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53 things you never knew about OpenLearn
Education & Development

53 things you never knew about OpenLearn

...sanding and painting benches, digging a path and gardening. You can find out more about volunteering in this badged free course, Introducing the Voluntary Sector. Like most of the UK, the OpenLearn team are BIG fans of The Great British Bake Off but we also enjoy eating healthily - take a look at this course, The science of nutrition and healthy eating. We’re potty...
John Napier
Science, Maths & Technology

John Napier

...sand-reckoner, long before, Archimedes proved a similar result for any geometric progression. So the idea that addition in an arithmetic series parallels multiplication in a geometric one was not completely unfamiliar. Nor, indeed, was the notion of reaching the result of a multiplication by means of an addition. For this was quite explicit in trigonometric formulae...
Level 2: Intermediate 3 hrs
Understanding water quality
Nature & Environment

Understanding water quality

...Aluminium 0.2 Ammonium 0.5 Arsenic 10 Benzene 1 Cadmium 5 Calcium 250 Chloride 250 Copper 2 Cyanide 50 Fluoride 1.5 Iron 0.2 Lead 10 Mercury 1 Nitrate 50 pesticides, individual 0.1 pesticides, total 0.5 Sodium 200 Sulphate 250 Other parameters pH range 6.5-9.5 Coliforms none Clostridium none The full standards include many other substances not listed here. 1 mg 1-1= 1000...
Level 2: Intermediate 10 hrs
The UK votes out: Instant reaction
Society, Politics & Law

The UK votes out: Instant reaction

...cast a huge shadow over his leadership. The winners, Michael Gove and Boris Johnson will no doubt be basking in their success, however they should be cautious about inheriting a chaotic political, economic, and constitutional situation. Indeed, the pound is going through the floor, and the SNP and Sinn Fein are talking about referendums in Scotland and Northern Ireland,...
The Lee Jeans Occupation, Greenock, 1981
Society, Politics & Law

The Lee Jeans Occupation, Greenock, 1981

...cast among the workers; 97 per cent voted in favour of continuing the dispute. Despite recognising the action, the union remained less than supportive of the sit-in. Helen was ‘summoned’ to London to speak with General Secretary Alec Smith. He offered a caravan to allow them to end the occupation of the plant, and picket outside instead; Helen refused the offer. On 30...
Remembering the Timex Dundee struggles 1993
Society, Politics & Law

Remembering the Timex Dundee struggles 1993

...cast aside. And it was that sense of injustice, and a belief that workers should have dignity that brought us together as a support group. “We met weekly and our role was to support the strikers and the strike committee, those who were finding themselves with nothing as a result of being locked out of their workplace. We took our lead from the strike committee, and we...
Happy GeoWeek!
Nature & Environment

Happy GeoWeek!

...sand. But there's huge numbers of shells in here, forming bands as they go. Some are coarser-grained big bits, and some are much finer bits. But this would have been laid down probably in a sea. So, some of the shells that we have here, you'd even find on the beach if you went today. So you've got this beautiful big shell here, which is one that hasn't actually been...
Why are people upset about the Stonewall Movie?
History & The Arts

Why are people upset about the Stonewall Movie?

...cast transgender actors to play the roles of the transgender women. But that was not his goal. Emmerich himself says, "We are all the same in our struggle for acceptance." Many transgender people have yet to see any fruit from that tree. In our second short piece from en|Gendered's Helen Boyd explains why this feels like just another step in forty years of invisibility. :...