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Category Archives: Science
The Moons of Mars – Phobos and Deimos
Phobos and Deimos, are the two small moons which orbit Mars. Their origin still remains unclear, but Asteroid capture is the most accepted theory. Interestingly, from the surface of Mars, Phobos rises in the west and sets in the east; … Continue reading
Posted in Astronomy, Science
Tagged Asteroid, Asteroid capture, Asteroid theory, Astronomy, capture theory, Deimos, Mars, Mars moon, Mars moons, Moons, Phobos, synchronous orbit
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Coelacanth – a Living Prehistoric Creature
Coelacanth is a rare order of fish. The two extant species include the West Indian Ocean Coelacanth (Latimeria chalumnae) and the Indonesian Coelacanth (Latimeria menadoensis). They follow the oldest known living lineage of Sarcopterygii (lobe-finned fish and tetrapods); this classification … Continue reading
Posted in Biology, Evolution, Science
Tagged Charles Darwin, Coelacanth, coelacanths, critically endangered species, darwin, dinosaur, endangered species, evolution, extinct, Indian Ocean, Indonesia, Indonesian Coelacanth, Late Cretaceous period, Latimeria chalumnae, Latimeria menadoensis, living dinosaur, living fossils, Living Prehistoric Creature, lobe-finned fish, lungfish, mammals, Natural History Museum of Nantes, Prehistoric Creature, ray-finned fish, reptiles, Sarcopterygii, Tanzanian coast, tetrapod, tetrapods, vertebrates, West Indian Ocean Coelacanth
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Chemistry: Calculate the Mass of an Atom [Video]
I created and uploaded this video to youtube back in 2009. This video demonstrates how to solve a simple chemistry problem. I calculate the mass of a Chlorine atom.
Python – Implementing Caching in Your Applications via Dictionaries
In this blog I demonstrate how you can implement and take advantage of caching in your Python scripts/applications. Caching allows you to complete tasks more rapidly by storing and reusing results for repeated operations using the same criteria. For example, … Continue reading
Posted in Chemistry, Programming Languages, Python, Science, Technology, Tips & Tricks
Tagged amu, atomic mass, atomic mass unit, atomic masses, cache, caching, caching scheme, chemistry, compound, dictionaries, dictionary, dictionary cache, element, formula mass, h2o, mass, molecular mass, molecule, Python, python dictionary, python dictionary cache, water
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University of Berkeley Astronomers Discover Largest Known Black Holes
University of California, Berkeley Astronomers have discovered the largest black holes known to date. The black holes are estimated to be have masses equivalent to about 10 billion suns each (one black hole being slightly bigger than the other). The … Continue reading
Celebration of Darwin’s 201st birthday
Last month I attended the “9th Annual Evolutionpalooza! – Darwin Day in San Francisco.” The event was at the main branch of the San Francisco Public Library. The short presentation by NASA Astrobiologist Dr. Lynn Rothschild on Darwin and some … Continue reading
Interesting Facts: Man-made Urea
In the past, organic compounds were restricted to those that could be produced only from living entities. These compounds were thought to contain a “vital force” based on their natural origin. This “vital force” concept was disproved in 1828 by … Continue reading
Posted in Chemistry, Interesting Facts, Organic Chemistry, Science
Tagged Friedrick Wohler, human urine, organic compound, organic molecule, urea
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