It was hot today: 33.5°C in Sydney. Summer has definitely arrived early. Not only is it unusually warm, but much of south-east Australia is in the worst drought in recorded history. Several towns are in imminent danger of their water supplies running completely dry. Dubbo, a large regional town announced upgrading to Level 4 water restrictions this week, which makes showers longer than 5 minutes illegal and all watering of lawns illegal. Sydney is currently on Level 1 water restrictions but it probably won’t be long before we start climbing the levels too.
Another big fear is bushfires. As the weather heats up towards summer, the dry vegetation all over south-eastern Australia is going to be at great risk. It’s been a couple of decades since the last disastrous level fires with tens of lives lost, but everyone is nervous about this summer.
I stayed in out of the heat today and tended to a stack of odd jobs I had piled up – literally – on my desk. I sorted through the pile of papers and paid some bills, filed some documents, organised things needed for my upcoming trip to Germany, and collated data collected from the laser experiment during my last school science visit. I calculated the wavelengths of the lasers we used from the interference patterns the kids traced and put it into a slideshow to show them on my next visit. It turned out that their sketching skills were not great, with some individual wavelengths being out by almost 100 nanometres, but luckily the averages of three measurements made with different slit configurations turned out to be within 9 nm (or under 2%) in each case. A good result, if honestly more by luck than careful measurement!
For dinner tonight my wife and I went to a French crepe place that we discovered recently. It’s run by four French immigrants who loved everything about Australia, except for the fact that they couldn’t find good crepes anywhere, so they decided to start their own restaurant. Both the savoury galettes and dessert crepes are really good, washed down with imported French cider. And outdoor seating, so Scully is allowed to sit with us.
New content today: