Water is pretty much all-pervasive in our culture, we even see it in the stars:
Tags: water
Water is pretty much all-pervasive in our culture, we even see it in the stars:
Tags: water
Because clean water is so important, it’s a good thing we all have access to it.
Welcome to the beginning of a new week, and a new theme: water. You all know and love it, but this week I’ll be exploring the ins and outs of water, and what it means to us. To start with, just to show how important water is to us:
Yes, every single living creature depends on [...]
Tags: water
Ok. The end of the essential elements theme, look back over the past seven days to see what I’ve been up to. Today I’ve pulled together the theme for the whole week into one piece that I think does a good job of communicating one of the central ideas here: we’re just made up of [...]
It’s time for another essential element. Today we’re looking at sulphur. Sulphur is bright lemon-yellow, and is the chemical that gives rotten eggs their smell. In fact, sulphur is also known as brimstone: the brimstone from ‘fire and brimstone’, which evokes images of volcanoes and otherwise hellish scenery. So what’s so important about sulphur? It’s [...]
Tags: elements
Yes, oxygen. Pretty much everything important in your body contains oxygen as a fundamental building block. It’s essential to the way life has evolved on earth: only very few creatures (some bacteria basically) can survive in an anaerobic (no oxygen) environment. Oxygen is very reactive, so earth is unusual in having pure oxygen (O2) in [...]
Tags: elements
Calcium is an abundant mineral, the fifth most common element on the planet, and is essential for proper cell function. In humans, calcium helps your muscles move, and helps your heart saty functional. Most importantly though, 99% of the calcium (Ca) in your body is in your teeth and bones:
Calcium is also important in many [...]
Nitrogen is essential to all life on earth. It is a fundamental building block of amino acids and thus of DNA. I wanted to take a look at a particularly important aspect of nitrogen today: as it is necessary for plant life, it is a primary constituent of fertilisers used to grow most of the [...]
Day two in my essential elements series: hydrogen. Hydrogen is the lightest, most elementary element: sort of the lego brick from which every other atom is built. It is also the most abundant, 75% of the total of all stuff* in the universe, and is the power source of the sun, when combined with oxygen [...]