Grand Challenges for Engineering  -  Nov 26, 2014

Section Navigator
Grand Challenges



On February 15, the National Academy of Engineering will announce the Grand Challenges for Engineering.  Input came from many sources, including you.  



Every comment submitted to this fully moderated discussion has to be reviewed by an engineeringchallenges.org moderator before it is published on the site. Please keep your contributions civil, tasteful, and relevant. All comments must comply with our terms of use.

Submit a Comment

Name  
Location  
Email (optional)

Comment  
Submit

Comments

Pranab Jyoti Ghosh, India

"" 

I just want to announce that YES, atmospheric heat can be harnessed successfully. For a long time, this has been considered to be against 2nd law of thermodynamics and therefore "impossible". But, now it has been done successfully. Two Venezuela born inventors have made a machine capable of extracting atmospheric heat and converting it into power/electricity. A prototype was made and tested found that the output is 23 times more than the input.

O. Budayr, TN

"" 

I think this is a great idea, and I truthfully have no idea how this would work other than the fact that the laws that apply to us right now on earth, apply to the molecular machines. You would need to somehow use tools smaller or the same size as the molicules themselves, then try to manipulate the molicules without them sticking to the surface of the tool. You probably need to use some type of robotic arm that can make miniscuel movements so you can therefore sucessfully create the molecular machines. Even then I still don't see the great advantage of molecular machines other than to help hospital paitents with extremely small mutations in a cell or somthing similar.

National Academy of Engineering
500 Fifth Street, NW  |  Washington, DC 20001  |  T. 202.334.3200  |  F. 202.334.2290
The National Academies Logo
Copyright 2012 National Academy of Sciences on behalf of the National Academy of Engineering. All rights reserved.