project | microscópio diy desde que participei da primeira edição do curso biohack academy no garagem, eu vi que era possível fazer um microscópio de baixo custo apenas hackeando uma webcam velha e juntando materiais simples, desses que se encontram na papelaria. fiquei fascinado de cara, pois desde criança curto olhar coisas microscópicas, mas nunca tive um, nem nas escolas onde estudei. :’-( então o mundo diy bio veio me resgatar e vi que não existe só um, mas uma porrada de projetos bacanas de mics de baixo custo, mas qual vale a pena tentar fazer? testei váááááááários modelos em cursos e workshops no garagem e no meu querido olabi ao longo dos últimos anos. uns ficaram bons, outros uma merda, mas aprendi algumas coisas no caminho. a minha intenção aqui é dar uma compilada (não direi documentada, pois, pra variar, não documentei quase nada no processo…) e compartilhar com a geral. enjoy it! ficou lindão! ganha um prêmio quem souber o que é isso…conto no final do texto! cabeça de mosquito bunda de mosquito lentes
MAKE HOMEMADE SCIENCE TOYS AND PROJECTS Nimrud lens Hi reader in Canada, it seems you use Wikipedia a lot; I think that's great and hope you find it useful. This Wednesday we need your help. We depend on donations averaging $15, but fewer than 1% of readers give. If you donate just $3, you would help keep Wikipedia thriving for years. The price of your Wednesday coffee is all I ask. Our annual budget is minuscule compared to a lot of worthy causes, yet our impact is enormous. Maybe later Thank you! Close The Nimrud lens, also called Layard lens, is a 3000-year-old piece of rock crystal, which was unearthed in 1850 by Austen Henry Layard at the Assyrian palace of Nimrud, in modern-day Iraq.[3][4] It may have been used as a magnifying glass, or as a burning-glass to start fires by concentrating sunlight, or it may have been a piece of decorative inlay.[3] Description[edit] The Nimrud lens is on display in the British Museum. Interpretation[edit] See also[edit] Visby lenses References[edit] ^ Jump up to: a b c d e Layard, Austen Henry (1853). A.
The Kitchen Pantry Scientist The Golub Microscope Collection at the University of California, Berkeley Lab charts the anatomy of three molecular channels Using a state-of-the-art imaging technology in which molecules are deep frozen, scientists in Roderick MacKinnon's lab at Rockefeller University have reconstructed in unprecedented detail the three-dimensional architecture of three channels that provide a path for specific types of ions to travel across a cell's protective membrane. Because such ions are central to biochemical messaging that allows cells to communicate with one another, the findings have implications for understanding how muscles contract, how the heart maintains its rhythm, and many other physiological processes. In all cases, researchers used equipment at the Evelyn Gruss Lipper Cryo-Electron Microscopy Resource Center to capture and compile images of the molecules while they were frozen in a thin layer of ice. With this data, they determined the channels' structures in three dimensions, down to the level of individual atoms. The chloride ion channel: A subtle change, another way of working
The Quest for the Invisible: Microscopy in the Enlightenment - Dr Marc J Ratcliff From mice, clues to microbiome’s influence on metabolic disease | Scienmag: Latest Science and Health News MADISON, Wis. — The community of microorganisms that resides in the gut, known as the microbiome, has been shown to work in tandem with the genes of a host organism to regulate insulin secretion, a key variable in the onset of the metabolic disease diabetes. That is the primary finding of a study published this week (Feb. 14, 2017) in the journal Cell Reports by a team led by University of Wisconsin-Madison researchers Alan Attie and Federico Rey. The new report describes experiments in mice showing how genetic variation in a host animal shapes the microbiome — a rich ecosystem of mostly beneficial microorgannisms that resides in the gut — and sets the table for the onset of metabolic disease. "We're trying to use genetics to find out how bugs affect diabetes and metabolism," explains Attie, a UW-Madison professor of biochemistry and a corresponding author of the new study. Metabolic diseases such as diabetes have long been known to be influenced by both genes and diet. Media Contact
Infusoria Infusoria is a collective term for minute aquatic creatures such as ciliates, euglenoids, protozoa, unicellular algae and small invertebrates that exist in freshwater ponds. Some authors (e.g., Bütschli) used the term as a synonym for Ciliophora. In modern formal classifications, the term is considered obsolete; the microorganisms previously included in the Infusoria are mostly assigned to the kingdom Protista. Researchers have proposed that infusoria reproductive rates periodically increase and decrease over periods of time.[1] Aquarium use[edit] See also[edit] Animalcules References[edit] Bibliography[edit] Ratcliff, Marc J. (2009). External links[edit] You Physics Teachers Really Ought to Teach Numerical Calculations I love including numerical calculations in my introductory and advanced physics courses. I find that including coding in the introductory physics course forces students to think in different ways to better understand physics. Numerical calculations are such an integral part of real world physics that it would be wrong to not include them in the intro courses. And at this point, I think my colleagues have run out of excuses for not including numerical calculations in these classes. What is a numerical calculation? This is the way things work in the “real world.” I introduce students to numerical calculations by instructing them to create their own code to solve a problem. Student Feedback at the Beginning Picture the scene. At this point, students have many concerns. Other students deflect their anxiety into another issue like claiming they are a Mac person or a PC person, but python is platform agnostic (another thing that makes it great). Sometime Later, While Working on Projects
Anton van Leeuwenhoek - History of the compound microscope Anton van Leeuwenhoek (1632 - 1723) was a Dutch tradesman and scientist, best known for his work on the development and improvement of the microscope and also for his subsequent contribution towards the study of microbiology. Using handcrafted microscopes, Anton van Leeuwenhoek was the first person to observe and describe single celled organisms, which he originally referred to as animalcules (which we now refer to as microorganisms). He was also the first to record and observe muscle fibres, bacteria, spermatozoa and blood flow in capillaries (small blood vessels). Born in Delft, the Netherlands, on October 24, 1632, Anton van Leeuwenhoek (in Dutch Antonie van Leeuwenhoek) was the son of a basket maker. At the age of 16, van Leeuwenhoek secured an apprenticeship with a cloth merchant in Amsterdam as a bookkeeper and casher. The Father of Microbiology Van Leeuwenhoek's microscope Discovery of single-celled organisms