Author: Andrew
Australia’s strong sun
Australia gets stronger sun than most developed countries. It’s an advantage that could help Australia become a renewable energy superpower, as each solar panel in Australia will generate more electricity. . This graph shows the range of latitudes of various landmasses; e.g., Antarctica extends from the South Pole at 90 degrees to about 63 degrees.…
How Heat Pumps Work
The example heat pump I show how heat pumps work using an example heat pump, including the refrigerant temperatures and pressures. This heat pump: The heat pump works by repeatedly moving the propane refrigerant through this anti-clockwise cycle of processes: Condensation:Propane at 16 atm condenses at 74°C, releasing heat to warm 50°C water. Throttling/Expansion Compression…
Warm is Not Cool: A Musical Protest
Musical Protests Against Inaction on Global Warming: 2016 & 2019. THE GLORIOUS RABBLE, withTHE HORNS OF INFINITE JUSTICE, andTHE DRUMLETARIAT. Stephen Taberner organised this protest. (As you might already be able to tell, on this page I have used lots of “dirty funky” words from Stephen’s event promotion.) Our long-awaited first public outing was on…
Glaciers in retreat:
Glaciers around the world are in retreat. Of the 250 alpine glaciers studied, the Taku Glacier in Alaska was the only one not retreating until, in 2019, it began to do so as well. At 1,500 metres thick, it’s one of the world’s thickest mountain glaciers, now retreating by up to 390 billion tons of…
Satirical song on climate denial
The “Denial Tango” by “Men with Day Jobs” from Sydney They say the planet’s warming, but I’m convinced it’s not. Last Tuesday it was rather cool. Today it’s not so hot. And if it’s getting hotter, I’m sure it’s not by much, Probably due to sunspots, volcanoes or some such. Maybe it’s the Chinese. They…
Permaculture Song about Change
“One thing’s for certain. That’s nothing is certain. … Even if you sit very still, be guaranteed that nothing else will. Don’t sit around wondering what to do. If you don’t make change, it’ll happen to you. … Become an agent of change.” Performer: Charlie Mgee Permaculture Change Song: Youtube Video The Formidable Vegetable Sound…
