HOME >> BIOLOGY >> NEWS
Physics tip sheet #21 July 10, 2002

1) Holographic plankton tracking
P. R. Hobson, J. Watson
Journal of Optics A: Pure and Applied Optics (Print issue: July 2002)

Knowledge of the distribution and dynamics of marine organisms and particles is crucial to understanding aquatic ecosystems. However, most measurement techniques disrupt the system and prevent collection of good data. Researchers have shown how to record the three dimensional structure and dynamics of a plankton colony by recording a series of holographic images. They can be analyzed later by moving a detector through a holographic reconstruction of the plankton swarm, frozen in time. A large-scale implementation of the recording scheme has been deployed in Loch Etive, Scotland, and analysis of the images is under way.

Journal article: http://stacks.iop.org/1464-4258/4/S34

2) Artificial leaves to remove carbon dioxide
L. G. Wang, S. J. Pennycook, S. T. Pantelides
Physical Review Letters (To appear)

Artificial leaves, made from semiconductors, might one day help to remove excess airborne carbon dioxide and maybe even turn it into fuel. Artificial CO2 fixation needs several ingredients: light, a catalyst (such as CdS), and organic molecules. A new study suggests how this process can be made more efficient, a necessary step if artificial fixation is ever to be practical on a large scale. The authors suggest the possibility that nanocrystal doping might obviate the need for light, which would allow some fixation to take place in dark smokestacks.

Physics News Update: http://www.aip.org/enews/physnews/2002/split/597-3.html
Journal article: Available on request

3) Measuring fundamental constants with BECs
S. Gupta, K. Dieckmann, Z. Hadzibabic, D. E. Pritchard
arXiv preprint server

The preci
'"/>

Contact: David Harris
harris@aps.org
301-209-3238
American Physical Society
10-Jul-2002


Page: 1 2 3 4

Related biology news :

1. Physics gravity model applicable to disease spread
2. Physics tip sheet #42
3. Physics tip sheet #41 - April 5, 2004
4. Physics tip sheet #39 - Nov. 17, 2003
5. Physics tip sheet #37
6. Physics tip sheet #36 - July 30, 2003
7. Physics tip sheet #34 - April 1, 2003
8. Physics tip sheet #33 March 28, 2003
9. Physics tip sheet #30 - January 9, 2003
10. Physics tip sheet #29 October 23, 2002
11. Physics tip sheet #20 July 3, 2002

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
(Date:4/19/2017)... ALBANY, New York , April 19, 2017 /PRNewswire/ ... highly competitive, as its vendor landscape is marked by ... in the market is however held by five major ... and Safran. Together these companies accounted for nearly 61% ... majority of the leading companies in the global military ...
(Date:4/17/2017)... Florida , April 17, 2017 NXT-ID, ... technology company, announces the filing of its 2016 Annual Report on ... and Exchange Commission. ... on Form 10-K is available in the Investor Relations section of ... as on the SEC,s website at http://www.sec.gov . ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. spent ... entitled “Stem Cells and Their Regenerative Powers,” was held on August 31st, 2017 ... joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic Surgery, Grossmont ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program Committee ... honoring scientists who have made outstanding contributions to analytical chemistry and applied ... the world’s leading conference and exposition for laboratory science, which will be held ...
(Date:10/9/2017)... ... October 09, 2017 , ... The ... medical marijuana products targeting the needs of consumers who are incorporating medical marijuana ... place in Phoenix, Arizona. , As operators of two successful Valley dispensaries, The ...
(Date:10/7/2017)... , Oct. 6, 2017  The 2017 ... of three scientists, Jacques Dubochet, Joachim Frank ... developments in cryo-electron microscopy (cryo-EM) have ... within the structural biology community. The winners worked ... can now routinely produce highly resolved, three-dimensional images ...
Breaking Biology Technology:
Cached News: