The Best Science Books

An interesting post from John Dupuis discusses several lists of the best and worst science books. Some of the best books from the lists, based on importance, what strikes my mood right now, what I enjoyed… (those I list could easily change on another day):

Please share your favorite science books.

Related: our science and engineering book page2005 Science book gift suggestions (from the list above The Selfish Gene, Chaos, A Brief History of Time and The Mismeasure of Man are likely the best gifts for the widest audiences).

Science Saves Driver from Ticket

Driver beats fine with schoolboy science:

“The photographs show the back of my car and the white lines at the side of the road. The second photograph shows that it was taken 0.5 seconds later by which time I had moved five white lines along.”

He remembered from school you could calculate speed if you had the correct distance and time. He said he looked on the internet and found an official website stating that lines on the motorway are spaced two metres apart.

“That meant I had driven 10 meters in 0.5 seconds or 20 meters per second. That works out at precisely 44.8mph.”

Are Our Vegtables Less Nutritious?

Grandma’s Veggies May Have Been More Nutritious:

“Of the 13 nutrients that we were able to study, we found statistically reliable declines in six of the 13,” he says. Levels of other nutrients stayed roughly constant over the years.

But a big word of caution: USDA nutritionist Joanne Holden says those 1950 numbers may not be trustworthy. For one thing, measurement techniques have changed, possibly changing the results. In addition, she says, no one knows whether the vegetables measured in 1950 were an accurate sample of the American diet.

100 Innovations for 2006

Popular Science has selected the Best of What’s New. Previous posts talk about some of these, such as: One Laptop Per Child, New Soccer Ball, Grand Canyon Skywalk. And they discuss other breakthroughs like: Memory Spot, Sony Reader. They seem to be stretching a bit to reach 100 – still there are some cool items and it is a fun read. And where are some others: Lifestraw, Lego Mindstorm, Re-engineered Wheelchair

Related: Inventions of the Year

Lifestraw

Lifestraw is an excellent example of an engineered appropriate technology solution.

At any given moment, about half of the world’s poor are suffering from waterborne diseases, of which over 6,000 – mainly children – die each day by consuming unsafe drinking water.

Today, more than one billion people of the world’s population are without access to safe water, causing lack of safe water supply to rob hundreds of women and girls of dignity, energy and time.

Safe water interventions, therefore, have vast potential to transform the lives of millions, especially in crucial areas such as poverty eradication, environmental upgradation, quality of life, child development and gender equality.

Lifestraw is a filter solution that allows water to be purified for about 6 months (before needing to be replaced) at a cost of just $3.50.

Related: Smokeless Stove Uses 80% Less FuelClean Water FilterNew straw to kill disease as you drinkSafe Water Through PlayMillennium Development Goals

Far Eastern Leopard – Rarest Big Cat

World’s Rarest Big Cat Captured:

The team, led by biologists from the New York-based Wildlife Conservation Society, caught the 100-pound (45-kilogram) male in a snare last week while studying Siberian tigers in the Russian Far East, 20 miles (32 kilometers) from the Chinese border.

The chance capture gave biologists a priceless opportunity to study the elusive feline, and Melody Roelke (below), a specialist in big-cat genetics with the U.S. National Institutes of Health, wasn’t shy about getting a closer look.

Among the scientists’ main concerns is whether Far Eastern leopards, also known as Amur leopards, can continue to sustain their tiny, isolated population, or whether disease and inbreeding may eventually wipe out the cats.

Related: Jaguars Back in the Southwest USABig Cats in AmericaTabby Cat and a Black Bear

Leadership Initiatives for Teaching and Technology

LIFT2 (Leadership Initiatives for Teaching and Technology) is an innovative professional learning program for middle and high school science, technology, engineering and math (STEM) teachers. It is designed to help experienced and developing teachers relate classroom curriculum to authentic and relevant applications in the 21st Century workplace.
The program is based on a unique combination of graduate coursework, company sponsored externships in industry, the cornerstone of the program, and membership in an active community of learners.

Related: Direcotry of resources for k-12 STEM teachersReport on K-12 Science Education in USAK-12 Program for Engineering StudentsPurdue Graduate Fellows Teach Middle School ScienceMath and Science Teacher Shortage

What is an Extremophile?

What is an Extremophile?

An extremophile is an organism that thrives under “extreme” conditions. The term frequently refers to prokaryotes and is sometimes used interchangeably with Archaea.

The term extremophile is relatively anthropocentric. We judge habitats based on what would be considered “extreme” for human existence. Many organisms, for example, consider oxygen to be poisonous.

The site includes interesting photos and details on all sorts of extremophiles: Anaerobe (don’t require oxygen) – Endolith (live inside rocks) – Thermophile (enjoy over 40 °C).

Related: Types of MicrobesLife Untouched by the Sun

Illusion of Explanatory Depth

The “Illusion of Explanatory Depth”: How Much Do We Know About What We Know? (broken link was removed)

Often (more often than I’d like to admit), my son (Darth Vader over there on the left) will ask me a question about how something works, or why something happens the way it does, and I’ll begin to answer, initially confident in my knowledge, only to discover that I’m entirely clueless. I’m then embarrassed by my ignorance of my own ignorance.

I wouldn’t be surprised, however, if it turns out that the illusion of explanatory depth leads many researchers down the wrong path, because they think they understand something that lies outside of their expertise when they don’t.

Great stuff. It took me a lot longer to stop asking why, why, why than most kids. I only gave up after years of repeated obvious clues that I was not suppose to ask why (once I aged past 5 or 8 or something – I actually have no idea when it is no longer desired). But most days I, curious cat, want to ask how does that work, why do we do that, why can’t we… I just stop myself. But it does mean I asked myself and realized I don’t really know. So I am at least more aware how little I really know, I think I am anyway.

The internet is a great thing. Google doesn’t mind if you ask as many questions as you want.

Related: Theory of KnowledgeFeed your Newborn Neurons

Nanotechnology Experiment Accidentally Discovers Forger Fix

Security that is small and imperfectly formed by Michael Pollitt:

“One day the chip fell off the paper backing that it was being tested on and the laser just hit the paper instead. Whereas we would have expected to have got no signal, we actually got a signal that had all of the right characteristics for a security device. That was enormously surprising,” says Cowburn.

Rather than reaching for the glue, Cowburn investigated further and found that ordinary paper gave robust security signatures. The random pattern of the paper fibres scattered back the laser beam to detectors, giving far better results than the microchip.

After tuning the laser system, he also discovered that the probability of two pieces of paper producing an identical reading was unimaginably remote.

Related: Discoveries by AccidentStatistics for Experimenters