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