Science News

What is Science?

Science is a method utilizing observation and experiment. There are four requirements that must be filled. They are:

  1. A description of the phenomena.
  2. At least two hypotheses which “explain” the phenomena.
  3. Extrapolation of the hypotheses until an experiment is found which will distinguish between them.
  4. Performance of the experiment, and rejection of one or more hypotheses according to the result.

What is a Scientific Theory? (Wikipedia):

  • It makes falsifiable predictions with consistent accuracy across a broad area of scientific inquiry.
  • It is well-supported by many independent strands of evidence, rather than a single foundation. This ensures that it is probably a good approximation, if not completely correct.
  • It is consistent with pre-existing experimental results and at least as accurate in its predictions as are any pre-existing theories.
  • It can be subjected to minor adaptations to account for new data that do not fit it perfectly, as they are discovered, thus increasing its predictive capability over time.

 

Evolution

For mice and men, a strength in one area of Darwinian fitness may mean a deficiency in another. A look at Olympic athletes shows that a wrestler is built much differently than a marathoner. It's long been supposed that strength in fighting, or protecting territory and resources, comes at the [...]
Fri, Jul 21, 2017
Source: PhysOrg Evolution
Instead of having more children, a grandmother may pass on her genes more successfully by using her cognitive abilities to directly or indirectly aid her existing children and grandchildren. Such an advantage could have driven the evolution of menopause in humans, according to new research published in PLOS Computational Biology. [...]
Thu, Jul 20, 2017
Source: PhysOrg Evolution
A common bacteria is furthering evidence that evolution is not entirely a blind process, subject to random changes in the genes, but that environmental stressors can also play a role. [...]
Thu, Jul 20, 2017
Source: PhysOrg Evolution
Prized for their plumpness, poultry farmers have made incredible gains through agricultural breeding programs to maximize chicken size and weight to benefit worldwide consumption, where demand continues to grow the most for any meat. [...]
Tue, Jul 18, 2017
Source: PhysOrg Evolution

 

Cell Biology

Optimization for self-production may explain key features of ribosomes, the protein production factories of the cell, reported researchers from Harvard Medical School in Nature on July 20. [...]
Fri, Jul 21, 2017
Source: PhysOrg Microbiology
Municipal wastewater may become a key ally in the fight against antibiotic-resistant disease-causing bacteria and fungi, a new study at Stellenbosch University (SU) found. [...]
Thu, Jul 20, 2017
Source: PhysOrg Microbiology
Suspected life-extending properties of homemade cheese and yoghurt from the Carpathian Mountains will be analysed at Abertay University in a bid to discover their biological secrets. [...]
Thu, Jul 20, 2017
Source: PhysOrg Microbiology
A scientific collaboration between researchers in Scotland and China has uncovered a new kind of 'energy sensor' in our cells, changing our understanding of how the body monitors glucose levels and switches on the supply of alternative 'fuels'. [...]
Wed, Jul 19, 2017
Source: PhysOrg Microbiology

 

Cosmology

Astronomers have finally solved the mystery of peculiar signals coming from a nearby star, a story that sparked intense public speculation this week that perhaps, finally, alien life had been found. [...]
Fri, Jul 21, 2017
Source: PhysOrg Cosmology
The death of a massive star in a distant galaxy 10 billion years ago created a rare superluminous supernova that astronomers say is one of the most distant ever discovered. The brilliant explosion, more than three times as bright as the 100 billion stars of our Milky Way galaxy combined, [...]
Fri, Jul 21, 2017
Source: PhysOrg Cosmology
We may be capable of finding microbes in space—but if we did, could we tell what they were, and that they were alive? [...]
Fri, Jul 21, 2017
Source: PhysOrg Cosmology
A research team led by Adler Planetarium astronomer Dr. Grace Wolf-Chase has discovered new evidence of stars forming in our Milky Way Galaxy. By using a telescope equipped to detect infrared light invisible to our eyes, this exciting new science is revealing how stars, including our very own sun, grow [...]
Fri, Jul 21, 2017
Source: PhysOrg Cosmology

 

Quantum Physics

Modern physics has accustomed us to strange and counterintuitive notions of reality—especially quantum physics which is famous for leaving physical objects in strange states of superposition. For example, Schrödinger's cat, who finds itself unable to decide if it is dead or alive. Sometimes however quantum mechanics is more decisive and [...]
Fri, Jul 21, 2017
Source: PhysOrg Quantum Physics
(Phys.org)—Physicists have reported some of the strongest evidence yet that that the quantum world does not obey local realism by demonstrating new evidence for the existence of quantum entanglement. By performing an essentially loophole-free Bell test, they have shown that two atoms separated by a distance of a quarter of [...]
Thu, Jul 20, 2017
Source: PhysOrg Quantum Physics
Mathematicians at the Universities of York, Munich and Cardiff have identified a unique property of quantum mechanical particles – they can move in the opposite way to the direction in which they are being pushed. [...]
Tue, Jul 18, 2017
Source: PhysOrg Quantum Physics
Many physical phenomena can be modeled with relatively simple math. But, in the quantum world there are a vast number of intriguing phenomena that emerge from the interactions of multiple particles—"many bodies" - which are notoriously difficult to model and simulate, even with powerful computers. Examples of quantum many body [...]
Mon, Jul 17, 2017
Source: PhysOrg Quantum Physics

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