About 250 years before Daniel Massey built his farm house in Huntingdon County, Pennsylvania, his great-grandfather came to the New World as an indentured servant. 150 years later, Penn State's Archaeological Field School is excavating Daniel's house to see how far he came from those humble beginnings.
A new paper published in Journal of the American Ceramic Society proposes a new method of producing hydrogen for portable fuel cells.
This new method negates the need for the complicated and expensive equipment currently used. With their ability to work steadily for 10-20 times the length of equivalently sized Lithium-ion batteries, portable fuel cells are ideal energy suppliers for devices such as computers, cell phones and hybrid vehicles.
The High Resolution Stereo Camera (HRSC) on board Mars Express has provided snapshots of the Aeolis Mensae region. This area, well known for its wind-eroded features, lies on a tectonic transition zone, characterised by incised valleys and unexplained linear features.
Illuminated by the Sun from the west (right side in the image), the pictures are of a ground resolution of approximately 13 metres per pixel. The region, imaged on 26 and 29 March 2007, during Mars Express orbits 4136 and 4247, is located at approximately 6° South and 145° East.
Dr. Zahi HawassJune 2007
When the Discovery Channel approached me to search for the mummy of Queen Hatshepsut, I did not really think I would be able to make a definite identification. But I did think that this would give me the perfect opportunity to look at the unidentified female mummies from Dynasty 18, which no one had ever studied in as a group. There were already many theories about the identities of these mummies, but the latest scientific technology had not yet been used to study them.
Picking a mate isn’t easy—if you are a female iguana. In a study Maren Vitousek of Princeton University and colleagues found that female Galápagos marine iguanas spend a lot of energy picking a mate from a wide range of suitors – energy they could otherwise spend foraging, producing eggs, or avoiding predators.
A breakthrough announced this week by scientists at the University of Southampton's School of Medicine will lead to greater understanding of noroviruses, the most common cause of non-bacterial gastroenteritis around the world.
Traditionally very little has been known about the biology of noroviruses because of the difficulty in culturing and manipulating these pathogens in the laboratory.
Dr. Zahi Hawass, Secretary General of the Supreme Council of Antiquities in Egypt, sent out this announcement:
On Wednesday (27/6/2007) at 11:00 a.m Culture Minster Farouk Housni and Dr. Zahi Hawass Secretary General of the Supreme Council of Antiquities (SCA) will hold an International Conference at the Egyptian Museum in Tarir in Room 43 to announce the Identification of Hatshepsut's mummy .
Please come to attend the event at 10:00 am. at the Egyptian Museum in order to fix cameras and TV crews.
Dental enamel is the thin, outer layer of hard tissue that helps maintain the tooth's structure and shape while protecting it from decay.
While eating fruit is important part of a balanced diet, how you eat it may be ruining your teeth, says David Bartlett, BDS, PhD. Frequently consuming foods with a low pH (potential of hydrogen) value, such as fresh fruit, pickles, yogurt, honey, fruit juices and raisins can lead to irreversible dental erosion.
LaCie has announced it has boosted the capacity of its d2 SAFE Hard Drive to 1TB in a compact 2 x 6 x 7in casing.
The d2 SAFE hard drive is designed to keep intruders away from private data, and comes equipped with a biometric sensor, 128-bit AES hardware encryption technology, and chain lock port for maximum protection against unauthorized use.
CERN Director General Robert Aymar announced that the Large Hadron Collider (LHC) will start up in May 2008 despite the fact that a low-energy run originally scheduled for this year has been dropped due to delays, coupled with the failure in March of a pressure test in one of the machine’s components.
In that instance, a magnet assembly known as the inner triplet, provided to CERN as part of the contribution of the US to the LHC project, failed a pressure test. A repair has been identified and is currently being implemented.