My barometer pressures have dropped from about 1010 yesterday to 970 on my traditional barometer and 959 on my electric weather station. There is always a discrepancy of about 10 (millimeters of Mercury?) between the two.
What is ‘pressure’. Pressure is air pressure, the weight of the air pressing down on us from the top of the atmosphere downwards.
The guage on the traditional barometer has gone from fair (gold pointer) to rain with the black pointer.
How is pressure measured? One ‘bar’ of pressure is the average air pressure at sea level. It’s also measured in millimetres of Mercury. There was a historical experiment to find out about the air pressure. The experimenters put a tube of mercury upside down in a glass dish. This can leave a vacuum in the top of the tube. If you have the tube and dish at sea level the Mercury will be at a lowed level in the dish. This is because a larger weight of atmosphere is pressing down. Go up a mountain and the level in the dish will rise, because the air pressure up there is lower (less depth of atmosphere).
There is lots of information on sites like Wikipedia about air pressure. They probably describe how the air circulating in the atmosphere causes areas of low and high pressure. The weather is also influenced by the sea and its temperatures and the heating of the Earth’s surface by the sun.
When I drew this image in ArtRage oils, the free app, and then Layout to duplicate it, I didn’t really know how they worked. And yet I’m pleased with the results. I guess sometimes simpler things look better. My hubby reckons I overwork things, but I just think I want them to look finished, I am not exactly a perfectionist, but I know when somethings done…anyway I hope you like these….
Each of these drawings were done slightly differently. The first and third in ArtRage app and the middle one used a photo which was drawn on with Sketcher free app.
Faces are interesting to draw, the first two are from life, the third is imagined. I’ve tried using free flowing pens and different textures backgrounds. Colours are tending towards the blue/green end of the spectrum.
I also thought about which side light falls on a face. I usually draw with light coming from the top right if I’m imagining an image, or from whichever direction it comes from if it’s from life.
More to follow as I create them.
Filters. How many? I think about five in my vacuum cleaner. All of them get blocked up. So when you come to clean them out you have to clear each one. Having long hair and cats doesn’t help. Our old cleaner was a lot more efficient and needed less maintenance. I guess the twists and turns dust has to follow through the machine, causes the blockages, like blood clots in a branching venous system. Not to mention… Hubby’s socks that get left in odd places and cause more problems! Argh!
For years I’ve used an app called ArtRage oils which is free, but when I got this new tablet I decided to go mad and get the full ArtRage app. I’m having a lot of fun with it, new tools to use, a colour picker, and various other things to do. Now I just need to learn it a bit more so I can try and do realistic art, and I have a stylus….that’s really much better than finger painting.
It’s on again! My hubby shouted from the kitchen. He’d been outside to check round the garden, and found the back light of his bike was flashing. But he’d turned it off after he’d found it flashing earlier. It was one of those multi function lights with different patterns each time you press the button.
Well has anyone got into the garden? I asked. No one can get through the fence, and why would they want to switch a flashing rear light on. I don’t know, he said but I’ve switched it off.
The next night he was checking round the garden again. It’s on again! He said excitedly. Well it must be broken, bring it in. It’s probably got rain in it.
So last night I walked in the kitchen, it was on again. I pressed the button on the back. Eventually it switched off. We went out for an hour and when we came back it was on again!
I know what to do. So I opened it up and loosened the battery, then I put the front lens back in place. As I went to walk away the lens popped off and landed on the floor! It made me jump! The outcome? It’s in the bin!
Growth and growing are part of life and economics, but maybe we don’t need growth as much? The world does not have infinite resources and the population keeps rising. Perhaps we need to seek a balance and an ability for renewal instead of just consuming everything in sight.
We need to use less plastic and less energy. To save resources for the people that come after us. Maybe buy one less peice of clothing or fill up a water bottle again instead of buying a new bottle.
I sometimes think that people are like a virus, growing exponentially. Covering the world with our rubbish and disease.
We need to be able to eat, drink and find shelter. Why don’t we try and care for everyone? I can probably remember back to when there were only 5 billion on the planet, now its over 7 billion and rising. And yet we are still growing? Is it any wonder that there are wars? I think we should share technologies so everyone can have better lives and education… .