Rocket engines are, on the one hand, so simple that you can build and fly your own model rockets very inexpensively (see the links on the last page of the article for details). On the other hand, rocket engines (and their fuel systems) are so complicated that only three countries have...
So today we are going to do a deep dive into this. We are going to see just how much of what rockets emit, go over how much different fuels and engine types pollute, then we will compare their emissions against other forms of transportation and other global polluters. And we will even ...
This is one of the oldest designs for fuel cells; this type was the first the United States space program used to produce electricity and drinkable water on-board rockets and shuttles. NASA favored this method because the alkaline cell has high efficiency and a low operating temperature. However...
Their self-esteem and confidence sky-rockets, since they no longer have to worry about hiding their face in public and what others will think of them. Never have to feel different by having to use “separate utensils” for eating and drinking such as “separate glasses”, etc. ...
The sulfur and charcoal fuels that come in the kit are already ground fine enough for the rocket fuel, and can be used as is. Using a popsicle stick, weigh out the ground up potassium nitrate (KNO3) into a weighing cup placed on a digital scale. Add it to a plastic baggie. Use the...
when sulfur dioxide ejected from the eruption created small droplets of concentrated sulphuric acid – like those found in Venus’ clouds – at about 20 km (12 mi) altitude. This generated a haze layer and cooled our planet globally by about 0.5ºC (0.9ºF) for several years. Because...
Sulfur 0.10 7.2 ounces Airfloat Charcoal 0.09 6.5 ounces Spherical Titanium 0.30 21.6 ounces (For the Titanium, either fine (CH3010) or coarse (CH3001) metal may be used. Either one will produce its own unique effect. The fine will produce a short, dense spray of small sparks. The coarse...
You could measure how many web pages mention “chemtrails”, but that could give a distorted picture, as the people who believe in chemtrails might tend to be much more likely to post their beliefs on the internet. Lots of people knit, for example, but only a tiny fraction of them make...
Their self-esteem and confidence sky-rockets, since they no longer have to worry about hiding their face in public and what others will think of them. Never have to feel different by having to use “separate utensils” for eating and drinking such as “separate glasses”, etc. ...
Rocket engines are, on the one hand, so simple that you can build and fly your own model rockets very inexpensively (see the links on the last page of the article for details). On the other hand, rocket engines (and their fuel systems) are so complicated that only three countries have...