Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Monday, 8 June 2020

Cannabis sativa from antiquity to the Middle Ages


I wrote this as a bit of a giggle for my local SCA newsletter. I am not advocating for the use of Cannabis sativa for psychotropic purposes, but I do believe that we should be using the fibre in place of wood. It also makes pretty good shirts.

Friday, 7 September 2018

First Attempt at Mead


It takes me a long time to work myself up to trying something new. I'm always worried that I'll mess it up and end up having wasted my time and money. However, in this case, everything is either cheap or reusable.

I keep bees, and earlier this summer I was trying to do something with one of my hives (I can't remember what now), and I ended up with a frame of unfinished honey. This honey smells a little off, but it's perfectly safe to eat. I suspect there were some odd flowers or something that went into this batch. It just doesn't taste very good in my tea.

So, I saved it in the fridge until I was ready to try making mead. I have enough of that honey to probably make just about five gallons of this stuff.




Friday, 23 February 2018

Why do my houseplants die? (A tale of unnecessary woe)

Or, humans can't live on bread and water alone, and neither can plants...


I have some friends who swear up and down that they have a brown thumb. Every plant they take in dies a long, slow, horrible death. Sometimes it's because they forget to water enough (and even more rarely, too much). Usually when I ask them what happens, they say they don't know.


tl;dr- Buy a good liquid plant food and add it to your plant water as directed. Sometimes you need to re-pot your plants in new soil. Ask at your local garden centre what they suggest. Sometimes your plant has outgrown its pot and needs a slightly bigger one, but if you don't give food to your plant it will likely never get to this point.


If you actually want to learn something about it, read on...

Friday, 3 November 2017

Birds, feeders and the garden

My Dad loves feeding birds. He spends a lot of money every winter buying enormous bags of bird seed. And the birds love him, too. He has quite a few visiting his feeders for most of the year (he stops feeding them in May and starts up again in September). He loves to look after them, providing cover for them to hide in by planting bushes and native plants, and going out to shovel areas for the ground feeders if the weather is bad. It gives him a sense of purpose.

However.

Friday, 30 June 2017

Garter snakes- a gardener's best friend




Garter snakes are only mildly venomous, and even if they bite you they don't produce enough to harm a human. But they are very effective predators, eating slugs, insects, worms, frogs, minnows, and even rodents if the snake is large enough, all of which (except the worms, minnows and frogs) are generally bad for your garden. They have very distinctive markings- three yellow stripes run their length on a dark or black background. Garter snakes give birth to live young, unlike most reptiles. Adults can range in size from 45cm (18") to over a meter (over 45") at the very top end (but that would be a rare one, and probably wouldn't find enough food to stay in your back garden).

Friday, 9 June 2017

More advanced topics- Soil pH


As I learned from my daughter's grade 8 science class notes pH stands for potential of Hydrogen, and it's determined by measuring the number of hydrogen ions. Water has a neutral pH with a balanced number of hydronium and hydroxide ions. This pH is measured as 7. Anything less is acidic and anything above is basic (or alkaline). Lemon juice is 2.2 pH, so it is highly acidic. The best range for plants is between 5.5 to 7.5 (so acidic is better than alkaline), although some plants have evolved to survive in soils outside of that range (like Arabian coffee and highbush blueberry).