Back to the Future

In the movie 'back to the future', there is a scene where Marty started to fade away because he was causing his parents to lose romantic interest by accident so he was preventing himself from being born. 

Isn't that the grandfather paradox? If you travel in time and cause yourself not to exist then you can't travel back in time to stop your existence because you don't exist before you travelled back in time.  

If I go into a time machine and assassinate myself ten years in the past then how do I travel back in time? I died ten years ago so I can't assassinate myself because I'm already dead from the assassination ten years ago. If I did go back in time and assassinate myself then what would happen? Would I stop the event from happening by being dead?

I don't know. 

Metallic Gold

At this present time, the old Jamaica brand of ginger beer drinks has a metallic gold appearance. Ginger beer has no alcohol in it, it is just a soft drink that tastes like ginger and sugar. 

I was wondering what a room would look like if I used to the same metallic gold colour has wall paper. Very bright I would imagine. 

Cold Day

Jacob, my son. We have been through a lot this year. I would compare this year to boat in a storm, the crew of the boat would feel relief when it is over and just be happy they are still afloat. I keep my chin up for happier times when everything has settled down and there is no pandemic. I can't really write all the things down here because it is a public blog but I can say we have been through a difficult time. I try and be positive about the future. 

I hope to one day show you the games our ancestors played. They would play chess, checkers, dominoes and various card cames like blackjack and solitaire. There are a few I played as a kid, Scrabble, connect a 4, Jenga and ludo, games like that. It wouldn't be hard for you to beat me at chess, my old Nokia non android phone beat me quite often. I imagined just sitting at a small table and playing the games our ancestors played after dinner on a weekend or holiday period. 

Pompeii Bodies

Earlier in the week I learned that two new Pompeii bodies were discovered. What had happened is about two thousand years ago, Vesuvius volcano erupted and buried the city of Pompeii in hot ash. The bodies of the people that died there left an imprint in the ash that hardend, their flesh rotted away leaving just the bones and the imprint. 

Some bright person recently discovered that you could pour concrete or plaster into the hollow space around the bones and get a cast of the imprint left by the dead person so you could see what they looked like at the moment they died. You can see the pain in the face of a person that died nearly two thousand years ago. The casts are very detailed, you can see what clothing they were wearing and the expression on their face and things that were near them. 

One of the two men that were found was dressed in rags and had flattened disk vertebrae in their spine so they think he was a slave, the other man was dressed in expensive clothing and was older then the young slave, they think he was the slave owner. Both men looked like they were dying in a sudden and painful way. 

Every buried person that was over 50 years old would have been around at the time of Jesus and it is possible that they met Jesus if they went to ancient Roman occupied Israel and Judah. 

To me the Pompeii body casts and preserved city are amazing. 

Music at work

I think that many companies are playing music at work to help colleges work better. In my view, a lot of modern music doesn't sound too good, the singer sounds like they are in pain and they are singing about a regret or something they want to do to someone or something like that. 

I find that the best music to play would be music without lyrics like computer game music and TV background music. There is one music I always wanted because it makes me feel focused and slightly quicker, it is the background music that plays during the TV show 'how it's made' from the discovery channel, they play techno music in the background and it sounds good to me. One particular episode is very good, it is the camera lenses one; they show how camera lenses are made, the sound track is very good in that episode. I never find the music from the 'How it's Made' TV show, I searched the internet and only ever found the Theme music itself but not the techno music that plays when they are in the factories. I hope I find those tracks one day. 

I think some very effective work music would be.

Super hangon game music 

Sonic the hedgehog 

Super Mario Bros 

Mario Kart 

Zelda music, especially from the twilight princes game. 

Wherever I post this article I will post the music so you can hear for yourself. 

So Cold

Well, the British home secretary has been accused of bullying some of the civil servants. I don't know anything about it, I don't know the details, the rules or the truth. 

What I do know is carbon dioxide freezes solid at -78.5 °c at earth's atmospheric pressure, I was reading about it on Wikipedia while I lay in bed to sleep. They call frozen carbon dioxide 'Dry Ice' because it turns back into carbon dioxide when it thaws without going into a liquid stage. Dry ice has many uses, it can make food freeze so fast that it has no ice crystals in it and would thaw without any side effects. Dry ice can also be used as bait to trap mosquitos, the cabon dioxide gas given off by the thawing ice attracts them. Dry ice isn't magnetic, frozen oxygen is. 

I also learned that dry ice is about 50% heavier than water and also would sink in liquid carbon dioxide. What I don't know is what would happen if they froze oxygen and carbon dioxide as a mixture. What would they call it? Would the ice mixture be magnetic? Would it behave differently? I imagine it would be hard to make mixed ice because the freezing points of the two gasses are very different, the carbon dioxide would freeze long before the oxygen so it would be very hard to mix them together. Perhaps that is why they don't bother naming the hypothetical ice. 

Helium Frost

I asked my phone what chemical has the lowest freezing point and it told me that it is Helium. Helium doesn't freeze until it it is crushed under very high pressure. It could be minus 250 °c and that wouldn't be enough. 

Now I am wondering if liquid helium would float in its own solution like water ice does. It makes you wonder what all the gases would do in their liquid state and frozen states? What properties does liquid carbon dioxide have and what about dry ice, frozen carbon dioxide. Then there is oxygen, oxygen ice and liquid nitrogen and nitrogen ice. A whole world for me to discover.