Oily sheen

Iridescence caused by a single layer of oil spread out over water. I used to see this when I was a child on the school playground, I don’t know what had been spilt. I also remember seeing this sheen on the tarmac on roads when I was young. But now cars are less polluting the phenomenon has reduced. But obviously some cars still leak oil. Will this happen when all cars are electric? Doubtful, but who knows when that will be.

can anyone tell me?

As an experiment I cooked a portion of meatballs alfornio in the oven ( gas mark 7, 35 minutes) and king prawn linguini (5 minutes in the microwave). Both were cooked at the same time but I put the microwave food in when the oven food was almost cooked, so they were both piping hot.

My question to the scientific minded out there is, which used the most energy? My guess is the gas oven cooked meal. But I don’t know? What is the ratio between the two? If I want to save money, which is the best? Answers please…..

Where have all the clouds gone?

Parts of Britain and France are turning brown, fires are burning in France. Its happening across Europe. Its happening in America. Where has the rain gone? Crops are withering in places where the monthly rainfall has dwindled to almost nothing. Will the climate recover? Will rainfall be abundant again? The weather has only been overheated for a short time, but the damage is being done. What will happen in the future if we don’t reduce Carbon emissions and slow the increase in temperature we are currently experiencing? We are such a destructive species and we have started to overwhelm Earth. We only have one planet. Let’s try and take care of it.

Universes…?

I was just reading a discussion on Instagram (a mistake) which said that if gravity was a bit stronger the universe would collapse (yes) or a bit weaker it would expand and fly apart forever (again yes). It then goes on to say, since gravity is so precise God MUST exist! I took umbridge at this I said :

Huh? There were possibly other universes that collapsed or expanded.. We are just lucky to be in this one. Its not precision its just that we are able to observe it. Its like saying I’m five foot three tall, therefore my short trousers fit!

In any case the Universe IS expanding, There is a considerable red shift and we can see Galaxies are moving apart. There is no sign that its slowing down… Has God forgotten and left the Universe on too low a gravity? I know – I’m cynical.

Virga

Image from Wikipedia, Virga clouds

https://en.m.wikipedia.org/wiki/Virga

I was discussing weather with a friend and recalled seeing clouds that seemed to drop rain but it evaporates before it reaches the ground. I love clouds and I know I knew the name for then at one time but had forgotten it so I looked it up on Wikipedia (see link).

What I saw was what appeared to be snow falling from shower clouds, but it never landed on the ground. It was one winter day a few years ago when I was out visiting friends. I guess it’s very bad for gardeners or farmers who need water for their plants.

Masked

I was just stopped in the street by a woman who said ‘you know there’s no one around?’ I looked about me and said ‘yes I can see that’. Then she said ‘so you don’t need a mask’ I looked at her. Why tell me this when I had just forgotten to take it off, but why did it matter to her? Then she said ‘it might make it difficult for you to breathe with carbon Dioxide building up behind it.’

Oh I really wanted to say something, like ‘oh dear, so many people collapsing after wearing a mask for more than five minutes!’ or ‘ they are permiable to air, they just stop viruses’. But I bit my lip under my mask and said ‘no I’m OK. I’m used to wearing a mask at night, I have sleep aponea’. ‘Oh that OK then’ she said. I said ‘goodnight’ and walked off. But then called back ‘I’m still cautious about covid’. Perhaps people belive it’s over? But it’s my choice to wear a mask.

The Lyrids 2022

From the explaining science blog on WordPress. I love watching meteor showers so decided to share.

The night of  22/23 April will be the peak of the Lyrids, one of the most famous prolific meteor showers. Meteors (also known as shooting stars) are bright streaks of light caused by small lumps of rock or metal called meteoroids hitting the Earth’s atmosphere at very high speed. As they pass through the atmosphere they get heated […]

The Lyrids 2022

Coronal Mass Ejection

https://spaceweather.com

Image of the Sun showing a solar flare leaving the Sun. The flare was huge, but it was on the far side of the Sun. If you go to Spaceweather.com you can find out more. Apparently it was from a large group of sunspots. (darker areas of the sun involved in the magnetic lines of force within the sun, they get twisted together and produce solar flares). I am not an expert. But I do know you should NEVER LOOK DIRECTLY AT THE SUN. EVEN DURING SOLAR ECLIPSES, Spaceweather.com has all sorts of information on it.

Sunspots

Want to find out more about Sunspots? Also the Solar Wind, Near Earth Objects, Meteor showers, Cosmic rays?

Try viewing https://spaceweather.com – today it has information and photos about the largest sunspot seen in years. The Sun has a solar cycle, it has a minimum and maximum activity over a period of 11 years. It is caused by the Sun’s magnetic activity. I can’t explain the science properly so have a look at the site.

It also shows information about Auroras and comets among other things, and it is understandable and not too technical.

https://spaceweather.com

Condensation trail

We don’t see many planes overhead these days, but the last couple of afternoons we have seen a condensation trail as a plane has flown over.

Condensation because water vapour in the atmosphere condenses out on soot from the plane engines as the plane flies through the cold moist air. It makes a cloud that can hang in the sky for ages or dissipate quickly. In this case it was almost gone by the time the plane had passed over.

There are conspiracy theories that the trails are releasing chemicals into the atmosphere. This isn’t true but stems from some experiments years ago by scientists seeding clouds with silver iodide to create rain by giving water droplets a nucleus for the water droplet to form on.

So there is a grain of truth, but just that. The reality is far simpler. See https://en.m.wikipedia.org/wiki/Contrail. For more information.