Chemistry lesson for Scott Morrison (and a maffs lessun for Rory McGuire)


http://www.afr.com/opinion/letters-to-the-editor/letters-ceo-pay-and-super-20170214-guclff





Treasurer Scott Morrison's display of a lump of coal in Parliament last week could have benefited from more details. 

Assuming it weighed one kilogram, he could have explained that when burnt in a power station, it would produce two to 2.5 kilowatt hours of electricity, about 2.5 kilograms of carbon dioxide and up to seven grams each of sulphur dioxide and various oxides of nitrogen.

It would also produce about 50 grams of fly ash and a few micrograms of heavy metals, including mercury, and some radioactive materials.


Alternatively, if Mr Morrison had displayed one kilo of silicon, he could have explained that it could make about two square metres of solar panels and, at 20 per cent efficiency, with an average five hours of full sun a day, after two days they would have made more electricity than his piece of coal.

Then he could have pointed out that modern solar panels are guaranteed for up to 30 years, by which time they would have generated about 2000 kWh of electricity, or about 1000 times as much as his coal lump.

Rory McGuire

Pyrmont, NSW


The correction:

2.5KWh... in 2 days x approx 180 units of 2 days per annum, x 30 years = 13,500 Kwh



Comments

Post a Comment

Popular posts from this blog

Obama - is TOTALLY full of shit.

https://www.rt.com/usa/328707-obama-state-union-address/ US is 'most durable economy in the world' Obama in his last State Of The Union address. Published time: 13 Jan, 2016 02:30 President Barack Obama said his State of the Union address on Tuesday that America has “the strongest, most durable economy in the world” and called statements of economic decline "fiction." President Barack Obama’s last State of the Union address on Capitol Hill focused on the economy, technology, keeping America safe “without becoming the world’s policeman,” and how to make the country’s politics “the best in us, and not what’s worst.” President Obama said he wanted to talk about the next five years, ten years and beyond, “I want to focus on our future.” The first part of Obama speech referenced his administration’s achievement, unemployment cut in half, nearly 900,000 new jobs in the past six years, a strong economy.  Obama said anyone claiming America’s economy is in decline “i
Read more

HSBC Bank Australia Limited - a bunch of fucking arseholes.

Image
My Review of HSBC in Australia: Firstly - to make this whole article easier to digest... The first bit is me basically being insane - "This is a BAD place to be doing business with". The second bit is about the management of HSBC being an outright pack of cunts, involved in laundering squillions of cocaine $$$$$ from Mexico via Australia, and back to the USA.... If you find my being off my dial with insane frustration to be a bit hard to chew, just scroll down to the ~~~~~~~~~~ separator, to get to the NASTY Corporate Crap. OK now into my grizzle.... "HSBC - I want to find out why, payments into my account, as well as payements from my account take 2 days longer than other banks, and take 3 days to show up on my account - respectively. Call the head office, ask to be put through to some one in Australia, who was born here and speaks english, and they put me through to a foreign call centre, with some twat who wants to ask me all these questions, so that he can put it i
Read more

Lenovo and IBM - the Great Motherboard Replacement Scam

Image
I have one of the Lenovo G570 Laptops. And this is really BAD. The first one is that the management of Lenovo have done a deal with Microsoft to install an Operating System on the hard drive, and they claim that allocating a "special area" of the hard drive for recovery purposes, is a solution in case of "some kind of OS / Hard Drive problem - but they do not give you a copy of the OS on a DVD, to reinstall it, in case the OS crashed or a new HDD was needed etc.... This means that IF your operating system corrupts, your going to be facing a HUGE and BAD uphill battle to get a copy of YOUR operating system from Lenovo. No doing on the spot brain surgery on your own lap top by reinstalling the OS... No. This comes down to you not getting a 20c DVD with your operating system on it, Vs. hours fighting with idiots on the phone and days and or weeks waiting around for the DVD to arrive - if ever. With the amount of down time a non working laptop can cost you in losses, you may
Read more