subscribe to ENR magazine subscribe
contact us
advertise
industry jobs industry jobs
events events
FAQ
Mcgraw Hill Construction
ENR Logo
SUBSCRIBE TODAY
& receive immediate web access
This content is available for purchase. It is FREE of charge for ENR subscribers.

The Promise: Energy Without End or Impact

Publication Date: 1/21/2009
Author: 
Format: HTML

Description:
Fusion is the sun’s energy source. It is essentially inexhaustible, and that’s a major reason for the interest in developing fusion technology to generate power. In the sun, light nuclei such as hydrogen, under extreme gravitational pressure and excited by temperatures of 10 million to 20 million°C, collide with such force that they are fused into heavier ones. The fusion generates heat, maintaining the high temperature and keeping the reaction going.

Sign In 
Enter your email address and password below
Email: 
Password: 
Sign up for ENR | Forgot your Password?

 

Subscribe to access content 

Monthly Subscription (Automatic Renewal):
Access all articles published on ENR.com for only $9.95/Month.

Annual Subscription:
Get ENR magazine for one year and access to all articles published on ENR.com, along with ENR daily news alerts and weekly newsletters for only $49.95/Year.
 

 

Need to register your ENR print subscription? 

Enter your print subscription account number from your mailing label or your order acknowledgement here

Print subscription number:


For help finding your subscriber number click here
YOUR COMPREHENSIVE
SERVICE INCLUDES:
  • 36 Print Issues
  • All of ENR’s national and regional digital editions
  • FREE — ENR’s Greatest Construction Projects digital edition with your paid subscription
  • BONUS — ENR Future Tech & ENR Risk Review e-newsletters
  • Immediate access to ENR.com with daily updates and archives
  • Regional news and information
  • Daily news alerts & weekly e-newsletters
  • Construction methods & equipment
  • Industry forecasts
  • Quarterly cost reports
  • Opinions from the experts
  • Top Lists (Company Rankings)
  • Risk management
  • Safety and health
  • Technology tools
  • Asset management
  • Specialty contractor innovation