Introduction
It is a mathematical fact that both the real numbers and the rational numbers contain an infinite amount of elements. It is possible to devise a procedure that assigns a label containing a different natural number to every rational number. This is not possible for the real numbers. Technically this means that the set of real numbers has a higher cardinality than the set of rational numbers. In simple words it means that there are far more real numbers than there are rational numbers. Still both sets can densely cover a selected continuum, such as a line. However, the rational numbers leave open places,because infinite many real numbers fit between each pair of rational numbers.
Quantum physics is close to the ultimate foundation of everything, but not because it is about little things. Quantum physics is not about little things; a radio-wave photon can be hundreds of meters long (in terms of wave length as well as coherence length). Physics is fundamentally the question of what is possible at all. With quantum mechanics, physics arrived at a point where we either face up to uncomfortable facts or refuse to follow science any further. Quantum physics is not important to consciousness because of some quantum magic in the brain that switches the light on, but because physics is fundamentally about all that is possibly possible for consciousness to be conscious about – a consistent description of all phenomena, telling us what is possible.
If you want to irritate a lot of people at once, write an article about evolutionary psychology. Publishing such an article will invariably provoke a firestorm of denunciations and criticisms. Given the vehemence of these attacks, you couldn’t be blamed for thinking that the scientific basis for evolutionary psychology (or “evpsy” as it is sometimes abbreviated) was akin to tarot cards or bloodletting. Yet the basic premise of evpsy—that some aspects of the human brain and behavior were subject to evolutionary pressures—seems to be scientifically sound.
“Sound generated during eating of apples plays important role in its texture evaluation by consumers.”
Just a few days ago the CDF collaboration
announced their new measurement of the W boson mass, with a considerable improvement over the precision of the current world average for that quantity. Now DZERO, the competitor experiment, has also
published their own new measurement, which is based on a statistics of 4.3 inverse femtobarns - twice as many data as the ones used by CDF.
Forget mitigation and rationing, it is not the way cultures and progress work. The long-term solution is obviously to engage in basic research and come up with effective clean energy but also to create fewer emissions while development is in progress.
America never migrated to nuclear energy the way the French did so today up to 75 percent of electricity used in the United States is instead produced by coal-burning power plants and that means carbon dioxide (CO2) in the atmosphere and increased risk of global warming. To reduce the impact of current power generation, researchers are searching for porous materials to filter out the CO2 generated by those plants before it reaches the atmosphere, a process commonly known as carbon capture.
Scientists have reported the discovery of the floor of the world's oldest forest. They are now piecing together a view of this ancient site, dating back about 385 million years and - because virtually all studies have to reference global warming these days - they note their research could shed new light on the role of modern-day forests and their impact on climate change.
The recent discovery was made in the same area in Schoharie County, New York where fossils of the Earth's oldest trees, the Gilboa stumps, were discovered in the 1850s, 1920 and again in 2010 and were brought to the New York State Museum. The Museum has the world's largest and best collection of Gilboa fossil tree stumps.
What if bacteria could talk? Or use touch? A new study hypothesizes that bacterial cells may need to communicate in order to perform certain functions.
"To her who appears in the sky
to her who appears in the sky
I want to address my greeting
to the hierodule who appears in the sky
I want to address my greeting
to the great queen of heaven, Inanna [ancient Sumerian name for Venus]
I want to address my greeting
to her who fills the sky with her pure blaze
to the luminous one
to Inanna
as bright as the sun
to the great queen of heaven."
An ancient Sumerian hymn to Venus, written by priests
Astronomers have detected rapid changes in the brightness of embryonic stars within the well-known Orion Nebula, 1,350 light years from Earth, which appears prominently in the winter skies for European observers. Sometimes referred to as the Sword of Orion, the nebula lies below the three stars that form the belt of Orion the Hunter, one of the most easily recognized constellations.
It is one of the few nebulas visible to the naked eye and is a popular target for amateur astronomers.