Tuesday, August 25, 2020
Turn Water Into Liquid Gold With an Alchemy Experiment
Transform Water Into Liquid Gold With an Alchemy Experiment Blend two clear arrangements, pause, and watch the fluid go to gold! This is a straightforward speculative chemistry task or science exhibit, in view of early endeavors to make gold from base metals. Materials Arrangement A 1 gram sodium arsenite50 ml water5.5 ml cold acidic corrosive Get ready Solution A by blending the sodium arsenite into the water. Blend the chilly acidic corrosive into this arrangement. Arrangement B 10 grams sodium thiosulfate50 ml water Get ready Solution B by blending the sodium thiosulfate into the water. Lets Make Liquid Gold! Empty one arrangement into the other. The reasonable arrangement will turn gold after around 30 seconds. For emotional impact, monitor the time and order the answer for transform into gold. You can even utilize an enchantment word if youd like. The Chemistry Behind How It Works There is a postponed response between the corrosive and the sodium thiosulfate to discharge hydrogen sulfide gas. The hydrogen sulfide responds thusly with sodium arsenite to hasten little gems of brilliant arsenious sulfide, which is otherwise called arsenic trisulfide (As2S3) or orpiment. Both Western and Chinese chemists explored different avenues regarding orpiment to attempt to make gold. In spite of the fact that the mineral can be made to seem metallic under specific conditions, the compound doesn't experience any response that changes either the arsenic or the sulfur into gold. All things considered, its a striking exhibit!
Saturday, August 22, 2020
Essay Example | Topics and Well Written Essays - 250 words - 179
Exposition Example The mediaââ¬â¢s commitment to minimized gatherings and their political strengthening to know their privileges and battle for them has given such gatherings a voice that they didn't have previously (Turner, 2000). The underestimated gatherings might be abused yet when the media acquires them through correspondence utilizing recordings and tapes their predicament is inevitably known all through the world. Their lifestyle is in the long run known, and individuals can identify with them as per the manner in which they are without making a decision about them brutally. Complex correspondence in social orders has been an issue that is vital. The mind boggling bunches have been dove into to discover how they speak with one another where they way they talk has been taped further the details of the particular dialects (Cody, 2009; Inoue, 1996). The centralization of behind the stage work is significant in understanding the greater thought, which includes the enormous groupââ¬â¢s communications. Consequently the interchanges between the different minimized should be dissected in an unmistakable way particularly their assertion utilization to decide whether they are near the bigger gatherings that are progressively various in their correspondences since they have associated with numerous different gatherings. The extraordinary, subsequently, impart unique and have their own political however not ordinary as the bigger groupings have. Along these lines carrying them to a shared opinion is in significant. CODY, F. R. A. N. C. I. S. (August 01, 2009). Recording SUBJECTS TO CITIZENSHIP: Petitions, Literacy Activism, and the Performativity of Signature in Rural Tamil India. Social Anthropology, 24, 3, 347-380.
Saturday, August 1, 2020
MIT campus lost power!
MIT campus lost power! 39 minutes ago, I turned in a pset 2 minutes late (fortunately they hadnt been collected yet) and dashed to 10-250 (one of our big lecture halls) for the weekly Physics department colloquium. The speaker is a guy named Joel Moore from Berkeley, and his talk is on Topological Insulators and Their Implications for Electronic Order. Dont know what those are? I dont really know either, and its ben 35 minutes. That said, he just put up some tensor notation that Ive been learning recently in 8.05 (Quantum II) so thats kind of exciting. 17 minutes ago, Professor Moore was mid-sentence when the lights flickered and went off. The hundred+ physicists in the room went oooooooh! My laptop screen glowed at me and I shut it, since it seemed out of place. The lights flickered back on, and I happened to find myself looking at OH, WAIT! He just brought up Majorana fermions. Thats exciting, since the colloquium a couple of weeks ago was about them. This is what makes attending these colloquia rewarding; you start attending, and understand literally 0.01% of the words used, and gradually pick up on vocabulary as you make your way through physics classes and become exposed to new mathematical techniques and ideas from other talks. Its a nice way to learn about miscellaneous topics that you wouldnt necessarily have time to take an entire class on. And, SWEET! Now hes talking about two-level systems. I spent pretty much all of Thanksgiving break studying those. Theyre one of my favorite topics in quantum; we just learned about constructing a maser (a laser, but with microwave-frequency light in case you werent aware, LASER is an acronym for Light Amplification by Stimulated Emission of Radiation) by, for example, passing a beam of ammonia molecules through a cavity. They deposit energy into their cavity on their way through, corresponding to a specific transition. Its very cool. Anyway, I was telling a story. -The lights flickered back on, and I happened to find myself looking down the lecture hall at Wolfgang Ketterle, who works in the Center for Ultracold Atoms and won the Nobel Prize in 2001. Three rows in front of him is sitting Frank Wilczek, legs propped up on the seat in front of him, who won the Nobel Prize in 2004. The speaker looked a little flustered. The projector was off. A technician came down, fiddled, and determined that there was no power. A couple of people grabbed their coats and headed for the exits. Professor Moore, however, is a HERO; he rolled up the sleeves of his white button-down shirt, picked up a piece of chalk, and turned to the chalkboard. Those of us sitting at the back leaned forward. He struggled with the first drawing, explaining that he wasnt expecting to have to get up and teach. This earned him giggles from the physicists. The enormous wall of nine chalkboards dwarfed him he looked a lot bigger when he was standing at the podium. He used up all the space on the bottom board, reached for the one above it, and found out that these fancy shmancy 10-250 chalkboards operate electronically; he COULDNT bring it down, because of the blackout. Awkward. He took it like a champ, and picked up an eraser. It made me wonder what I would do if there was a blackout during one of my Splash classes. Another note about the situation the scariest part was that the MIT wireless network was temporarily gone. Before I could sink into utter despair, however, whatever system MIT has for this purpose kicked in, and my Facebook page opened up. It had been something like two minutes since the blackout, and statuses were popping up like daisies expressing excitement, demonstrating wit (or not), and quoting some odd MIT emergency speaker that apparently said you may want to evacuateIm not sure. The Internet has done a lot of very strange things to society. It was kind of fascinating to keep an eye on my newsfeed while watching the presidential debates. Another status just popped up, a bit more applicable to me in my havent-slept-for-31-hours state*: power out. naptime. *Last night. Was. Not. Fun. But my oral exam this morning went well, and that was my last of the semester, so HOORAY! Alsois it really only 5pm? aaand an e-mail just came in from my dorms Area Director, saying as Im sure youve noticed, the power in the building is outits out for all of Cambridge and some of Boston. Not sure how quickly were going to get power back (fortunately I have nothing in the fridge at homean excessively busy week has not permitted any grocery shopping trips.) The talk just ended; a group has gathered at the front of the room to talk with the speaker and each other in more detail. Frank Wilczek is laughing with a theoretical condensed matter physicist who I remember from 8.044 recitation last spring, as well as a guy who I think is somehow involved with a NASA space telescope mission (I recognize him from past colloquia), and a fourth guy I dont recognize at all. Im sure Ill see him around. Another nice thing about these colloquia: faces become familiar. I just heard Frank Wilczek just say magnetic monopoles, cosmic strings. I love this place. And the theoretical condensed matter physicist just said: but the feeling I get when facing a problemI get dizzy, you know? Dizzy. Frank Wilczek responded with something I couldnt quite make out, and now hes talking about universality. According to Anonymous Fourth Guy, young people are terrified of entering this field. Interesting. Someone just made a joke about the third rail of condensed matter physics: touch it, and youre dead. Then, they all walked out together. Now Im the only person left in the lecture hall. Professor Moores chalk sketches are still up on the board, and the enormous blank white projector screen is still down. Theres a cavity with a magnetic field marked. An insulator, I think. Some Hermitian operators. A girl walked in, saw I was in here, and left whoops. Thats my cue to post this and head out. On the menu tonight: the last two problems of an 8.05 problem set, a science journalism essay, science journalism class, reading and poster-making for my UROP, a J-Lab paper, and beginning to study for the linear algebra exam I have on Monday. Isnt it wonderful to have such a selection? I should probably be a little embarrassed to admit that the moment the lights went off, my first thought was OH! COOL! A BLACKOUT! I SHOULD WRITE A BLOG POST! but there you are. Not every day does the chance come along to post a shoutout from a blacked-out MIT campus.
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