![]() Los Alamos's Thin Man and Fat Man code names were adopted by the United States Army Air Forces (USAAF). The Little Boy uranium gun-type design came later and was named only to contrast with the Thin Man. Little Boy came last as a variation of Thin Man. The Fat Man was round and fat and was named after Sydney Greenstreet's character in Hammett's The Maltese Falcon. He chose them based on their design shapes the Thin Man was a very long device, and the name came from the Dashiell Hammett detective novel The Thin Man and series of movies. ![]() These code names were created by Robert Serber, a former student of Oppenheimer's who worked on the Manhattan Project. The gun-type and implosion-type designs were codenamed " Thin Man" and "Fat Man", respectively. It was assumed that the uranium gun-type bomb could be easily adapted from it. Nonetheless, it was decided that the plutonium gun would receive the bulk of the research effort, since it was the project with the least uncertainty involved. Implosion-type bombs were determined to be significantly more efficient in terms of explosive yield per unit mass of fissile material in the bomb, because compressed fissile materials react more rapidly and therefore more completely. Oppenheimer reviewed his options in early 1943 and gave priority to the gun-type weapon, but he created the E-5 Group at the Los Alamos Laboratory under Seth Neddermeyer to investigate implosion as a hedge against the threat of pre-detonation. The committee concluded that any problems could be overcome simply by requiring higher purity. Groves Jr., who in turn assembled a special committee consisting of Lawrence, Compton, Oppenheimer, and McMillan to examine the issue. Conant informed Manhattan Project director Brigadier General Leslie R. Conant consulted Ernest Lawrence and Arthur Compton, who acknowledged that their scientists at Berkeley and Chicago, respectively, knew about the problem, but they could offer no ready solution. Wallace Akers, the director of the British " Tube Alloys" project, told James Bryant Conant on 14 November that James Chadwick had "concluded that plutonium might not be a practical fissionable material for weapons because of impurities". The feasibility of a plutonium bomb was questioned in 1942. Tolman suggested an implosion-type nuclear weapon, but the proposal attracted little interest. They chose a gun-type design in which two sub-critical masses would be brought together by firing a "bullet" into a "target". Robert Oppenheimer held conferences in Chicago in June 1942, prior to the Army taking over wartime atomic research, and in Berkeley, California, in July, at which various engineers and physicists discussed nuclear bomb design issues. Two more were detonated during the Operation Crossroads nuclear tests at Bikini Atoll in 1946, and some 120 were produced between 19, when it was superseded by the Mark 4 nuclear bomb. The first of that type to be detonated was the Gadget in the Trinity nuclear test less than a month earlier on 16 July at the Alamogordo Bombing and Gunnery Range in New Mexico. Fat Man was an implosion-type nuclear weapon with a solid plutonium core. The name Fat Man refers to the early design of the bomb because it had a wide, round shape. It was built by scientists and engineers at Los Alamos Laboratory using plutonium from the Hanford Site, and was dropped from the Boeing B-29 Superfortress Bockscar piloted by Major Charles Sweeney. It was the second of the only two nuclear weapons ever used in warfare, the first being Little Boy, and its detonation marked the third nuclear explosion in history. " Fat Man" (also known as Mark III) was the codename for the type of nuclear weapon the United States detonated over the Japanese city of Nagasaki on 9 August 1945.
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![]() ![]() DT5220 liked DIY Simple Arduino Based Solenoid Winding Mahcine.jcv09 liked Open Source Science Tricorder.jcv09 liked ramanPi - Raman Spectrometer.jcv09 liked FarmBot - Open-Source CNC Farming.jcv09 liked Raspberry Pi SDR Cyberdeck.reg on $30 Guitar Build Shows What You Can Do With Amazon Parts.irox on Mega-CNC Router Carves Styrofoam Into A Full-Size Flying Delorean.If you are missing the option to install the Netflix app. Type Netflix in the Search bar and tap the Search button. SayWhat? on How Do You Test If An EEPROM Can Hold Data For 100 Years? To connect your iPhone, iPad, or iPod touch to your Netflix account, start from the home screen and follow the steps below.Drone on UK’s JET Tokamak Retires After 40 Years And 105,842 Pulses.Joel on UK’s JET Tokamak Retires After 40 Years And 105,842 Pulses.Joshua on Infrared Following Robot Built As Proof-of-Concept For Autonomous Luggage.Paul on Infrared Following Robot Built As Proof-of-Concept For Autonomous Luggage.crispernaki on Open Source DC UPS Keeps The Low-Voltage Gear Going.make piece not war on Mega-CNC Router Carves Styrofoam Into A Full-Size Flying Delorean.Jonathan Bennett on FLOSS Weekly Episode 762: Spilling The Tea.Posted in digital audio hacks, ipod hacks Tagged ipod, micro sd, Rockbox Post navigationįLOSS Weekly Episode 762: Spilling The Tea 8 Comments If you really want to look back though, take a gander at the early prototype of Apple’s breakout MP3 player. It’s wonderful to see that the platform still has such great support years after it has been discontinued. project goes to show that modifying an iPod these days can be a fun weekend build thanks to the great software and hardware now available. Perhaps best of all, it can play DOOM! Alternatively, you can use the clickwheel to control the volume on your MacBook if you so desire. She then installed the open source Rockbox firmware, which opens up the capabilities of the hardware immensely. ![]() A new battery was then subbed in, along with a fancy clear front casing for the aesthetic charm of it all.Īfter the hardware modifications were complete, the iPod needed to be restored with iTunes to start working again. With two 512 GB cards installed, won’t be short of storage. Once opened, an iFlash Quad board was installed inside that lets the iPod use up to four micro SD cards for storage instead of the original hard disk drive. Careful hands and a spudger are key to avoid marring the pressed-together metal case. used the ever-helpful iFixit guide to learn how to disassemble the device safely. The iPod in question was a 5.5th generation model, prized for being the last to feature the Wolfson DAC with its good audio quality. had an iPod Video laying around, one of the more capable models that came out near the end of the product’s run, and set out upgrading it for duty in the pandemic-wracked badlands of 2022. The classic iPod was the MP3 player to beat back in the day, loaded with storage and with its characteristic click-wheel interface. Recognition of autoantigens by T cells with self-reactive TCRs can result in tissue-specific damage of systemic autoimmune diseases ( Seiringer et al., 2022). T cells and their receptors are crucial in autoimmunity. Once naïve T cells encounter the peptide-MHC complex (pMHC) presented by an APC, these T cells will start to undergo clonal expansion while retaining the initial TCR sequence ( Huang et al., 2019). The diversity of the αβ TCR from the unique pairing of various gene segments or loci generates on the order of 10 18 or more possible combinations ( Murphy and Weaver, 2022). The rearrangement leads to a vast diversity of TCR repertoires capable of recognizing almost any peptide presented by MHC molecules ( Mitchell and Michels, 2020). This process helps to ensure that only mature T cells respond to foreign antigens exclusively are allowed to survive and develop ( Schatz and Ji, 2011). The mature T cells undergo positive and negative selection, in which they are presented with self-antigens from the thymus for affinity selection to prevent autoreactive TCR repertoires. The gene rearrangement of a TCR involves the selection of immature T cells in the thymus maturing to become functional T cells that recognize foreign molecules and respond to them appropriately. TCR development in the thymus is critical for development of a functional immune system. The gene segment organization of the TCRγ and TCRδ chains is similar to that of the αβ TCR. The α chain is made up of the variable (V), joining (J) and constant (C) segments, and the β chain contains the V, D (diversity), J, and C segments. TCRs are heterodimeric membrane proteins that are composed of two chains, αβ or γδ. T cell function is initiated by recognition of a peptide antigen in a specific interaction via the T cell receptor (TCR) in the context of the major histocompatibility complex (MHC) expressed on antigen-presenting cells (APC). Furthermore, discussed here are bioinformatic tools that can be applied to study the structural biology of peptide/TCR/MHC (major histocompatibility complex) and predict antigenic epitopes using advanced artificial intelligence tools. This review provides an overview of the application and development of bulk RNA-seq and single-cell (SC) RNA-seq to examine the TCR repertoires. With the development of RNA technology, transcriptomic data must provide valuable information to model and predict TCR and antigen interaction and, more importantly, identify or predict neoantigens. RNA-seq (RNA sequencing) is a valuable tool for studying TCR repertoires by providing a comprehensive and quantitative analysis of the RNA transcripts. Understanding the specific TCR involved in this process can provide insights into the autoimmune process. The recognition of autologous peptides by adaptive immunity may lead to the development and progression of autoimmune diseases. Identifiers URN: urn:nbn:se:umu:diva-23195 DOI: 10.1182/blood-55 PubMedID: 12946997 OAI: oai:DiVA.T cell receptors (TCR) play a vital role in the immune system’s ability to recognize and respond to foreign antigens, relying on the highly polymorphic rearrangement of TCR genes. Place, publisher, year, edition, pages2003. In some cases the leukemic progenitor cell might arise earlier in lineage before DHJH recombination but retain the capacity to further differentiate into cells capable of altering the pattern of Ig and/or TCR rearrangements. MRD detection should include multiple gene targets to minimize false-negative samples or include also multicolor flow cytometry. Alteration of these clonal gene rearrangements is a common feature in childhood ALL. Using primers designed from the novel relapse sequences, the relapse clone could be identified as subdominant clones in the diagnostic sample in 8 of 14 patients. ![]() In 20% only new sequences were found at relapse. In 24%, one original sequence was preserved but the other lost, and in 14% the original sequences were conserved with new sequences identified at relapse. In 42%, all original Ig and/or TCR sequences were conserved. We analyzed the sequences of Ig and TCR gene rearrangements obtained at presentation and relapse in 41 children with ALL to study clonal stability, which has important implications for monitoring MRD, during the course of the disease. Immunoglobulin (Ig) and T-cell receptor (TCR) gene rearrangements provide clonal markers useful for diagnosis and measurement of minimal residual disease (MRD) in acute lymphoblastic leukemia (ALL). 4520-4526 Article in journal (Refereed) Published Abstract ![]() And in 1732 he inaugurated his famous Poor Richard's Almanack with a hoax predicting the death of rival almanac publisher Titan Leeds.įranklin perpetrated his most famous fraud in 1747. ![]() At age 17, in order to land a job in Philadelphia, Franklin faked his credentials as a journeyman printer. At age 16, prohibited by his youth and indentured status from writing newspaper articles, he began submitting them under the pseudonym "Silence Dogood," a fictitious middle-aged widow. More incriminating than any of these details is Franklin's long, well-documented record as a hoaxer. This cuts no ice with Tucker, though, since William-no scientist-was a well-known scalawag. If so, why would Franklin have waited four months to report so momentous an event? Unlike Franklin, Priestly names a witness: Franklin's son, William. Tucker likewise is suspicious of an account penned 14 years later by Franklin's disciple Joseph Priestley, who, though he wasn't present at the experiment, says it took place in June. ") seems out of character for someone renowned for forceful writing. The indirect phrasing ("The kite is to be raised. In fact, Franklin never explicitly says that it was he himself who performed the experiment. He gives no location, no exact time or date. 19, 1752 Pennsylvania Gazette-he omits many details. But in his account of the kite experiment-a brief article that ran in the Oct. Elsewhere in his published work Franklin shows himself to be a master of precise expression. Then there's Franklin's choice of language. If lightning did strike the kite, as Franklin says, the experimenter would almost certainly have been electrocuted. Even if that could be done, gravity would cause water to flow down the kite string onto the silk cord, ruining its insulating power. Were silk handkerchiefs of 1752 big enough for such a kite? Could the kite lift a brass key weighing a quarter of a pound, which Tucker says was typical of the day? Franklin recommends that the kite flyer stand "under some cover, so that the silk riband may not be wet." Tucker argues it's awfully tough to fly a kite from inside a shelter. Rather than being dissipated into the earth, the electrical charge stays in the key, which throws off sparks when approached, say, by the experimenter's finger. To the end of the string is tied a metal key, and to the key is attached a silk (nonconductive) cord, which the experimenter holds. This wire draws down "electrical fire" from the clouds, the charge being conducted earthward along the kite's rain-soaked string. From the kite's wooden frame there protrudes a metal wire. In Franklin's own account of his experiment (published in 1752), a kite fashioned from a silk handkerchief is set aloft in a storm. In Bolt of Fate: Benjamin Franklin and His Electric Kite Hoax (Public Affairs, $25), author Tom Tucker audaciously argues that one of history's most celebrated scientific experiments was a fiction. Few, though, know that he was also a prolific prankster. Most Americans know the highlights of this polymath's life. Benjamin Franklin: statesman, author, postmaster, inventor of the bifocal, the lending library and the Franklin stove. ![]() The direct probing and understanding of the dynamics of chemical and biological processes occurring in condensed matter, is currently in its early stages. The quantum interference in the time-dependent magnetic field is also discussed and similarities between this effect and Josephson one, as well as their differences are considered. Different mechanisms of spin relaxation as well as their influence on the spin transport are considered. If the structure length L is chosen to be, It is possible to 'wash out' the quantum interference related to the phase coherence of the 'orbital part' of the wave function, retaining at the same time that related to the phase coherence of the spin part and to reveal the corresponding conductance oscillations. If magnetic fields in two arms of the structure are different, the spin part of the wave function acquires a phase shift due to spin precession around the field. The 'spin ballistic' regime is supposed to occur when the phase relaxation length of the spin part of electron wave function is much greater than the phase relaxation length of the 'orbital' part. In the paper a theory of quantum interference in a loop structure caused by spin coherent transport and the Larmor precession of the electron spin is presented. In the electron-doped Nd2-xCexCuO4-y, the dependence Ïab(η) indicates a crossover from incoherent transport in the c-direction. We present data for hole-doped YBa2Cu3Oy (6.3large (102â105) and strongly temperature dependent resistive anisotropy η=(Ïab/Ïc)1/2 of cuprates perhaps holds the key to understanding their normal state in-plane Ïab and out-of-plane Ïc conductivities. ![]() The Bears lost despite a 4-1 turnover margin, that fumble coming from Tyler Scott, who also figured into a tough play late. Moore (7-96-1) and deserved a better result. On the Chicago side, it was an epic performance from Justin Fields who threw for 169 yards and rushed 18 times for 104 more. For rebuilding or reloading teams, he’s a good buy ahead of this week’s FFPC dynasty trade deadline. If not for a questionable (and irrelevant) penalty the previous week, Williams would have consecutive games with a TD. The 32-yard score pulled the game back to 26-21 and saved crucial time with the clocking ticking down to 2:59. After getting open for numerous deep shots but little else across the last two years, Williams got behind the defense at the crucial moment on Sunday and Goff (finally) didn’t miss him.
And according to FitzGerald, the stars in the sky are an escapism, one that connects all of us. He also used audio recordings from probes that were floating around the solar system.Įlectronic, garage and house music have for decades been a form of escapism, first evolving in the interesting margins of society, and uniting disparate groups. He took images of the universe collected by Nasa and, by feeding them into new software programmes, converted them into sounds, which he then developed into the 10 tracks on the album. It reminds you that we're tiny and insignificant." The musician told MusicTech: "To me, represented the furthest point away the grandest vision of humanity." FitzGerald spent time in New Mexico driving in the desert and stargazing. Just as the Stoics emphasised perspective and how small each of us is compared to the whole of the cosmos, electronic music artist George FitzGerald looked to the universe and the stars for inspiration for his 2022 album Stellar Drifting. ![]() But of course the sounds that each of us find restful are by definition a personal thing, and there is no one-size-fits-all soundtrack that will promote peacefulness for all. This core Stoic idea was, says Sellars, "a huge influence on the founders of modern cognitive behavioural therapy (CBT) and its effectiveness has been proven by the many studies of CBT that have been made".įrom supposedly soothing pan pipes to ambient rainforest sounds, we are all accustomed to the stock idea of soundscapes as a calming backdrop. The philosopher Epictetus, he adds, who was Aurelius's primary influence, wrote: "When we are frustrated, angry or unhappy, never hold anyone except ourselves – that is, our judgements – accountable." Whatever is going on in the world, "it all depends on our judgments and interpretations of situations, not the situations themselves," explains Sellars. In order to make good decisions we need a calm frame of mind so that we can pause and reflect, rather than behaving merely reactively."Īccording to the Stoics, we just need to see that calmness is within our control. They have been overcome and may act impulsively or violently. ![]() The person in the grip of violent emotions, for instance, literally isn't thinking straight. This is because a disturbed or troubled mind isn’t going to be able to make sensible, rational decisions. Sellars explains: "Calmness is essential to living a good, happy life, Marcus and his fellow Stoics would insist. ![]() As Aurelius writes in Meditations: "The nearer a man comes to a calm mind, the closer he is to strength." But why the emphasis on being calm? Is it really that important to find peace? In the Stoic mindset, it seems, calmness is everything – it is strength. ![]() This volume provides invaluable insights as to how the Bush administration prepared to hand off the wars in Iraq and Afghanistan (not to mention persistent terrorist threats and other brewing crises) to the Obama administration. “Presidential transitions are fraught with risk, particularly when thousands of Americans are in harm’s way as one administration passes the baton to the next. Senator, former Director of the Office of Management and Budget, and former U.S. As a member of the Senate Foreign Relations Committee, and a veteran of two White Houses, I particularly appreciate how helpful these materials will be in ensuring future transitions serve the country well from a national security point of view.” - Rob Portman, U.S. “These national security transition memoranda, attachments, and, perhaps most importantly, the postscripts, constitute an invaluable resource for policy makers and historians. ![]() history, Hand-Off is a must read for anyone who wants a good understanding of how foreign policy was formulated and implemented under President Bush.” - James A. An honest critique of both the strengths and weaknesses of that administration during a critical time in U.S. Bush, whom Steve served for four years as National Security Advisor and four years as Deputy National Security Advisor. Above all, he understands well what philosopher George Santayana meant when he said: ‘Those who do not learn history are doomed to repeat it.’ This Hadley-edited book, Hand-Off, is a frank examination of the eight years of foreign policy of President George W. “Stephen Hadley always has been and remains a thoughtful and candid public servant, one who puts his country’s national interest on the very highest shelf. Graham Allison, Douglas Dillon Professor of Government, Harvard Kennedy School ![]() “An impressive contribution to Applied History that shows the Bush administration learning from history to help subsequent administrations build on their success and learn from their failures.” Hand-Off will be an invaluable resource for scholars, students, policy analysts, and general readers seeking to understand afresh the Bush administration’s foreign policy, particularly in view of the records of the Obama, Trump, and Biden administrations. In a postscript to each memorandum, these same experts now in hindsight take a remarkably self- critical look at that Bush foreign policy legacy after more than a dozen years of watching subsequent administrations attempt to deal with the same vexing agenda of threats and opportunities– China, Russia, Iran, the Middle East, terrorism, proliferation, cyber, pandemics, and climate change-an agenda that still dominates America’s national security and foreign policy. Thirty of these Transition Memoranda, newly declassified and here made public for the first time, provide a detailed, comprehensive, and first-hand look at the foreign policy the Bush administration turned over to President Obama. Hand-Off details the Bush administration’s national security and foreign policy as described at the time in then-classified Transition Memoranda prepared by the National Security Council experts who advised President Bush. If you have an existing reservation and would like to rebook to an alternate date, just let us know. For their safety, however, the giraffes are typically not visible on rainy days. We are open rain or shine, and most animals don’t seem to mind the rain. What is your policy with respect to inclement weather? Inquire about this opportunity at the ticket booth when you embark on your expedition. Proceeds from our giraffe encounters help save wild giraffes in Africa. Thank you for your cooperation.ĭependent on prevailing conditions, you may have the option to feed our giraffes from the designated feeding platform. Most animals will approach vehicles to feed, however, we do ask that you keep your windows rolled up when you are in the giraffe and zebra reserve. Guests are expressly forbidden from feeding our animals anything else. This grain is available for purchase online or at the park. Our animals receive a specialty grain that is formulated to our exact specifications. We do not allow guests to sit in the back of an open-bed truck. We do allow soft-top Jeeps and convertibles, but the tops must be closed. Only windows may be opened when in the game reserves. Since you are sharing the same space with our animals and will be driving on gravel roads, we do not allow motorcycles, vehicles with an undercarriage lower than a standard sedan, open-top convertibles, vehicles without doors/roofs, or minivans with open doors. ![]() For these tour rates and reservations, please see our Group Tours & School Rates page. The only group rates available are for our Guided Safari Adventure tours and our Educational Safari Expedition tours, which are offered on Tuesday, Thursday, and Sunday mornings at 9:00 AM. In order to enjoy the full experience, we do not recommend arriving any later than 4:00 PM.ĭo you have an admission price per vehicle?Īll of our Drive-Through Safari admission rates are per person, not per vehicle. Please be advised that the park does not open until 9:00 AM, and the entry gates close at 5:00 PM. Please do not wait on the road. Your reservation allows you to drive through the park as many times as you like on the same day. If you are running late or arrive early, we will do our best to accommodate your party. In order to reduce traffic congestion, please arrive within the one (1) hour arrival window you selected. Your booking guarantees you entry to Safari Lake Geneva on the date of your reservation. Yes! As long as the total number of vehicles in your reservation does not increase, you may pay for additional people when you arrive for your safari. Our average guest is with us for 90 minutes to two hours.Ĭan I add additional people to my booking? The drive-through safari adventure allows you to drive your own vehicle through our wildlife reserves as many times as you like - so how long you visit with the animals is up to you! Your reservation guarantees entry to the park and is valid for the entire day. How long should I plan to spend on safari? To book a Guided Safari Adventure or Educational Safari Expedition, visit our Group Tours & School Rates page. The online reservation calendar indicates in real-time the number of spaces remaining. You can book the Drive-Through Safari Adventure online on the Tickets page. Visitation is currently by online reservation only. We do tend to sell out, especially on weekends and on both weekdays and weekends during the summer months, so it is best to book a few days in advance. If we are sold out, we will not allow guests into the park without a reservation. It reduces wait times and long lines in the animal reserves, and prevents our animals from being overfed. ![]() In order to provide the best possible experience for our guests, we do limit the number of cars we allow into the park each day. Why do I need a reservation for the Drive-Through Safari Adventure? Reservations for the Guided Safari Adventure and Educational Safari Expedition require a two-week advance notice. Cancellations show up on our website in real time. ![]() If you are unable to get a reservation for a specific day, keep checking the website for availability. Yes! All of our safari options require a reservation, so be sure to make your reservation online before you head to Safari Lake Geneva! We do tend to sell out, especially on weekends and on both weekdays and weekends during the summer months, so it is best to book a few days in advance. Refer to the Animals & Conservation page for the most up-to-date list of the animals you might spot on safari! ![]() In the diagram shown above, in the left side of transformation, reflection is performed on the blue pentagon first, outcome is the red pentagon and then translation is performed on the red pentagon and outcome is the green pentagon. Glide reflection is commutative, whether we glide first then reflect or we reflect first and then glide, outcome remains same. Triangle P’’Q’’R’’ is an outcome of glide translation performed on the triangle PQR. Reflection over the x-axis is performed on the triangle P’Q’R’. ![]() Therefore the coordinates of the triangle P’Q’R’ are P’(9, -3), Q’(6, -1) and R’(4, -4). In the above diagram, PQR is a triangle with coordinates of the vertices P(-1, -3), Q(-4, -1), and R(-6, -4). In the above diagram, translation (glide) performed on the foot, and then reflection across the parallel line of translation, then again glide followed by the refection, this foot steps are the typical example of glide reflection. ![]() In everyday life, a classic example of glide reflection is the track of footprints left in the sand by a person walking over it. Reflection in y = -x: (x, y) → (-y, -x).Therefore, we have to use translation rule and reflection rule to perform a glide reflection on a figure. Glide reflection is a composition of translation and reflection. Midpoint (midpoints remains the same in each figure) is preserved in a glide reflection.Collinearity (points stay on the same lines) is preserved in a glide reflection.Perpendicularity is preserved in a glide reflection.Parallelism is preserved in a glide reflection.Angle measure is preserved in a glide reflection.Distance is preserved in a glide reflection.Properties preserved (invariant) under a glide reflectionįollowing properties remain preserved in translation and reflection therefore also remain preserved in a glide reflection. Reflection and glide reflection are opposite isometry. From the four types of transformations translation, reflection, glide reflection, and rotation. Distance remains preserved but orientation (or order) changes in a glide reflection. Reflection transformation is an opposite isometry, and therefore every glide reflection is also an opposite isometry. Look at our example of this concept below.Īn opposite isometry preserves the distance but orientation changes, from clockwise to anti-clockwise (counter clockwise) or from anti-clockwise(counter clockwise) to clockwise. Whether you perform translation first and followed by reflection or you perform reflection first and followed by translation, outcome remains same.įor example, foot prints. Outcome will not affect if you reverse the composition of transformation performed on the figure. Commutative properties:Ī glide refection is commutative. Glide reflection occurs when you perform translation (glide) on a figure and followed by a reflection across a line parallel to the direction of translation. Glide reflections are essential to an analysis of symmetries. A glide reflection is – commutative and have opposite isometry. Glide reflection is the composition of translation and a reflection, where the translation is parallel to the line of reflection or reflection in line parallel to the direction of translation. Every point is the same distance from the central line after performing reflection on an object. Reflection means reflecting an image over a mirror line. Translation simply means moving, every point of the shape must move the same distance, and in the same direction. Therefore, Glide reflection is also known as trans-flection. First, a translation is performed on the figure, and then it is reflected over a line. Definition: A glide reflection in math is a combination of transformations in 2-dimensional geometry. |
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