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January 21, 2008

Promethium by Louise Cass

The Periodic Table Printmaking Project was a project started and coordinated by Jennifer Schmitt, aka AzureGrackle.

Ninety-six printmakers of all experience levels, have joined together to produce 118 prints in any medium; woodcut, linocut, monotype, etching, lithograph, silkscreen, or any combination. The end result is a periodic table of elements intended to promote both science and the arts.

This very cool project, finished for now, received the works of printmakers from eight different countries: Australia, Canada, England, Germany, Italy, Japan, Scotland and United States. The project has a blog and a Flickr group. (via IWR Art Links and MetaFilter)


Related posts:
Periodic Table
Periodic Tables
Links about comics
More Periodic Tables
The Visual Elements Periodic Table

October 01, 2007

Möbius Transformations Revealed

Möbius transformations revealed is a neat a short video by Douglas Arnold and Jonathan Rogness, and it's shared under a creative commons Attribution-Noncommercial-Share Alike 3.0 license. It depicts the beauty of Möbius transformations and shows how moving to a higher dimension reveals their essential unity.

The video was a winner in the 2007 Science and Engineering Visualization Challenge. The video (bellow) it's also available on the site to download in high resolution (130 MB). It was built primarily using POV-Ray and Mathematica, and the soundtrack (from Schumann's Kinderscenen, Op. 15, I) is performed by Donald Betts and distributed by Musopen.

September 28, 2007

Irish moss

In the journal's 28 September 2007 issue, Science, in partnership with the National Science Foundation, is pleased to present the winners and honorable mentions in the fifth annual Science and Engineering Visualization Challenge. Each winner has a small article on Science with the image and its brief story. The articles describe the accomplishments of the creative and gifted scientists, artists, and others who put the winning entries together.

The amazing images are also presented as an online slide presentation and a photo gallery at National Geographic. About the winning image above:

This winning photo , taken with a digital point-and-shoot camera, shows a piece of Irish moss (Chondrus crispus) collected by botanist and molecular ecologist Andrea Ottesen off the coast of Cape Breton Island, Nova Scotia. The 15-centimeter-wide red alga seems exotic in this abstract portrait, but it is one of the most common seaweed species on the Atlantic coast.

Related posts:
Visions of Science 2005
Dennis Kunkel Microscopy
Life: A Journey Through Time
Art of Science Competition: 2006 Gallery
Top 10 Microphotographs of Living Things

September 17, 2007

Les Utopies de la Navigation Aérienne au Siècle Dernier

The image set Early flight at Wikipedia contains two beautiful series of French collecting cards with pictures of events in ballooning and parachuting history. The series contain images of events from 1783 to 1846. Printed between 1890 and 1900 by Romanet & cie, the cards are available on high resolution.

The collecting cards with curious illustrations of flying machines and important events of its history are part of the Library of Congress Prints and Photographs Division. The set 1re série, was part of the exhibition The Dream of Flight, which contains even more images, documents and pictures of aviation history. Check also the List of early flying machines at Wikipedia.

July 12, 2007

Pálido Ponto Azul - Pale Blue Dot

I don't have a vast knowledge about astronomy. From time to time I find some interesting news to post at the astronomy category. I follow the top news of New Scientist, Popular Science, Scientific American and the fantastic pictures of Astronomy Picture of the Day. And that's all.

I wasn't part of the generation who watched Cosmos on TV. To be sincere, and his fans will have to forgive me, I just knew about Carl Sagan many years after his success to popularize science. And let me scare you a little more: I never watched the series or read his books (until now). However, before you start thinking of throwing some rocks on me, let me say something: I'm "fixing" this problem.

I started reading his last book, Pale Blue Dot: A Vision of the Human Future in Space. Partly because I'm curious and it was already on my shelf. But I had other reasons, for instance, it has beautiful images, it's not only about astronomy, and he was a great writer. I don't want to impugn its merits, no way, but I 'd say it's almost "astronomy for dummies".

For a first specific contact with that area, it looks perfect to me, because it does the most important part, as all good books do, it gets your attention and keeps you interested. I'm reading a Portuguese edition, hardcover, published in 1996 that was a gift, and now it's precious. This book is out of print in Brazil and I couldn't find any other version of it. It seems that astronomy isn't so popular in Brazil as I thought.

Carl Sagan at Cosmos: A Personal Voyage

If I asked someone how should I have first contact with astronomy, that person would probably suggest me the book Cosmos or the TV series. And I said probably, because it is excellent, at least the bits I watched. As part of my plan to fix my lack of the knowledge in this area, I did a quick research about the "Cosmos" videos, since it isn't available in DVD here. It was quick because, you know how those things are nowadays, the videos appear from nowhere, and these did.

My first impressions of Cosmos: amusing, interesting and it's not only about astronomy. It's also about history, culture, biology and about life. I also have to say that Carl Sagan's voice was hypnotic. As far as I can tell, Sagan should have been a fantastic teacher, since the videos are very didactic and his introductions to every subject, captivating. And last, but not least, he already pointed out an important issue, specially nowadays: ecology.

The new age music presented in the episodes is a little too calm for my taste, but it perfectly fits them. If you have the chance to buy the DVD series, do it. Otherwise, take a look at the playlist I did, with all the episodes on-line, with Japanese subtitles. Of course, they won't stay there forever, so start watching them now, or again if you already did, and then buy it.

Carl Sagan at the Very Large Array

April 01, 2007

Americans Defeat Russians in First Space Quidditch Match

Hi guys, I hope you are having a loving night - or day. I selected some interesting news about internet and technology to blog in this amusing day. Let's go to the latest news.

- Astronomy Picture of the Day posted an incredible picture of Americans Defeat Russians in First Space Quidditch Match (image above). But it doesn't beat Water on Mars.

- Following the steps of several social sites, Slashdot started to use a rating system similar to Digg, but open to everybody - no registry is required. Choose an article and vote. (image)

- From the French site Techno-Science: Découverte d'un miroir gravitationnel: observer la Terre du passé (discovered a gravitational mirror). The text is in French, but the very illustrative image has the text in English.

- Interesting and scary news from Mobile Gazette: Will Mobile Phones Destroy the Earth? The interview with the Professor Dummkopf explains why we should be afraid. (screenshot)

- If you are a Metafilter user don't forget to visit Ask MetaFilter and help to solve some questions. The doubts could be interesting for non users too.

- PC Magazine has a very nice article about Haptics Turns Phones into Weapons.

slashdottit

- The Swedish torrent site The Pirate Bay announced in its blog: Finaly a permanent solution for the hosting. Today we announce that we're moving some of our servers to the North-Korean Embassy in Stockholm, Sweden. (screenshot)

- The Australian on-line community Gush decided to redo Gush as a myspace page because it's a place where there's heaps of young people, so they can get so many more people involved! (screenshot)

- The excellent internet and web 2.0 site TechCrunch Has Acquired FuckedCompany.com. More details, including the press release on the Techcrunch and Fuckedcompany 2.0 sites. (image)

- Reg Hardware, a The Register site, says that Research reveals mislaid microprocessor megahertz. Not only are chip companies regularly releasing ever-faster microprocessors, but new research has revealed that modern CPUs actually lose megahertz over time.

- The Warcraft Universe wiki site, WoWWiki, was redesigned, changed the name to MeoWWiki and it looks much better now! (screenshot)

- This sounds great: New Eco-Friendly Computers, a Sharpened article.

- Whirlpool News says Mandatory ISP filtering will block P2P. The federal government has shocked industry by rushing a bill through parliament that will compel ISPs to block all P2P traffic. (screenshot)

Standard Gravitational Lensing

March 15, 2007

Borneon clouded leopard

Big cats you didn't know, from BBC News: Island leopard deemed new species. Clouded leopards found on Sumatra and Borneo represent a new species, research by genetic scientists and the conservation group WWF indicates.

Supporting evidence came from examination of fur patterns. Leopards from Borneo and Sumatra have small "clouds" with many distinct spots within them, grey and dark fur, and twin stripes along their backs.

Their mainland cousins have large cloud markings on their skin with fewer, often faint, spots within the cloud markings, and are lighter and more tawny in colour.[...]

WWF, which maintains a large conservation operation on Borneo, estimates there are between 5,000 and 11,000 clouded leopards on the island, with a further 3,000 to 7,000 on Sumatra.

The BBC has also a video of this news. More about it at Yahoo! News, with another video.

February 11, 2007

Dissection of a human body

Women Physicians: 1850s - 1970s. This interesting collection contains thousands of visual registries divided in five areas: the early years of the college; student life, academic life and student culture; racial and ethnic diversity among women physicians; missionary and public health work, at home and abroad; and medical women in the military. (via Plep)

This collection consists of correspondence, scrapbooks, clippings, college records, images, diaries, publications and ephemera documenting the history of women physicians beginning with the first medical school for women, Woman's Medical College of Pennsylvania (WMCP). Founded in 1850, WMCP trained thousands of women physicians who practiced in all parts of the world, and provided rare opportunities for women to teach, practice, perform research and manage a medical school. WMCP was also a long time refuge for women students and faculty who faced quotas and discrimination elsewhere.

February 02, 2007

It Came from the Lab

Popular Science article: The Scariest Ideas in Science by Laura Allen. Undead viruses! Killer foxes! Soldiers who never sleep! This is no horror movie - it's today's scientists at their most daring

Maybe we saw The Andromeda Strain a few too many times in our formative years, but we can’t help shivering when we hear about microbiologists reanimating long-dormant lethal viruses. And those biologists working to make human limbs grow back: Haven’t we seen that film? Don’t the guys in lab coats all die in the first reel? They may sound cinematic, but the incredible research projects on the following pages are not imaginary. They’re real, funded ventures by respected scientists. They have perfectly rational goals. They also happen to creep us out.

The amusing text lists 6 scariest ideas: Reanimated Infection, The 22-Hour Workday, Merciless Robot Soldiers, Planetary Solar Shield, The Ultimate Vicious Carnivore and Grow New Appendages. Good article with great illustrations inspired in vintage horror and sci-fi B-films, created by Michael Koelsch.

Mouse retina

From Scientific American, amazing pictures at Top 10 Microphotographs of Living Things: Prize-winning microviews of everything from mouse retinas to slime mold. The catchy "Mouse retina" photo above won the first prize.

If you ever played with a starter microscope set as a kid, you may have felt the amazement of creating a miniature world simply by placing a drab little speck of matter under its objective lens. That same sense of wonder surely drove the winners of the 2006 Olympus BioScapes Digital Imaging Competition, an annual contest for the best microphotographs of living (or once living) things.

January 31, 2007

Dispersion prism

That's neat. A group of physicits, coordenated by Robert P. Crease, a member of the philosophy department at the State University of New York at Stony Brook and the historian at Brookhaven National Laboratory, was invited to chose the the most beautiful experiment of all time. The result was publish in a pape by George Johnson in The New York Times and that's the result of Science's 10 most beautiful experiments:

1. Double-slit electron diffraction
2. Galileo's experiment on falling objects
3. Millikan's oil-drop experiment
4. Newton's decomposition of sunlight with a prism
5. Young's light-interference experiment
6. Cavendish's torsion-bar experiment
7. Eratosthenes' measurement of the Earth's circumference
8. Galileo's experiments with rolling balls down inclined planes
9. Rutherford's discovery of the nucleus
10. Foucault's pendulum

The site contains short explanations of the physical experiments with computer animations. More amusing scientific experiments at List of famous experiments and Timeline of Fundamental Physics Discoveries. (via del.icio.us)

January 30, 2007

Mathieu Joseph Bonaventure Orfila

Poison was a fascinating way to kill people though the history. Emperors and kings had tasters to avoid eat poisoned food; reigns were destroyed thanks to different poisons. If you had an enemy and wanted to eliminated him, you just need to choose the right one. Poison was a very efficient way to kill people without leave traces. Until Mathieu Joseph Bonaventure Orfila appears.

The Spanish-born French toxicologist and chemist Mathieu Orfila (1787–1853) is the founder of the science of toxicology. Thanks to him and his primordial studies, we know much more today about poisons, their effects and how to reverse the damaged of some of them.

Orfila worked to make chemical analysis a routine part of forensic medicine, and made studies of asphyxiation, the decomposition of bodies, and exhumation. He helped to develop tests for the presence of blood in a forensic context and is credited as one of the first people to use a microscope to assess blood and semen stains. He also worked to improve public health systems and medical training.

Traité de Médecine Légale

He wrote the first medical treatise devoted solely to the subject of toxicology in 1813: Traité des poisons. Tirés des règnes mineral, végétal et animal or Toxicologie générale. The Crime library explain the importance of the book:

In it, he summed up everything known about poisons at the time and offered classifications. He had tried to demonstrate the various tests for poison detection and had found them to be highly unreliable. Assuming that toxicology was not yet a real science but could become one, he refined Rose's method to achieve greater testing accuracy. It was Orfila who showed with tests on animals that after ingestion, arsenic gets distributed throughout the body. His fame won him a prominent position at Paris University, where he started to consult on criminal cases.

And to finish this post, a very nice list of The Best: Deadly Poisons, Ingested or Inhaled - ten powerful substances, from Botulinum (Botulinum toxin) to Compound 1080 (Sodium fluoroacetate).

January 29, 2007

Look Around You

Do you remember those science videos you watched at school? What do they look like in your mind? Did they look naïf? Do they now seem badly produced, dated? You may even think that they would look funny nowadays. If that is the case, you are not the only one. There is a BBC series called Look Around You . It's a satire of / homage to 1970s and early 1980s educational films and schools programmes, with a different scientific subject being discussed in each episode, or "modules" as they are referred to in the series.

Look Around You - The Brain

Mixing real theories, with absurd situations, nonsense experiments and a great mise en scène, Look Around You looks like a real 1970's documentary, specially if you watch them while distracted. They did a perfect reconstruction of those old documentaries: clothes, colours, the incidental music, the camera movement, make-up, edition, narration, objects... it's terrific. The episodes of the first season, produced in 2002, are hilarious, starting with their nonsense openings.

The first series is composed by eight episodes and a pilot of 20 minutes about Calcium. They were presented in the following order: Maths, Water, Germs, Ghosts, Sulphur, Music, Iron and The Brain. You don't need to watch them in sequence, and I highly recommend you watch at least one of them. They are also available at YouTube in a playlist. (Thanks Dri!)

Ramsden Friction Machine

SparkMuseum displays the collection of vintage radio and scientific apparatus of John Jenkins. Early wireless, radio, scientific and other electrical items up to about 1920 (including books and other publications). His collection of 1910's and 1920's horn Loudspeakers is beautiful. The site is a kind of delightful walk through physics history of XIX and beginning of XX century with pictures of pretty inventions. (via All about nothing)

January 28, 2007

Charles Darwin c. 1854

What do you know about Charles Darwin and darwinist? Not much? Well, that's your lucky day. The Complete Work of Charles Darwin Online provides Darwin's complete publications, many handwritten manuscripts and the largest Darwin bibliography and manuscript catalogue ever published. And before you start saying that you need time to read the material available, go to the Audio Darwinpage that provides links to free audio mp3 files of Darwin's works for downloading.

The Expression of the Emotions

Other places with Darwin's works, in case you want a different support, or other versions: Project Gutenberg, Wikisource, Internet Archive and Read Print.

January 18, 2007

blueberries

When I saw the link to 'Superfoods' Everyone Needs I thought I was going to find a list with many vegetables and nuts that I don't eat. However, the list is surprisingly better than I imagined: beans, blueberries, broccoli, oats, oranges, pumpkin, salmon, soy, spinach, tea (green or black), tomatoes, turkey, walnuts and yogurt. Not bad, right? Excluding soy and spinach I can eat them, in one way or other. Some of the reason to eat them:

When incorporated into your regular daily diet, these foods, says Pratt, can stop some of the changes that lead to diseases such as diabetesdiabetes, hypertensionhypertension, Alzheimer's, and some cancers. "I picked them out after researching all of the world's healthiest diets: for example, Japanese diets, Mediterranean diets, and even some of the healthier dietary patterns in the United States," he says. "I noticed that it's the same food groups wherever you live."

(via Digg)

January 13, 2007

Good news for me: Bilingualism delays onset of dementia.

People who are fully bilingual and speak both languages every day for most of their lives can delay the onset of dementia by up to four years compared with those who only know one language, Canadian scientists said on Friday.
Researchers said the extra effort involved in using more than one language appeared to boost blood supply to the brain and ensure nerve connections remained healthy – two factors thought to help fight off dementia.
[...] Bialystok stressed that bilingualism helped delay the start of dementia rather than preventing it altogether.
Psychologist Fergus Craik, another member of the team, said the data showed that being fully bilingual had "a huge protective effect" against the onset of dementia but he added that the study was still a preliminary finding. The team plans more research into the beneficial side effects of bilingualism.

That sounds like an incentive to make more people learn other languages and use them frequently.

January 05, 2007

Newton and Einstein finger puppets

I never had finger puppets. Well, never is too late, right? I found some at Think Geek that look cool: Great Scientists Finger Puppets. I will be able to play with Charles Darwin, Albert Einstein, Marie Curie and Isaac Newton.

Each finger puppet is 4" of adorably intelligent fun, with clothes, a face, and sometimes even facial hair! They also feature a magnet sewn into their brains, so you can stick them to a refrigerator, a metal lamp, or possibly your cybernetic appendage (or you can literally put their heads together for an all night brainstorming session). We have made a scientific guess that if you put them on your fingers when you type, only genius thoughts will be written.

January 04, 2007

Popsci Periodic Table

I never had any good chemistry teachers when I was in school. When I was in junior high even the book wasn't attractive: a big book with a grey cover, with few illustrations and no colours, even the periodic table was grey! Years later I bought another chemistry book on my own, very colorful, with a nice cover and many illustrations. After that, chemistry and the periodic table started to be more interesting.

For me, the idea of a periodic table is more brilliant than the table itself, maybe because I like things organized and the logic of it is fascinating. I wasn't very lucky with my teachers, or the first periodic table that I saw, but kids nowadays have many amusing places from where to learn.

For instance, this interactive periodic table, from Popsci has 93 element samples from the collection of PopSci contributing editor Theodore Gray, who spent four years assembling and photographing them. (via Make) You can't have this interaction in a book, however you can have pictures that represent of each element and descriptions of them - that table can be order as a poster.

Another great example is The Visual Elements Periodic Table. That interactive has just images to represent the elements and the chemical data for individual elements can be obtained by following the data link from the web page belonging to that element. I felt in love for it, when I saw it for the first time. That site also has an article with a brief History of The Development of the Periodic Table.

Woodgrain

And my last example of interactive table: The Wooden Periodic Table. Yes, wooden table is the name and the design of it, however it is interactive and the site is awesome. It has a large collection of chemical elements and examples of their applications, common and uncommon.There are 1074 samples, 119 elements, 103 minerals, 14 stories, 513 rotatable images, 269 smooth rotations, 57 videos, 56 sounds. It think it's good enough to get the attention of any students, supposing that he or she is a normal one.

The web is full of good information about it. Among the tons of sites there are WebElements Periodic Table, a whole site just about it with tools, forums, news, blog and a shop for the enthusiasts, with a lot of cool stuff like chocolate T-shirt with the formula and structure of theobromine - it definitely goes to my wishlist.

There are other places that show it with time of discovery of elements. Sites with classic models that show pictures that represent each element after mouse-over, with options to download, very didactic sites for kids and sites with lists of periodic tables. And if you are looking for a any kind of periodic table, including those with specialized emphasis (Astronomy, Biological, Oceanographic, geological), historical interest, unusual designs and books, news, songs, softwares or projects about it, that is the right place.

Talking about unusual designs, there is 3D Periodic Table of the Elements, where the element names are continuously arranged on three circular surfaces representing the electron orbits of an atom. There are also the Extended Periodic Table of undiscovered elements: With each newly discovered element and with the advance of research and technology, the picture of the periodic table has grown into an important construct underlying all areas of science as well as the mathematics and informatics.

Periodic Spiral

The Western Oregon University has a list of Alternative Periodic Tables, with a triangular form, a 3-D model, a spiral form and a physicists model, but unfortunately the external links are broken (at least for me). And The Periodic Spiral:

The Periodic Spiral | envisions a remedy to the flaws in conventional periodic tables by illustrating hydrogen's ambiguous relationship to the noble gases and halogens while recognizing its relationship to the alkali metals; it also fully integrates the lanthanons and actinons into the design.[...]
While there are | many versions of the periodic table on the Web, the Periodic Spiral is the most comprehensive in its coverage of the elements and their interplay, and most efficient in enabling the user to access myriad informational categories with the click of a mouse.

The New York Times has a graphic explaining how the periodic spiral works. (via Make)

But that's not enough, there are also the alternative periodic tables, like this very cool Periodic Table of the Operators, by Mark Lentczner, based in Perl language; the Periodic Table of the Keys, from an old and now dead keyboard I suppose; and The Periodic Table of Comic Book that goes from Hydrogen to Lawrencium.

Food is also a great issue to be used to create new periodic tables. Some examples: those posters of Periodic Table of Desserts, Vegetables, Fruits and Nuts and a periodic table of storing produce. Or the Periodic table of candy that is perfect for kids - I would change the element 60, Sa Salt Water Taffy, for the Haribo's Saure Bohnen I'm eating right now. Or a Periodic Table of Dessert with the structures of some of them, like mousse and icecream. And, a very important one, Table of condiments that periodically go bad.

Periodic table of candy

For those that like of some silly stuff, try Periodic Table Compliance, a generator of combinations of elements that fit to your name. And, of course, I can't forget this, there is also the famous, and excellent book, nominated as the best science book ever: Il Sistema Periodico (The Periodic Table), by Primo Levi.

January 02, 2007

The Darwin Awards

It's always a pleasure discover the winners of The Darwin Awards and see how far stupidity can go. Have no idea of what is? Let me introduce you to this unusual "contest" with the Wikipedia definition:

A Darwin Award is a tongue-in-cheek "honor" given to people who supposedly improve the human gene pool as part of the natural-selection process by accidentally killing or sterilizing themselves during a foolish or careless mistake.

They announced the 2006 Darwin Awards "winners", and the prize went to High on Life:

(3 June 2006, Florida) Two more candidates have thrown themselves into the running for a Darwin Award. The feet of Jason and Sara, both 21, were found protruding from a deflated, huge helium advertising balloon. Jason was a college student, and Sara attended community college, but apparently their educa