background preloader

$10 Smartphone to Digital Microscope Conversion!: 9 Steps (with Pictures)

$10 Smartphone to Digital Microscope Conversion!: 9 Steps (with Pictures)

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

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 Golub Microscope Collection at the University of California, Berkeley The Quest for the Invisible: Microscopy in the Enlightenment - Dr Marc J Ratcliff 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]

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

O que pensam os professores brasileiros sobre a tecnologia digital em sala de aula? - Reportagens TPE - Todos Pela Educação Sobrecarga de trabalho, infraestrutura e formação insuficiente freiam uso da tecnologia digital na escola Mais da metade (55%) dos professores da rede pública brasileira utilizam tecnologia digital regularmente em sala de aula, e 54% deles afirmam que usariam mais esse recurso, desde que isso não implicasse em maior carga de trabalho – um número igual de docentes tem a percepção de que o uso de ferramentas tecnológicas acarreta maior carga de trabalho, e para 45% deles isso aumenta a pressão em suas funções. Além disso, para a maioria dos professores os aspectos limitadores mais frequente para o uso de recursos tecnológicos são a falta de infraestrutura – como poucos equipamentos (66%) e velocidade insuficiente da internet (64%) – e falta de formação adequada – 62% nunca fizeram cursos gerais de informática ou de tecnologias digitais em Educação. Formação O potencial pedagógico Confira mais dados da pesquisa aqui. Sobre o Todos Pela Educação – www.todospelaeducacao.org.br

Eyepiece A collection of different types of eyepieces. The eyepieces of binoculars are usually permanently mounted in the binoculars, causing them to have a pre-determined magnification and field of view. With telescopes and microscopes, however, eyepieces are usually interchangeable. By switching the eyepiece, the user can adjust what is viewed. For instance, eyepieces will often be interchanged to increase or decrease the magnification of a telescope. Eyepieces also offer varying fields of view, and differing degrees of eye relief for the person who looks through them. Eyepiece properties[edit] Several properties of an eyepiece are likely to be of interest to a user of an optical instrument, when comparing eyepieces and deciding which eyepiece suits their needs. Design distance to entrance pupil[edit] Elements and groups[edit] The first eyepieces had only a single lens element, which delivered highly distorted images. Internal reflection and scatter[edit] Chromatic aberration[edit] Focal length[edit]

Baconian method The Baconian method, commonly known as the scientific method, is the investigative method developed by Sir Francis Bacon. The method was put forward in Bacon's book Novum Organum (1620), or 'New Method', and was supposed to replace the methods put forward in Aristotle's Organon. This method was influential upon the development of the scientific method in modern science; but also more generally in the early modern rejection of medieval Aristotelianism. Description in the Novum Organum[edit] Bacon's view of induction[edit] Bacon's method is an example of the application of inductive reasoning. He argues in the Novum Organum that our only hope for building true knowledge is through this careful method. While he advocated a very empirical, observational, reasoned method that did away with metaphysical conjecture, Bacon was a religious man, believed in God, and believed his work had a religious role. Role of the English Reformation[edit] Approach to causality[edit] Refinements[edit] Notes[edit]

Christiaan Huygens, Oeuvres complètes. Tome XIII. Dioptrique dans l'eau de gingembre quantitè de tres petits avec assez de mouvement, point d'autres. dans l'eau de poivre comme devant, scavoir des grands H, mais les uns de moitiè plus grands que les autres. des K fort vistes. Il y en a qui demeurent souvent longtemps immobiles puis courent comme les autres. Aug. 24. l'eau de gr. peu de grands. Eau de ging. 2 A comme le 22 Jul. beaucoup de K et des forts petits mais moins que hier. Eau de poivre comme hier. [Fig. 114.] [Aug.] 26. dans l'eau de poivre comme devant. Eau de Gingembre infinitè de K tres vistes, et quelques A [Fig. 114]2) assez grands et fort transparents. Dans l'eau de pluie ou j'avois mis il y avoit 2 jours du Coffè broiè comme dont on prend dans la boisson, je trouvay tout plein de tres petits, à peine visibles, qui fourmilloient et remuoient continuellement1). il y en avoit par milliers. et un un peu plus grand, qui alloit mediocrement viste. 27 Aug. Eau de gr. quelques H, et quelques K. Eau de Coffè, infinitè de tres petits comme hier.

Project Gutenberg

Related: