Citations:“Synthetic Fiber.” Wikipedia, Wikimedia Foundation, 5 May 2019, en.wikipedia.org/wiki/Synthetic_fiber. Lazonby, John. “Polymers: an Overview.” The Essential Chemical Industry Online, www.essentialchemicalindustry.org/polymers/polymers-an-overview.html.
I think NASA should keep their focus future mission at outer space exploration. NASA is already on the track of exploring near planets. However, there are lots of other planets further space we don’t know and there are some planets are hard to explore even though we know the existence of the planet. The reasons … [Read more…]