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  Science News
  April 30, 2004

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Aerospike Engine Flight Test Successful - SpaceDaily  The effort, called the Dryden Aerospike Rocket Test, yielded big returns, providing the first known data from a solid-fueled aerospike rocket in flight. Two 10-ft. Long solid-fueled rockets with aerospike nozzles were flown successfully on two consecutive flights. The main advantage of aerospike nozzles is that, as the rocket climbs, atmospheric and airstream pressure act on the plume to keep it at an optimum setting along the entire trajectory. This allows very efficient engine performance in flight. With traditional rocket engines, the bell nozzle is most efficient at only one point in the rocket's trajectory.
Mouse, Nature Mice created without fathers  - BBC  Scientists have created two female mice without fertilising the eggs they grew from, the journal Nature says. The eggs had two sets of chromosomes from two female mice, rather than one from the mother and one from the father as in a normally fertilised embryo. The phenomenon, called parthenogenesis, never occurs naturally in mammals. Some researchers say the procedures may be applied to stem cell research, but the scientists who carried out the work say it would not yet work in humans. "And I don't want to do it," said Dr Kono.

Oil rig

Black planet: How much oil is left under the surface of the Earth?  - BBC  Left:  The oil is there, but can we access it all?  Just how much oil is left under the surface of Planet Earth? Loads - or more than 1,000bn gallons of proven (we know for sure) reserves to be precise, up to 40 years' worth. Add that still yet to be discovered, and the figure and timescale is much higher still. Mr Hayes added that while oil supplies would eventually dry up, that point could be a century away. "Yet as it becomes more scarce, prices will no doubt go up, and there will inevitably have to be a gradual move to alternative power sources."

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Alzheimer's Disease:

Biosciences:
4/30/2004: Mice created without fathers   - BBC
4/30/2004: More mammal monitoring 'a must'
  - BBC
4/30/2004: Tissue bill 'threat to medicine'  - BBC
4/30/2004: Trying for a child: One woman's battle to overcome a common cause of infertility  - BBC
4/30/2004: Pheromones soothe stressed out dogs - New Scientist
4/30/2004: Oregon Cougars Carrying Parasitic Worm  - NY Times

Climate, Environment:
4/30/2004: Look sharp to save lynx  - Nature
4/30/2004: Oceans rising faster near coasts - New Scientist
4/30/2004: Fire and water: volcanoes linked to winter - New Scientist
4/30/2004: A Lance, a Lunch or a Mate, All for the Price of a Horn  - NY Times

Computers:
Devices
4/30/2004: Screen hopes: How games suffer when they get the Hollywood treatment  - BBC
4/30/2004: Urban warriors: After 30 years, does anyone still play Dungeons & Dragons?  - BBC
4/30/2004: Size is all for digital jukeboxes  - BBC
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Communications
4/30/2004: Picture this: What to do with that funky phone camera? Keep a moblog  - BBC
4/30/2004: Cable broadband just got faster  - BBC
4/30/2004: Bush: Broadband for the people by 2007  - C/Net
4/30/2004: Spain's national ISP blocked by anti-spammers - New Scientist

Technology
4/30/2004: Chipmakers take strides  - C/Net
4/30/2004: Faster circuits go for gold  - Nature

PC's
4/30/2004: People feel loyalty to computers  - BBC
4/30/2004: Sony beams in blue laser discs  - C/Net

Internet
4/30/2004: Google vs. Yahoo  - C/Net
4/30/2004: Google's Goal: "Understand Everything" - Business Week

Miscellaneous
4/30/2004: Lawsuits deter some file-sharers  - BBC
4/30/2004: Microsoft cuts ribbon on EU research center  - C/Net

Energy:
4/30/2004: Black planet: How much oil is left under the surface of the Earth?  - BBC
4/30/2004: The Biggest Jolt to Power Since Franklin Flew His Kite  - NY Times

Health:
Cardiovascular
4/30/2004: Study Finds Seasons Affect Cholesterol - ABC
4/30/2004: Heart disease burden 'is ignored'  - BBC
4/30/2004: Exhaust harms drivers' hearts  - Nature
4/30/2004: Stem cells could repair hearts  - BBC

Cancer  

Infectious
4/30/2004: The Flush Factor - ABC
4/30/2004: Video: Staying Healthy: Protecting Yourself Against Infections - ABC
4/30/2004: Gov't to Recommend Gonorrhea Treatment - ABC
4/30/2004: WHO Blames Lab Error for China SARS Cases - ABC
4/30/2004: Cold virus 'lurks in the body'  - BBC
4/30/2004: HIV 'spread by homophobia'  - BBC
4/30/2004: Super-antibodies to fight disease
  - BBC
4/30/2004: MP asbestos 'time bomb' warning
  - BBC
4/30/2004: Drug giants set for merger
  - BBC
4/30/2004: SARS spreads in China
  - Nature
4/30/2004: Lab-linked SARS cases in China double
 - New Scientist
4/30/2004: 'Fish Handler's Disease' on Rise in Md.
  - NY Times

Non-Infectious

Miscellaneous
4/30/2004: Misleading Ads? - ABC
4/30/2004: Medicare Drug Card Program Set to Begin - ABC
4/30/2004: Child-proof packaging on medicines defeats most adults  - BBC
4/30/2004: Practical parenting: How to keep your stress levels under control  - BBC
4/30/2004: Abortion activists on the march  - BBC
4/30/2004: Checking up on WebMD  - C/Net
4/30/2004: Plastic Surgery Gets a New Look  - NY Times
4/30/2004: Different Sizes for Different Regions  - NY Times
4/30/2004: Learning the Risks of Looking Good  - NY Times

History, Anthropology:
4/30/2004: Titanic Task - ABC
4/30/2004: Ancient, Buried Roman Villas Resurrected - ABC
4/30/2004: Expedition Will Seek to Find Noah's Ark - ABC
4/30/2004: Dino hunts net rare raptor teeth  - BBC
4/30/2004: Explorers plan quest for Noah's Ark - MSNBC
4/30/2004: Egyptologists find maze with 50 mummies
4/30/2004: Roman villas resurrected in museum
 - MSNBC

Miscellaneous:
4/30/2004: Eye on accuracy: How reliable is biometric technology for use in ID cards?  - BBC
4/30/2004: ID card technology trial launched  - BBC
4/30/2004: Moving aid: How mobile medical units help India's elderly poor  - BBC
4/30/2004: Advertisers face up to TiVo reality  - C/Net
4/30/2004: Briefly: Google's French woes  - C/Net
4/30/2004: E-voting developers on the defensive  - CNN  
4/30/2004: Movies on demand  - CNN  
4/30/2004: Bush touts tech moves  - CNN  
4/30/2004: Morgan Stanley, CSFB in Google IPO  - CNN  
4/30/2004: Intel vs. TI: Guess Who's the Underdog - Business Week
4/30/2004: Why Your Cable Bill Is Soaring - Business Week
4/30/2004: Aviation's ugly duckling starts odyssey - MSNBC
4/30/2004: US unprepared for dirty-bomb attacks  - Nature
4/30/2004: NASA curbs comments on ice age disaster movie  - NY Times
4/30/2004: Missile defense: Ready, set, go?  - Wired News

Neurosciences:
4/30/2004: Empathy may not be uniquely human quality - New Scientist

Physics and Astronomy:

Prolongevity

Robotics:
4/30/2004: Cognitive Rascal in the Amorous Swamp: A Robot Battles Spam  - NY Times

Space:
4/30/2004: Aerospike Engine Flight Test Successful - SpaceDaily
4/30/2004: At NASA, Science Sharply Shifts Course
  - NY Times

Technology:
4/30/2004: Digital switch on target says BBC  - BBC
4/30/2004: Wrappers smarten up to protect food - New Scientist

  




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