Mrs. Philippi's Activity (2)
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Experts have long predicted that 3D printing will revolutionize the construction industry by making home builds cheaper, faster, and more environmentally-friendly. However, the ...About 4 years agodphilippi added a news bookmark.
Researchers have long been aware of the presence of rust, or hematite, on Mars caused by the chemical reaction between the iron ore on the planet's surface and water and oxygen ...About 4 years ago