So this is a fairly significant technical challenge to make deeply cryogenic tanks out of carbon fiber, and it's only recently that we think the carbon fiber technology has gotten to the point where we can actually do this without having to create a liner — some sort of metal liner, or other liner, on the inside of the tanks, which would add mass and complexity. (businessinsider.com)
Reaching Mercury from Earth poses significant technical challenges, since the planet orbits so much closer to the Sun than does the Earth. (newworldencyclopedia.org)
There can be little doubt of the health risks of excessive salt consumption, but the multiple uses of salt in food manufacture make reformulation a significant technical challenge. (foodmatterslive.com)