physics Archives - Intensive Gaming Diary

You might recognise this issue. You have a game cartridge and it seems it doesn’t work. It probably is from some console that’s older than your PlayStation. It might be even produced for Nintendo 64. The graphics are usually blurry or the game doesn’t load at all. Hold on. I have a perfect fix for you.

Let’s talk a bit about basic practical electronics. You might know a metal called copper. Do you know how it works in electronic devices and why it is used a lot? Let me try to explain this. I promise it won’t be boring. I am actually very interested in things like how copper works in these devices we use every day.

Copper conducts electricity very nicely. There are also some other metals, like gold and silver, that also conduct electricity very fluently but of course, they are so much more expensive that copper is better to be used. Copper also conducts nicely heat. There are also heat sinks made out of copper for this reason.

So the connectors in your game cartridge are made out of copper. This material has also a tendency to wear out a bit. There is also a phenomenom called oxidation. This happens when over a long period of time you have some copper, like in those connectors, that reacts with oxygen in air. This makes the connection of all of the interfaces to get weaker which produces these issues.

Do you need a electrician to get your physical copies of your games to work? No you don’t. I first encountered this issue when one of these Mega Drive game cartridges wasn’t working. It might not be easy to detect if the copper in the connectors is oxidised. I then purchased this small spray can that is called “PRF 6-68”. It was recommended for cleaning electronic connectors. It didn’t cost so much.

You have to be a bit careful when using this stuff for cleaning electrical connectors. It evaporates quickly. You just basically spray it to your target and then you have to have some kind of cloth, maybe a soft one, that you can try to rub the copper so that the oxidised part wears off. It’s not a good idea to breath in a lot of this stuff. So try to avoid this and also be careful with this. It’s not something you could let small kids to handle.

Using this spray to clean the connectors of a game cartridge has saved many of these retro games that I have bought and that first seemed not to work. Just remember to be careful. It doesn’t hurt for you get some deeper information about this product. And if you are interested in physics or chemistry behind this be free to search from your favorite search engine. I have given you some of my knowledge here but while this is not a science blog I am leaving this a bit open for you to find out.

Colin Mc Rae Rally 2.0 is a very interesting game in many ways. I wrote recently about different strategies you can have in this game. Now I would like to return to the physics and how this part of the game is handled. I think this game was the first rally game and also among some first racing games that I really liked (Gran Turismo was also great) and got into. It was released for PC and PS1. I played both of them.

There is no doubt that the way CMR 2.0 handles the part of physical modeling was in its time revolutionary. I know lots about games but I also have studied a bit of physics. I have learned physics mainly through school and by studying it in a school of applied sciences. However I am not a physicist. I am more of a software designer. So I know about some coding stuff also. This might open this fact a bit of how I find thinking about these subjects extremely interesting.

I haven’t seen any source code from this game. This is a commercial game and its code isn’t open source. I think for many of the fans of this game this doesn’t come as a surprise. The game was hugely popular. Releasing it as a freeware would be, well, stupid, you might say. However there are some very interesting details that open up for me as I play this rally game.

Let’s think about friction. It deals with surfaces. In a car you can have different tires that behave differently on different surfaces of road. So this is one thing. While driving on icy or snowy road you might want to use chains with tires. While driving on tarmac you want to use soft tires. And on wet surface you use special tires that perform nice on for example wet tarmac. Same goes for muddy surfaces or roads that are of gravel. You have to have a good grip on the road you are driving and friction can give you this.

There is a force that is effective on any road that you can drive on the whole planet Earth. It is called gravity. You have to have good and sufficient suspension in your car. On roads that are bumpy you have to have more suspension for overcoming the differences of altitude. Too much suspension is not good either if you drive on flat road.

You can also break and accelerate. You turn the wheel in right direction at a right time. The key is to try to steer correctly or at least keep the car moving as fast as possible. If you don’t break at a correct time you get to grass or some other surface that slows you down. Crashing also slows you down. This has everything to do with a thing called momentum. If an object doesn’t receive any push to any direction it keeps moving with the speed it has to the direction it is moving. At different time there is different amount of push to the vehicle. If nothing gets pushed the car keeps moving. Bigger objects take more power to get moving and are slower to stop moving. So the more mass you have the slower you are.

I think this is enough physics. I repeat what I said earlier. This is not so precise of a study. I haven’t seen any source code and I didn’t describe my theory so thoroughly. I hope this motivates you to learn more about physics. You can find more information using your favorite search engine. I definitely feel that you will get more excited about this particular rally game.

Intensive Gaming Diary

Tag: physics

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