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Learn 40 hand signals used by the Aboriginal people of the Western Australian Desert
Languages

Learn 40 hand signals used by the Aboriginal people of the Western Australian Desert

...Open and First Languages Australia, also serves to promote the local language of Kukatja, a vulnerable language with less than 1,000 current speakers. In the video, for each hand sign that the women demonstrate there is the corresponding word in Kukatja along with its English-language translation. [A truck drives through the Big Sandy Desert] A truck drives across the...
How do fire controls harm biodiversity?
Nature & Environment

How do fire controls harm biodiversity?

...open vegetation, shrubs and grasses. The chemical processes that influence biodiversity by stimulating the sprouting and blossoming of plants, fruiting and seed dispersal, are regulated partly by fires. Griselda Durigan, forestry engineer at the Forestry Institute of São Paulo, and lead-author of the study, published in the journal Science Advances, says ceasefire...
Orbital forging
Science, Maths & Technology

Orbital forging

...Minimum practical forging thicknesses: conventional 5 mm orbital 2.5 mm Thickness tolerances on warm forging of steel at 700–800˚C are ±0.15 mm. Reduced oxide scale formation compared with hot forging applications. Orbital forging should produce 25% material savings and 50% reduced energy costs. See Also: Upset forging, Hot forging (open die) and Powder forging....
Do we have a right to die?
History & The Arts

Do we have a right to die?

...open? By disallowing physician-assisted death in this country, are all we doing is ensuring that it remains a privilege of the wealthy? What are your thoughts? Have your say using the comments section below: PLEASE NOTE: This discussion hub is intended for discussing the issues surrounding assisted suicide and the right to die, please do not use it for personal attacks on...
Britain's Billion Year Journey
Science, Maths & Technology

Britain's Billion Year Journey

...Open University's Science courses and qualifications Rodinia - the first supercontinent Between one billion and 620 million years ago, the continental crust that would one day be known as Britain formed tiny parts of a giant supercontinent called Rodinia (approximately 500 million years before the formation of Pangaea, a later supercontinent). All of Britain was south of...
Just six numbers
Science, Maths & Technology

Just six numbers

...which our Big Bang has evolved into the complex cosmos we inhabit, where on at least one planet creatures have evolved which are complicated enough to worry about it all. Martin Rees was explaining his theory to the Open University programme Final Frontier. To find out more about Martin Rees' six key numbers, take a look at Martin's book, which is called Just Six Numbers....
The Great Fall: A personal perspective, before and after
Languages

The Great Fall: A personal perspective, before and after

...Open University lecturer in Classical Studies. ...Like many millions I watched the breaching of the Berlin Wall on TV in 1989. I’ve had two direct and brief encounters with East Germany before and after this historic event. I’m descended from a C19th German Jewish émigré family of musicians but I first visited East Germany in 1982 when we went on a camping holiday,...
Noble gases
Science, Maths & Technology

Noble gases

...Open University Chemistry qualification. Video Text version Here are five of the six noble gases: helium, neon, argon, kypton and xeon. They're all colourless and transparent. Krypton and xeon form compounds only with difficulty. Helium, neon and argon don't form compounds at all. As we descend the group in the periodic table the atomic number and relative atomic mass...
Video 5 mins