Sentences with phrase «still need it for chemical»

We might still need it for chemical feedstocks for non-fuel products and it might still be more convenient for those nations who have plenty of fossil fuels but a barrel of oil won't be saleable for over $ 15 because biofuel will be cheaper.

Not exact matches

While nearly all spacecraft use chemical rockets for launching, once the hardware is in space, propulsion is still needed to manouvere the craft for orbital station - keeping, supply missions and space exploration.

«Biofilms were rampant on the Mir space station and continue to be a challenge on the International Space Station, but we still don't really know what role gravity plays in their growth and development,» said Cynthia Collins, Ph.D., principal investigator for the study and assistant professor in the Department of Chemical and Biological Engineering at the Center for Biotechnology and Interdisciplinary Studies at the Rensselaer Polytechnic Institute in Troy, N.Y. «Before we start sending astronauts to Mars or embarking on other long - term spaceflight missions, we need to be as certain as possible that we have eliminated or significantly reduced the risk that biofilms pose to the human crew and their equipment.»

When the first 10 chemicals slated for evaluation were released, asbestos was included and the first steps were taken to, once again, see that asbestos is banned in the U.S.. We've known for decades just how dangerous the mineral can be, but there are still a lot of hurdles that need to be jumped before we can celebrate.