Navigation Links
Explosives at the microscopic scale produce shocking results
Date:12/11/2007

LIVERMORE, Calif. -- U.S. troops blew up enemy bridges with explosives in World War II to slow the advance of supplies or enemy forces.

In modern times, patrollers use explosives at ski resorts to purposely create avalanches so the runs are safer when skiers arrive.

Other than creating the desired effect (a destroyed bridge or avalanche), the users didnt exactly know the microscopic details and extreme states of matter found within a detonating high explosive.

In fact, most scientists dont know what happens either.

But researchers from Lawrence Livermore National Laboratory and the Massachusetts Institute of Technology have created the first quantum molecular dynamics simulation of a shocked explosive near detonation conditions, to reveal what happens at the microscopic scale.

What they found is quite riveting: The explosive, nitromethane, undergoes a chemical decomposition and a transformation into a semi-metallic state for a limited distance behind the detonation front.

Nitromethane is a more energetic high explosive than TNT, although TNT has a higher velocity of detonation and shattering power against hard targets. Nitromethane is oxygen poor, but when mixed with ammonium nitrate can be extremely lethal, such as in the bombing of the Alfred P. Murrah Federal Building in Oklahoma City.

Despite the extensive production and use of explosives for more than a century, their basic microscopic properties during detonation havent been unraveled, said Evan Reed, the lead author of a paper appearing in the Dec. 9 online edition of the journal, Nature Physics. Weve gotten the first glimpse of the properties by performing the first quantum molecular dynamics simulation.

In 2005 alone, 3.2 billion kilograms of explosives were sold in the United States for a wide range of applications, including mining, demolition and military applications.

Nitromethane is burned as a fuel in drag racing autos
'/>"/>

Contact: Anne Stark
stark8@llnl.gov
925-422-9799
DOE/Lawrence Livermore National Laboratory
Source:Eurekalert

Page: 1 2

Related biology technology :

1. A Large-Scale Research Project by a Dutch Consortium Addressing a Global Problem
2. CCMR gets $2.9M for training grad students in nanoscale science
3. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
4. CCMR gets $2.9M for training grad students in nanoscale science
5. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
6. Peter Cummings to receive the 2007 AIChE Nanoscale Science and Engineering Forum Award
7. Sol-gel inks produce complex shapes with nanoscale features
8. Elbit Medical Imaging Ltd. Announces Definitive Agreements for a Large Scale Luxury Mixed Use Project in Bangalore, India
9. Heavier hydrogen on the atomic scale reduces friction
10. China-Biotics, Inc. Receives Approval to Begin Construction on Large-Scale Manufacturing Facility
11. Anthrax vaccine produces immunity with nanoparticles, not needles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/2/2015)... , July 2, 2015 ... Bio-tech procurement company Amici Procurement has chosen Microsoft ... help it move to Office 365.      ... provides small to medium-sized companies in the bio-tech sector ... aspects of the purchasing cycle to help them obtain ...
(Date:7/2/2015)... ... 2015 , ... In’Tech Medical SAS ( http://www.intech-medical.com ), a ... the acquisition of Turner Medical, Inc ., thus becoming a global leader ... Spine Industry. The acquisition of Turner Medical ideally supplements In’Tech Medical’s product offering, ...
(Date:7/1/2015)... and PARIS , ... AgBiome, and Genective, key developer of biotech crops, ... discovery of new generations of insect control traits. ... control to counter the realities of advancing insect ... aligning AgBiome,s unique insect control technology with Genective,s ...
(Date:7/1/2015)... ... 01, 2015 , ... The next-generation sequencing (NGS) clinical market is poised for ... diagnostics industry. BCC Research reveals in its new report that the market drivers of ... a growing need for better diagnostics as part of a molecular diagnostics trend. , ...
Breaking Biology Technology:Biotech Procurement Company Moves to Office 365 with iomart 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3AgBiome and Genective collaborate to create novel insect-resistant crops 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3
... /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) ... Administration (FDA) review, the Company is initiating ... administration of REOLYSIN(R) in,combination with paclitaxel and ... cancers. The Principal Investigator is Dr. Monica ...
... but powerful engine that propels the bacterium Bacillus ... flagellum by a protein clutch, Indiana University Bloomington and ... this week,s Science . , Scientists have ... what causes the flagellum to stop spinning -- temporarily ...
... As President Of ... AeroLEF Division -, ... , TSX: YM, AIM: YMBA), an oncology company that identifies,develops and ... imposed by the US Food and Drug,Administration (FDA) on the development ...
Cached Biology Technology:Oncolytics Biotech Inc. Announces U.S. Phase 2 Clinical Trial Investigating REOLYSIN(R) in Combination with Paclitaxel and Carboplatin 2Oncolytics Biotech Inc. Announces U.S. Phase 2 Clinical Trial Investigating REOLYSIN(R) in Combination with Paclitaxel and Carboplatin 3Microscopic 'clutch' puts flagellum in neutral 2Microscopic 'clutch' puts flagellum in neutral 3YM BIOSCIENCES ANNOUNCES FDA LIFTS CLINICAL HOLD ON AEROLEF(R) AND CLEARANCE OF A PHASE II CLINICAL TRIAL 2YM BIOSCIENCES ANNOUNCES FDA LIFTS CLINICAL HOLD ON AEROLEF(R) AND CLEARANCE OF A PHASE II CLINICAL TRIAL 3
(Date:6/24/2015)... , June 22, 2015 ... announced the addition of the "Huawei Ascend ... report to their offering. Huawei,s ... to the opposite direction than Apple,s and Samsung,s ... fingerprint sensor developed by Fingerprint Cards, a main ...
(Date:6/23/2015)... , June 23, 2015   MedNet ... that supports the entire spectrum of clinical research, ... ™ , the company,s intuitive, flexible ... awarded a Silver 2015 Stevie® Award by the ... Products & Services Website category.  The American Business ...
(Date:6/23/2015)... RALEIGH, N.C. , June 23, 2015 /PRNewswire/ ... technology, today announced the results of a recent ... unmatched accuracy on the wrist during activity. In ... biometric technology was compared along with the Apple ... for accurately measuring heart rate during activity. The ...
Breaking Biology News(10 mins):Huawei Ascend Mate 7 Fingerprint Sensor - Reverse Costing Analysis 2MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3
... Wildfire, insect outbreaks and hurricanes destroy huge amounts of ... dioxide entering the atmosphere, but scientists are now learning ... climate impact. Researchers conclude in a new study ... energy reflected back into space, is important in the ...
... river to connect two major metropolises, the corpus callosum ... left and right hemispheres of our brains. Now, neuroscientists ... that people who are born without that linka condition ... remarkably normal communication across the gap between the two ...
... represent the most richly diverse class of creatures in the ... serves as a review of the 27 orders of British ... overall biology and importance of more than 500 families. ... all the British insect groups which can appeal to the ...
Cached Biology News:'Albedo effect' in forest disturbances can cause added warming, bonus cooling 2'Albedo effect' in forest disturbances can cause added warming, bonus cooling 3Bridging the gap 2Bridging the gap 3
... Services is a microarray ... industrial and academic researchers. We ... of Agilent, and we provide ... Agilent catalogue arrays. Gene ...
Immunogen GST fusion protein corresponding to full-length rat JNK3/ SAPK1b. Quality Assurance Routinely evaluated by immunoblot. Stability 2 years at -20°C from date of shipment GenBank A...
... is a post-translational modification that plays ... including immune regulation, inflammation, cell-to-cell adhesion, ... developed two lectin based Glycoprotein Isolation ... Germ Agglutinin (WGA), that allow isolation ...
... The LS series of laser scanners is ... Expression Suite solution. ,Gene expression analysis, ... requirements essential to the advancement of ... rise to novel microarray formats and sizes. ...
Biology Products: