Yes it is. Rubber can be bend wherelse the metal cannot!
Rubber cleats are always safer than metal cleats because it is softer and has a less chance of injuring someone.
because the plastic is liter than the metal
they will last longer but are much more uncomfortable.
metal is a conductor and rubber is an insulator
because
In our experience, there are several advantages to using flexible ducting: it is more flexible, making it easier to install in tight spaces. it is typically less expensive than metal ducting, making it cost-effective for many applications. relatively lightweight and easy to handle, so installation is usually quick and simple. it is also important that the correct flex is used for the job. i.e. fit for purpose.
The density of rubber can vary, and the density of wood can vary even more (unless we're putting air in the rubber to make foam). In general, however, wood is less dense than rubber, rubber is less dense than copper, and copper is less dense than mercury.
yes
I am actually less flexible than many people, because I'm a bit old and grey.
Rubber tends to not burn as easily as plastic. Also, rubber is more moisture-resistant than plastic. If rubber burns, the fumes from burning rubber are safer than fumes from burning plastic. Sometimes rubber is used because the cord tends to remain more flexible with rubber insulation.
You can repair small punctures with PVC cement, but the results will not be optimal. To repair a tire (inner tube), you need a solvent that will disolve a bit of the top layer of the rubber tube and the bottom layer of the patch. Then, as the solvent dries, the two, together with the added rubber in the rubber cement, become one. this gives a strong, flexible, air tight seal. The solvents in PVC cement fill the bill for disolving the rubber. But instead of a flexible rubber base, it's relatively inflexible PVC. Your repair will be air tight, but far less flexible than it would be with rubber cement. This may, in the long term, lead to stress failure at the edge of your patch.
No, it is not. Bone is strong but it doesn't bend easily. Cartilage is more flexible.