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Tom Eigelsbach
Works at Hangouts/Skype Math Tutor and Science/Sci-fi Geek.
Attended Vulcan Academy of Science
Lives in Washington, DC, USA
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Incompetence does not leave people disoriented, perplexed, or cautious. Instead, the incompetent are often blessed with an inappropriate confidence, buoyed by something that feels to them like knowledge.
The trouble with ignorance is that it feels so much like expertise. A leading researcher on the psychology of human wrongness sets us straight.
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Duh eBay ??? Wat 
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#geekhumor  
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Great video from +Sixty Symbols 
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Infinite Penrose Tiling Zoom

A Penrose tiling has no translation symmetry. If you pick any part of the tiling, that part is not periodically repeated when translated. 

One easy way to make a Penrose tiling is to use two rhombuses as tiles. It is easy to subdivide such a tiling into a new tiling with smaller tiles. When repeating this process, you get a self-similar structure.

Subdivision algorithm - Penrose Tiling Explained:
http://preshing.com/20110831/penrose-tiling-explained/

Roger Penrose - Forbidden crystal symmetry in mathematics and architecture:
https://www.youtube.com/watch?v=th3YMEamzmw

OpenProcessing-example used for making the gif:
http://www.openprocessing.org/sketch/183715
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The latest buzz from +AsapSCIENCE. 
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There are other pollinators, but nothing as prolific as honey bees and bumblebees. I've been going out of my way to introduce more bee-friendly plants in my yard and I've found that a variety of ground bees have taken up residence as well.
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White dwarfs represent a stable phase in which stars of less than 1.4 solar masses live out the rest of their lives.  Btw, regardless of their color they are called white dwarfs: they simply got their name because of the white color of the first few that were discovered. 

The max value of 1.4 solar masses is crucial to their stability, and it's known as the Chandrasekhar limit.  Chandrasekhar reasoned that something must be holding up material in white dwarfs against gravity, something known as electron degeneracy.  When star contracts, electrons get close together and there is a continued increase in their resistance to being pushed even closer.  

This process is related to pressure. At great densities, pressure from the degenerate electrons is sufficiently great, it balances the force of gravity and the star stops contracting.  So electron degeneracy stops the white dwarf from contracting and compresses the gas of the star. 

Pressure from degenerate electrons doesn't depend on temperature, so stars are stable even though no more energy is ever generated within them.  Because of electron degeneracy, they can’t contract further. However, they still have stored energy that will radiate for a few billion years.  Once the star burns out completely, or stops radiating, the white dwarf has reached the final stage of evolution and it becomes a cold and inert stellar remnant sometimes called a black dwarf.  

What this also means is that a white dwarf is incredibly dense.  A mass the size of the sun is compressed into a volume only the size of the earth.  This is so dense that a teaspoon of white dwarf weighs ten tons. That is, they have about a million times the density of water. 

Reference: http://www.eg.bucknell.edu/physics/astronomy/as102-spr00/web_pages/web8.html

#space   #astronomy  
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Cantor's Infinities - Professor Raymond Flood
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A Western came out 5 years ago (trailer below), a fictionalized account of the real historical figure Bass Reeves, the very first black U.S. Deputy Marshal, who is quite possibly the actual inspiration for The Lone Ranger  radio & TV shows.

Reeve's actual life sounds even more exciting than the fictional TV show character. Reeves didn't have an Indian sidekick who talked like Tarzan, but he did live with the Cherokee for quite a while, and he learned from them to speak fluently the 5 most popular native languages of the territory, as well as all their fighting skills, and he was known to sometimes wear disguises to catch criminals. 

Reeves had a towering 6'2" figure (when most of the American men then were about the size of Mexican men today, averaging 5'6"). When he retired at 69 after 32 years of non-stop dedicated service as a Deputy U.S. Marshal, Reeves had brought in a whopping 3000 felons, killing only 14 of them, and never having gotten shot himself. He deserves more than this small film, perhaps a high-quality HBO or Showtime series, with as many of the real arrests he made worked into episodes. For example:

Three men he was pursuing managed to get the drop on him and ordered him off his horse. The leader approached, gloating that the “Indomitable Marshal” was about to die. Showing no fear, Reeves calmly took out his warrants and asked the three men, “What is the date today?” The puzzled leader asked, “What difference does that make?” Reeves explained that he’d need to put the date of the arrest on the paperwork when he took the three of them in — dead or alive, their choice. The three men laughed at the absurdity of the thought, and Marshal Reeves used the distraction to grab the barrel of the leader’s gun. One of the men opened fire, but Reeves drew and shot him dead. He then killed the leader by bashing his skull with his pistol. The third man wisely submitted to the arrest.
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References: 
http://mentalfloss.com/article/33537/life-and-times-deputy-us-marshal-bass-reeves
http://www.policeone.com/police-heroes/articles/6408028-Police-History-Was-U-S-Marshal-Bass-Reeves-the-real-Lone-Ranger/
http://www.imdb.com/title/tt1586701/fullcredits?ref_=tt_cl_sm#cast
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TVTom
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✔ Certified Skeptic, Gamer, Philosopher, Sci-fi/Science Geek, Math Tutor
Introduction
"It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man." 
— Richard P. Feynman
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I love science. I love math.
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    Math Tutor, present
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Washington, DC, USA
Previously
Greenbelt, MD
Tom Eigelsbach's +1's are the things they like, agree with, or want to recommend.
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Watch Stephen Colbert, who is out of character, interview Neil deGrasse Tyson about science.

watch it: Stephen Colbert interviews Neil deGrasse Tyson | MaryAnn Johan...
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Colbert is out of character, deGrasse Tyson is funny and passionate. It’s long but well worth the time...

Neil deGrasse Tyson Challenges Climate Change Deniers
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Neil deGrasse Tyson -- known as the "sexiest" astrophysicist alive, host of Nova ScienceNow on PBS, and Stephen Colbert's favo

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This is the best Indian restaurant I've ever been to. It's also the best buffet of any cuisine I know of in the DC-Baltimore area, as long as you love Indian cuisine. The serve a buffet 7 days a week at a cost of $11 or $13 on weekends. Their weekend buffets are the best, however. I had three insanely wonderful dishes last time I was at the Curry Leaf for lunch on a Saturday. An okra dish that was out of this world. Same with the eggplant dish. And an outstanding cauliflower dish. Any of those three I'd consider batter than any dish at any Indian restaurant I've ever eaten at, and they had them all. They also had meat dishes, but I don't eat meat. And a dessert that was different from the usual India desserts, but it was delicious. My one problem was I had to pull myself away when I was full, because it was so good I just wanted to eat more. And on top of that, you are allowed to bring your own beer or wine with you and there is no 'corking' fee. So while this is above average what I usually want to pay for lunch, what you save from bringing your own bottle of wine to share makes up for it, as a $10 bottle of wine will usually cost you $30 or more in a restaurant. Hence, I'll bring along some of my favorite craft beer or a good bottle of wine to share, making this both my go-to place for special occasions with friends as well as my current favorite restaurant.
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Public - a month ago
reviewed a month ago
This is a great place to eat, given a couple of qualifications. It's got some really wonderful dishes that make it worthwhile. Most of the stuff they serve is mediocre and not very good, but as it's a buffet, if you know what the few really good ones are, that makes no difference, and you'll get a fantastic deal. You can take what you don't eat home, or get an extra plateful to go, or just get food to go for only $4 a pound ($6 for meat/fish). That's a great deal, and I usually get a plateful of stir-fry veggies to take home for another meal. Also, even the mediocre food is a plus if you bring finicky friends or finicky kids: they have plenty of junk food (pizza, french fries, fried chicken nuggets), plus plenty of stuff for vegans and vegetarians, plus lots of normal chinese dishes from lo mein to beef & broccoli, Everybody will like something here. The Hibachi stir fry is fantastic: you pick your own selection of veggies (and/or meats and eggs), and they have a good selection including snow peas and fresh mushrooms, and they'll cook it in front of you, and add whatever sauces you want or lots of garlic if you wish. Worth it if this is all you get. The sushi is good. Mostly California roll kinds of sushi, maybe a dozen varieties, with a couple of them vegan and several with cooked rather than raw fish. More than worth it just for the sushi alone. The salad bar is way above average, better than any of the ones you see in the supermarket for $5 or $6 a pound, with more variety, except this is all you can eat or only $4 a pound to take home, so that's worth it if you only eat salad, or bring along friends on a diet who just want to eat salad. Just order water. Soft drinks are expensive, though it's an all you can drink deal, but seriously, why the extra calories of sugar water to fill you when there's all the good food that comes with the package plan. I just get water and add lemon slices. Or maybe I'll order hot tea if I'm in the mood, but that's extra too. And I skip the desserts. There are tons of them, none that interesting, but usually at least two varieties of chocolate cake, which will make kids happy. And there are a few other really top-notch dishes, such as the string beans (always just perfectly crispy and not overcooked) or the small clams in the shell which is delicious, or the spinach and cheese dish which they hilariously always misspell as "Spanish Cheese." The rest of the stuff is mostly mediocre, but just sample and find the few really good dishes they serve, and ignore the rest, and you'll love the place. As for bad reviews and complaints about the service, all the waitress does is bring you water and take your used plates. It's a *buffet,* folks! On a rare occasion at peak hours you have to wait a minute or two in line because you pay at the start a one-price fits all, which is an amazing price, btw: $7.00 including tax with the dollar off value-pak monthly coupon in the mail, or $10.00 including tax with the coupon for $1.50 off after 3:30 for dinner or all Sunday. But if you go Sunday afternoon expect a big line to get in -- but that's because half the poor folks in that part of the county take their families there after church! They are doing a huge service to offer all this good food with tons of salad and veggies that poor families can afford instead of a greasy bucket of fried chicken at a fast food restaurant. It's the best cheap after-church family buffet in town. So it gets five stars from me. No, it's not the place to impress your date with, but it is a great place to go alone, or with a big family or group of friends where everyone will find something they like, or to get a great carry out stir fry.
• • •
Public - a month ago
reviewed a month ago
2 reviews
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