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Do window insulation kits actually work? Yes! They seal off drafty windows so you can spend less on your home heating bills.

Now, the outside of electric wires are usually covered in plastic because it’s a very poor conductor. It hardly conducts any electricity at all, so we can say it’s an electrical insulator.

An curved arrow pointing right. Inspired by cotton candy, four friends spent more than a decade designing a machine that turns locally sourced plastic waste into thin fibers that can be used for ...

More information: Kaniaw Marof et al, Enhancing thermal insulation in cement mortar with silica aerogel and recycled PET plastic, Construction and Building Materials (2025). DOI: 10.1016/j ...

But its greatest service may have been as the insulator that made the underwater cable possible. In 1843 a Portuguese engineer, Jose d'Almeida, described a natural plastic material to the Royal ...