By Michael Ricciardi •
September 23, 2009
The proposed experiment is called LIFE -Living Interplanetary Flight Experiment–and will be placed aboard Phobos-Grunt, a joint Russian-American mission to Phobos, the largest (and innermost) of Mars’s two moons (the smaller being Deimos). If all goes according to plan, it will be the first time living creatures from Earth will be sent intentionally beyond our Earth - Moon system.
By Michael Ricciardi •
September 10, 2009
In a first, researchers at the University of Washington in Seattle have developed a completely tree-powered electrical circuit.
The nano-scale device—approximately 130 nanometers [a nanometer is one billionth of a meter] in size—consumes just 10 billionths of a watt (10 nanowatts).
Unlike the legendary science fair experiment in which a potato-based electric circuit is created using two electrodes (each electrode being a different metal, which react with the starch, causing a potential difference and thus a current), the UW device utilizes electrodes comprised of the same metal, and is able to generate (output) 1.1 volts. “As far as we know, this is the first peer-reviewed paper of someone powering something entirely by sticking electrodes into a tree,” according to paper co-author Babak Parviz, associate professor of electrical engineering at the UW.
By Michael Ricciardi •
September 10, 2009
In this the 150th anniversary year of the publication of Darwin’s On the Origin of Species (and the 200th anniversary year of his birth), it is worth returning to that era of profound discovery and re-examining some of the controversies and earlier evolutionary theories begotten in the years just preceding its publication. Today (and ever since Origin), the core, controversial idea of evolution tends to be rather simplistically summed up as: we are descended from apes. Of course, Darwinism, as [...]
By Michael Ricciardi •
August 11, 2009
In a recent interview with W. Dean Pesnell of Goddard Space Flight Center, I posed many questions concerning current solar activity as well as some sensationalized, catastrophic news items as of late. Below are my questions and Dr. Pesnell’s responses.
By Michael Ricciardi •
August 10, 2009
The legendary glaciers of the Himalayan and Hindu Kush mountain ranges have been losing volume at an increasing rate over the past twenty to thirty years. And over this same time period, much data has piled up confirming the role of increased CO2 emissions in global warming trends. Given this, it would be “natural” to assume that CO2-induced warming was also to blame for the glacial melting. But it turns out that much stronger evidence points to the [...]
By Michael Ricciardi •
August 10, 2009
Here are my own personal steps to becoming a “green being”:
1} Try to stop driving exclusively gasoline powered automobiles. Carpool at least
once a week. Ride Public Transportation when you can and encourage Public Transit to
utilize/purchase alternative fuel buses (bio-deisel, natural gas, electric, etc.)
Both economic theory and experimental data concur–increasing the distance traveled to find food incurs “negative fitness consequences”, by decreasing total energy for maintenance, repair and reproduction. Yet, most animals must travel to find food. Individual, small groups, and large herds of eutherian (placental) mammals–like wild buffalo, gazelles, lions, and elephants–often travel great distances to find food. This expenditure of energy, at the apparent risk of biological fitness, has puzzled zoologists for some time.
As climate scientists scour the Earth’s surface looking for indications of climate change impacts, freshwater lakes and reservoirs are becoming the sentinels of choice for many investigations. Although they make up a small percentage of the planet’s surface area, such bodies of water–small to large–are providing clues to past climate fluctuations, as their sediments and “catchments” (the total chemical and biological materials that result from the presence of the body of water) often record ancient climate impacts, and offer indicators [...]
This population growth, on the surface, would seem to be a matter of great concern. To be sure, it is indeed a concern in those countries as they seek to insure the survival needs of more and more people. But, as population and economic researchers have shown, population size alone is not the real problem; the real problem is the rate of consumption per capita. Put in this light, we immediately see a dramatic difference between first and third world [...]
Researchers working with Asian elephants (Elephas maximus) at the Bronx zoo, conducted an MSR test. They applied “real” and “sham” marks to the rights sides of the pachyderms’ heads and waited to see how the elephants would respond to these when a large mirror was placed in their presence. Sure enough, the elephants demonstrated that they understood they were looking at themselves (and not another elephant) and begin touching the marks with their trunks. In all, their behavior during the [...]