markjgsmith

2024/04/10 #

• cat << EOF > The improbabilty of total solar eclipses

  I've listenned to several podcasts covering the recent solar eclipse in the US. One of which was Andrew Keen's interesting interview with author Christopher Cokinos. Amoung other topics they talk about, I was struck by Christipher's description of the science behind the eclipse. Of the shear impossibility of it all.

  These days we hear announcements of eclipses every year. We almost take it for granted. But that wasn't always the case. In the years before scientific understanding and modern technology, solar eclipses really freaked people out, which is very understandable. You live your entire life knowing that the sun sets in the evening and rises in the morning. Eclipses turn all that on it's head. Those in the direct path of the eclipse, literally experience for 4 minutes night time recreated in the middle of the day.

  So what's so special about it? Well first off, the moon is at a distance perfect for eclipses. It's also perfect in size. It is 400 times smaller than the sun and 400 times closer to the Earth. That means that when it crosses the face of the sun, it's diameter is just such that it can cover it completely. Because if this, total solar eclipses are possible, and have enabled us to see the Sun's corona. This is the area on the surface edges that are much hotter than the rest of the Sun. This distance and size fact alone, leaves me thinking how improbable the situation is, but that's not the only thing.

  The solar eclipses we see on Earth happen seemingly randomly because it turns out that the moon orbits the Earth in a non-standard orbit. Though the Earth and Sun move in the plain of the Galaxy the moon's orbit is in fact tilted compared to the plain of the galaxy. The moon is 5 degrees off of 'the ecliptic'. Whereas other planets that do have moons, the moons are likely in a regular orbit. They would have eclipses every single month. Granted these days eclipses are seen as much less random, we understand the science, but that's only happened relatively recently. For most of humanity's existence, eclipses basically happend randomly.

  The moon is also strangely big in comparison to the Earth, especially when considering its short distance from the earth. It took a long time for scientists to figure out how it was formed. We think the moon was formed, not by a foreign entity gravity well capture, as is the case with most other planets, but by a collision with a Mars sized planet, causing an enormous part of earth to be ejected into orbit. That eventually, after billions of years, turned into the moon.

  Basically this whole setup is very very rare in galactic terms.

  This configuration had a massive effect on the development of the planet, the tides, the seasons, and even life. Some believe it might have played a big role in creating the conditions for life itself, since the early Earth would have been impacted by it's forces greatly.

  All this got me thinking. In my opinion it might even be responsible for our fear of the unknown, the development of gods and religions etc, because you never knew when an eclipse would happen. It likely created and shaped how we perceive the external world and ultimately the universe. And since most other habitable planets probably don’t have such a moon, I suspect that, should there be life somewhere else in the universe, these civilisations would develop with a very different view of the universe and existence.

  The very particular way our solar system has evolved likely has had a big impact on our species at a core level. If there are aliens somewhere in the Universe, how we experienced the moon as we evolved as a species and developed into a civilisation will probably be responsible for many of our deep rooted differences.

  Personally I am in awe at all this, I mean seriously, what are the chances? The fact that all these giant entities arranged themselves in such a way that we get total solar eclipses, and random ones, so we never got bored with them, always curious to look for thousands and thousands of years, at what was out there beyond the skies of our planet. It's amazing.

  EOF

• Okays are trending. I noticed all day yesterday that everywhere I went, there was a big trend in people saying 'Ok' whenever I responded to some harrassment. It was really noticeable. But it was also evident that there was a lot of people creating-the-problems-they-complain-about, since in order to say this they first had to provoke me.

  Seems to be related to the Ok Boomer escallation. #

• It's kind of wild that the EU fines that are being impossed on Apple are so big that there is talk that they might just leave the EU. Apparently the EU only represents 7% of total Apple revenue and the fines are more than 7%. Apple is a business after all, at some point if it's not profitable then that's what would happen.

  It would create a lot of opportunity for european startups, but brings back memories of people having to smuggle in jeans to the Soviet Union.

  Perhaps the EU is being a bit too self important here? #

• There is a lot of talk that the EU has effectively excluded itself from the AI boom because of excessive regulation. #

• cat << EOF > The softly softly murmurers

  I've written before about the softly softly murmurers but without much description.

  They set themselves up nearby where you are sitting in a cafe. They are always women, most often small and petite in stature. Usually it's a place that is quiet. You are probably focussed and getting things done. They operate in pairs. One positions themself in such a way that their face is hidden by the other person's head. That means they can still see your body's main outline, even though you can't see their mouth or eyes. Then they have an apparrent quiet conversation, but it's not a real conversation. Everything they say is keyed off of your movements. And guess what, it's very distracting once you notice it.

  If they notice that you have noticed, you might suddenly hear a 'you learn' emerge from their speaking in tongues style quiet babbling. It's also likely some of them think they are doing you a favour. But some are clearly malicious, trying to slow you down and make it impossible to do whatever work you're doing. It often happens in retaliation for an earlier event, which itself was often manufactured by others, but blamed on you.

  Perhaps the worst thing is that it's so pernicious. You are the only person that it will affect, no one else in the room will even be aware that it's happening, so if you say something, you will seem unhinged. Occasionally it unfolds in such a way that it's completely obvious to all, but unfortunately that hapoens rarely.

  And you really can't do much about it, except continue as best you can, what you were doing.

  EOF

• People that say 'you learn' when other people realise that they have stolen their stuff does not in fact make everything OK.

  You can't be a thief and just pretend to be a teacher when you get caught. But this happens. Whether it's the truth or not, it's a terrible alibi.

  Stealing stuff in the name of teaching someone is still stealing. #

Today’s links:

• New Post: The improbabilty of total solar eclipses markjgsmith.com #

• Microsoft is confident Windows on Arm could finally beat Apple - It's good to see competition in the space is leading to advances that benefit users on all platforms. I'm interested to see what these devices look like. www.theverge.com #

• David Cameron meets Donald Trump amid push to shore up Ukraine support - It's just so horrible that Ukraine is stuck in the middle between Russia and western countries. Ukraine should be able to decide it's own future. It feels like this war is being made to purposely drag on, perhaps the military industrial complex is making too much money selling arms? It's strange to me that a massive country like Russia couldn't just crush Ukraine. What stars are they waiting to align before they end this thing? www.theguardian.com #

• New Post: The softly softly murmurers markjgsmith.com #