Thursday, January 28, 2016

Astro video for the day - super hi-res video of the Earth



10199 Chariklo <-- wiki link. The recent Pluto excitement makes me think about what else can be just as exciting. There's some obvious Neptunion worlds like Sedna, and now quite probably some large rocky world even further out than Sedna - 5 Questions and Answers about the Proposed Ninth Planet . One world that is perhaps getting little attention now with Sedna and whatever they end up calling Planet9(I keep hoping this is the Nemesis world, but there's reason to think maybe not. Planet9 is in the Kuiper belt, and considerably smaller than what was proposed to disturb the Oort comet cloud comets much further out in the solar system) is Chariklo.  As the wiki explains, this is the largest of the Centaurs(asteroids and comets that have accumulated in a stable lagrangian point out between Saturn and Uranus).  And, it turns out to have a system of rings around it! As asteroid/comet with rings!

Monday, January 25, 2016

Marvin Minsky has passed away


Here's a link to a video and short article --> Marvin Minsky Reflects on a Life in AI

Marvin Minsky did a lot.  He innovated a confocal microscope, or improved it. His wiki shows that he served in the navy for a time as well. As I like to point out, Arthur C. Clarke mentions him in his 2001 movie. Well, I guess Marvin counciled Arthur in the book. I'm not sure what. Marvin Minsky saw that Eric Drexlers(and Richard Feynman's) nanotechnology can go a long way to making genuine A.I., and of course supported Eric Drexler's efforts more so than many throughout the years.



Thursday, January 21, 2016

astro picture for the day/ Mary Magdelene extra


Image credit: NASA & ESA, Jesús Maíz Apellániz (Instituto de Astrofisica de Andalucia)


The absence of any mention of Mary Mandelene by Paul in his epistles is more conclusive proof that the Gospels were written after the Pauline epistles.

astro video for the day/ Paleontological and Anthropological mysteries extras


- Paleontological and Anthropological mysteries,

link -->New World monkey The mystery here is how did monkeys get from the old world(Africa/EurAsia) to the New World Americas? The link indicated points out the wildest idea, that monkey's actually rafted their way across the, then, smaller distance between Africa and South America. The other alternative is that there must have been a land bridge due to lower sea levels. In the end, they say the Monkey's rafted from one island to another! The question becomes, why don't they raft around anymore?

I recently saw a tweet of a Gorilla sized Lemur. Below are pictures of today's Lemurs.


These were along the line to primates millions before the first bipedal Australopithacines. A fossil a Archaeoindris, 


The gorilla sized Lemur, or Archaoindrus appear to be related to the also now extinct Sloths.

When I heard of this, I wanted to get back to the Balboa park 'Museum of Man' museum in San Diego, where I remember seeing this giant something.  I finally did so a couple of days ago. What I found was a Gigantopithacine.

Gigantopithacus,


In fact, this is a picture of the Museum stuffed thing(I'm forgetting what they call stuffed animals) in the San Diego museum of man. What the info they give on it says is that it went extinct 400,000 years ago . . . contemporaneous with Homo Erectus!

The Wiki points out something even larger - Gigantopithacus Blacki.  Once again, a picture from the wiki of Gigantopithacus,


The wiki says that G. Blacki went extinct in Asia 100,000 years ago - contemporaneous with Homo Sapiens!

- A primate species on the path towards science/technology dependent species like 'Homo Sapiens'? - Pan troglodytes verus, the latin name of a western Africa subspecies of Chimpanzee does a few odd behaviors compared to the rest.

I for one have noted that Homo Erectus and other related species of it's time, lived in caves, and that most primates I've ever heard of don't.  Cave dwelling seems to be a behavior suggesting unusual intelligence over other life(obviously there's things like bats, some cats/bears and so on); but, living in a cave can provide a place to think where on the outside, one is so busy worrying about this/that predator, or bugs or weather . . . in a cave, one doesn't have that much to worry about.  The mind can wander around a bit more.

This cave dwelling chimpanzee also uses spears.  I've heard of little sticks to dig out ants, and I would argue that is technological(some people don't); but a spear?  That's a bit more of a technology that is indisputable.

Another odd behavior noted in this wiki --> Pan troglodytes verus - another species evolving down the line towards science/technlogy intelligence? , is swimming.  Most primates, if one of their's falls into a lake, will just scream and run around on the outside, and the one that falls in the lake just drowns. Swimming in a lake is a sign of intelligence; the abilty of a species to do something it's not evolved for.

This species is apparently endangered!


Monday, January 11, 2016

astro picture for the day/ Steven Weinberg quote


Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA

This is a picture of a Saturn asteroid/moon.  It's actually considered a sheppard moon; it makes for one of the major rings of Saturn.  Scientists theorize that the structure of the Saturnian rings is much the same, only smaller moons shepparding thinner rings . . . all the way down to the smallest particles of the rings!

"in a way, it's more freer . . . in a way, it's more noble, and more admirable to give point to our lives ourselves rather than to accept it from some external  source." - Steven Weinberg

- found some interesting lost technology history - the Photophone


Here's a picture of a Photophone. It was invented by Alexander Graham Bell around 1880.  It used modulated light to transmit sound.  It was the first wireless communication - back in 1880! There was a mirror that flexed based on sound applied to it.  This created modulated light sent to another photophone. So the transmitter was non-electrical; but, the receiver was electrical.  The receiver would take in the modulated light and create a modulated electrical signal, which then gets turned into sound.

The Marconi radio started to surpass the Photophone around 1897.  The Photophone was still in military service during the 1950s.

For more on the Photophone --> Photophone Wiki , there's also a link of the connections between the photophone and sound recording.  Remember the silent films?

- and there's new more or less advanced technology/science to report.  By now, maybe you've heard that scientists are excited about the possibility of detecting gravity waves. 

Gravity waves have been known to exist since around 1989, when astronomers found that gravitational energy was being sapped by light energy released by two pulsars orbiting one another . . . well, looking up this wiki, Gravitational-wave astronomy , I found that astronomers detected the effects of gravitational waves in 1974, by a Richard Hulse and Joseph Taylor; they were awarded the Nobel prize in 1993! Since then, astronomers/engineers have been building new laser gravity meters . . .

They tried building hugh metal cylinders first;


Joseph Weber and his gravity meter. The wiki on Joseph shows that he managed to get NASA to put a gravity meter on the moon, on the Apollo 17 mission! When you look at this gravity meter, and learn about today's efforts, you just know that he wasn't successful.

- this seems to be a famous picture of one of LIGO's mirrors . . .


I've heard these mirrors bury any astronomical telescope mirror ever constructed in reflectivity. Wish I could find that article again. Physicists also made a major technological breakthrough to make "Advanced LIGO." I've found that the optics have a roughness of .16 nanometers(that's less than the width of an atom).  But the squeezed light is really exotic physics/technology

LIGO, and any interferometer gravity meter(this is what's different between Joseph's gravity meter and gravity meters like LIGO) must isolate as much environmental noise as possible - thermal and . . . quantum noise. Quantum physicists found a squeezed light that allows them to reduce quantum noise. The squeezed light comes from making a squeezed vacuum state from which the light comes. LIGO then injects these squeezed light/lasers into the vaccum tubes where they bounce off those super fine mirrors.

Advanced LIGO, as they call it, can detect pulsars and other gravity wave phenomenon out to the distance of the Virgo galaxy cluster. The 21st century should have much the same excitement of 'the newest, most grandest gravity-meter than burries the earlier gravity meters in how far it can see dectect gravity waves' in much the same way we saw telescopes of the 20th century!

Gravity-meters can test inflationary Big Bang cosmology, string theory  and look at the physics of black holes, pulsars, supernova like never before!

- right on the heels of Advanced LIGO, is LISA, a space orbiting gravity-meter interferometer that is scheduled to go in orbit in 2017!  If we're getting gravity waves detection now, 2017 will be really exciting!  Then there's the James Webb space telescope to be placed at one of the lagrangian points.


- here's a pretty good article on the quantum physics and inflationary big bang cosmology science that gravity-meter interferometers will allow us to explore! --> Sounding out the Big Bang

Monday, January 4, 2016

astro picture for the day / Galileo quote for the day


Credit:
ESA/Hubble & NASA and S. Smartt (Queen's University Belfast)


Quote for the day

"Philosophy itself cannot but benefit from our disputes, for if our conceptions prove true, new achievements  will be made; if false, their rebuttal  will further confirm the original doctrine." - Galileo Galilei

Here's some fun mathematics

video

Boy's surface maps a projective surface into three dimensional space. A boys' surface uses three Mobius strips as well. If you don't believe in higher(and lower!) dimensions, you haven't studies topology(or even Mobius strips) enough! 

William Boy's surface was found after David Hilbert suggested to him to find a that immersing a projective surface into three dimensions was not possible!

Boy's surface is a stepping stone to turning the sphere inside out as well.