Science

Commutativity

7th October 2019 OldTrout 2551 Comments

A binary operation is said to commute if the order of the operands does not alter the result. In the real numbers, , the following commutative laws hold : for all for all Although these [more…]

Confronting The Climate Emergency, Part 7

12th September 2019 James Dalton 4491 Comments

It is six months since the Climate Emergency was declared in the Holme Valley and the variation in temperature I have experienced in this time has been wide – in excess of a 30oC range. [more…]

Going Round in Circles

2nd September 2019 OldTrout 5141 Comments

Or : Multiplying by . The beginning of complex numbers is often attributed to Cardano (1501 – 1576). Complex numbers provide a solution to the equation . They are an extension of the number system [more…]

Confronting The Climate Emergency, Part 5

21st August 2019 James Dalton 3757 Comments

The fourth meeting of the Holme Valley Parish Council Climate Emergency Steering Group [HVPCCESG] took place on 10/7/19. Unfortunately I was unable to attend this rearranged meeting and sent my apologies. Interesting facts: Carbon dioxide [more…]

Confronting The Climate Emergency – Part 4

13th August 2019 James Dalton 3905 Comments

Some Interesting facts: Carbon Dioxide is a trace gas and currently accounts for approximately 405ppm (parts per million) or approx. 0.04% of the earth’s atmosphere. 200 years ago in 1820, it is estimated (ice core [more…]

Confronting The Climate Emergency, Part 3

7th August 2019 James Dalton 3447 Comments

The third meeting of the Holme Valley Parish Council Climate Emergency Steering Group [HVPCCESG] took place on 18/6/19. Interesting facts: On researching the relative merits of solar power and nuclear power with respect to waste [more…]

Confronting The Climate Emergency, Part 2

25th June 2019 James Dalton 2559 Comments

Tasked with heading the challenge of confronting the declared CLIMATE EMERGENCY, Councillors and politicians throughout the land and all over the world are sounding the alarm bells and preaching to the people: WE MUST ACT [more…]

Big Shed

19th June 2019 Sweaty Dave 3970 Comments

In my last piece I talked through the attempt to refurb a lawnmower, replacing the rusted body, which is now back to happily chewing all it crosses, without spitting bits out at random. As long [more…]

Confronting The Climate Emergency, Part 1

18th June 2019 James Dalton 2559 Comments

I write this on the eve of my first meeting of the Holme Valley Parish Council Climate Emergency Steering Group [HVPCCESG], a meeting I shall be attending as the newly elected Councillor for the Netherthong [more…]