Posts tagged with "physics"

HEAF

Warhead life extension passes key milestone

Jun. 28, 2018 -  
The program to extend the life of the W80 nuclear warhead recently achieved a significant milestone when the National Nuclear Security Administration ( NNSA ) gave passing grades to the plans to refurbish certain components and the proposed approach to developing component cost estimates. Passing...
What Causes Concussions?

Concussion study may ‘change the game’

Jan. 19, 2018 -  
Researchers have identified evidence of early chronic traumatic encephalopathy (CTE) brain pathology after head impact -- even in the absence of signs of concussion. Early indicators of CTE pathology not only persisted long after injury but also spread through the brain, providing the best evidence...
film preservation

LLNL releases newly declassified test videos

Dec. 14, 2017 -  
Researchers at Lawrence Livermore National Laboratory ( LLNL ) released 62 newly declassified videos today of atmospheric nuclear tests films that have never before been seen by the public. The videos are the second batch of scientific test films to be published on the LLNL YouTube channel this...
phobos

How this Martian moon became the ‘Death Star’

Oct. 12, 2016 -  
Mars’ largest moon, Phobos, has captured public imagination and been shrouded in mystery for decades. But numerical simulations recently conducted at Lawrence Livermore National Laboratory (LLNL) have shed some light on the enigmatic satellite. The dominant feature on the surface of Phobos (22-...

Underwater survival story presents physics puzzle

Jul. 2, 2013 -  
When Lawrence Livermore National Laboratory physicist Maxim Umansky flipped through the news, a startling underwater survival story caught his attention. In May, a boat cook survived a 60-hour underwater ordeal 100 feet below the surface after his tugboat sank near the Nigerian coast. Harrison...