Benjamin Franklin Isherwood
Copper is NOT good for plumbing. It was once, when there was no alternative. Now many superior products like PEX are available. They are cheaper, more lasting and more efficient to fit than copper.
You can use various videos from websites such as Youtube and Instructables to figure out how to build your own solar panel. Efficient ones can be expensive but cheaper to make than purchasing a solar panel for installation.
The steel plow came about as the cost of steel fell and the need for more efficient farming came about. The main advantage of the steel plow is that you can plow more of a field in any given time. This makes food less labour intensive and cheaper.
Perspex is cheaper. 100%. Defo. IRL.
designed a steam engine that was 40% more efficient, half the size, and significantly cheaper than standard steam engines.
designed a steam engine that was 40% more efficient, half the size, and significantly cheaper than standard steam engines.
Benjamin Franklin Isherwood
Benjamin Franklin Isherwood
Benjamin Franklin Isherwood
A fuel efficient SUV is probably better- not only does saving fuel save the Earth, it also helps you save money. On the other hand, standard SUVs may be cheaper, and making fuel efficient vehicles can sometimes use more energy than normal vehicles. In the end, it's still probably better to go fuel-efficient.
No. E85 requires a vehicle to be designed to run it. It requires different internal engine componets, such as valves, and different computer stradegies such as timing and air/fuel metering. E85 is cheaper, but there really isn't any econmic benefit to the consumer to run E85. Because while it may be cheaper to buy, it gets significantly less miles per gallon. It isn't as efficient, so you burn way more fuel.
its cheaper to make a plastic from scratch !!
It is cheaper and more efficient.
Easier & cheaper to make. Also most efficient use of space
Electric grills are designed to be used outdoors to they are safe. It's still inadvisable to use one in heavy rain. Gas grills are a better alternative because they are more efficient and cheaper to operate.
cheaper than standard rate :)