science and technology

Biology’s cruel joke goes something like this: As a teenage body goes through puberty, its circadian rhythm essentially shifts three hours backward. Suddenly, going to bed at nine or ten o’clock at night isn’t just a drag, but close to a biological impossibility. Studies of teenagers around the globe have found that adolescent brains do not start releasing melatonin until around eleven o’clock at night and keep pumping out the hormone well past sunrise. Adults, meanwhile, have little-to-no melatonin in their bodies when they wake up. With all that melatonin surging through their bloodstream, teenagers who are forced to be awake before eight in the morning are often barely alert and want nothing more than to give in to their body’s demands and fall back asleep. Because of the shift in their circadian rhythm, asking a teenager to perform well in a classroom during the early morning is like asking him or her to fly across the country and instantly adjust to the new time zone — and then do the same thing every night, for four years.

Signs we need to improve the amount (and quality) of science coverage in media:

  • In a March 2011 survey, two-thirds of Americans couldn’t name a single living scientist 
  • From 2007-2010, science/technology/environmental topics accounted for only 3% of all news stories (and only 2% in 2011).
  • Though 87% of scientists support the idea, only 32% of the U.S. public believes in natural selection playing a role in evolution
  • While 97% of scientists agree, only 41% of the U.S. public believes that climate change is caused by human activities.

Louise Lief, on why this matters:

If people do not know scientists or understand how they work, it follows that they are unlikely to make informed choices on public policy issues or support basic scientific research to address vital issues like climate change and conservation.

More about Louise’s project to improve science in journalism here.

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The Smoke Angels.

Wingtip vortices shown in flare smoke left behind a C-17 Globemaster III.

How does an aircraft fly? Think of it like this, due to the design of the wing, larger number of air molecules are hitting the bottom portion of the aircraft than the top.

As a result, a upward force acts on the wing, hence the wing lifts!

This works fine till we get to the wing tips.

In the wingtip, the air from a higher pressure wants to move to the region of lower pressure. And as a result, this forms vortices ( fancy name for the swirling motion of air ) known as Wingtip Vortex. ( because its formed in the wing tips!!! )

And it is due to the ramification of this, that we obtain those gorgeous smoke angels. Pretty cool huh ?

Have a great day !

We now know that 24 hours without sleep, or a week of sleeping four or five hours a night induces an impairment equivalent to a blood alcohol level of .1 percent. We would never say, ‘This person is a great worker! He’s drunk all the time!’ yet we continue to celebrate people who sacrifice sleep for work.
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Faceted Planets - These are the Voyages -

It’s no secret that I am fascinated by astronomy and planetary science. I think of each of our planets as unique opportunities for exploration but also for art. You’ll likely find 2-3 poster series in my shop dedicated to our solar family. 

I was interested in developing a series of inforgraphics featuring our exploits across the solar system – specifically missions to the outer worlds – and marrying the data with a series of faceted/low-poly illustrations of each planet. I found over time that the over-simplification of these features created a series of gorgeous, jewel-like icons; each with their own unique coloration, personality, and depth.

Each infographic poster features a history of scientific exploration. Probes, satellites, space stations, etc. highlight the achievements of man in astronomic discovery. Each poster in this series also features the distance from the sun, rotational period in days/years and the number of confirmed, natural satellites.

Find more of our geek-inspired designs @ The Geekerie - Etsy  |  Facebook  |  Twitter

If you’ve spent hours and hours looking at the original edition of illustrator David Macaulay’s The Way Things Work (like my kids have, and as I did when I was a kid), we have good news: A brand new edition was released in October 2016.

In The Way Things Work Now, touch screens, quadcopters, wi-fi, speech recognition, and 3D printers join zippers, windmills, rockets, parking meters, and more. Not only for aspiring young engineers or scientists… a classic primer for any curious kid (or adult).

Buy this book

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Measles has surged back in Europe, while whooping cough is has become a problem here in the U.S.

Childhood immunization rates plummeted in parts of Europe and the U.K. after a 1998 study falsely claimed that the vaccine for measles, mumps and rubella was linked to autism.

That study has since been found to be fraudulent. But fears about vaccine safety have stuck around in Europe and here in the U.S.

NPR maps the resurgence of preventable diseases due to public ignorance and lamentable misinformation about vaccines.

Pair with Bill Gates on vaccines, animated.

JEAN-atics

Jeans play an integral part of our life. Denim is a way of life indeed!

In this post, we shall explore some interesting attributes of the jean that you might not have known.


That tiny pocket

That tiny little pocket was intended to be a placeholder for pocket watches back in the days when watches were the only means to keep track of time. 

It’s appropriately called the ‘watch pocket’.

                                                    Source

It was never removed even when wrist watches and phones made the pocket watch redundant. It’s always fascinating to see what how people make use of this redundancy.


Those tiny buttons

Those tiny buttons are called rivets and you can find them being used across all domains of engineering.

They’re there to prevent jeans from wearing out and ripping at the seam. Workers were complaining about how quickly their pants wore out. 

And ergo to solve this, Levi introduced these rivets that held the fabric together and prevents ripping of the pants.


What is a rivet ?

Rivet, quite bluntly put is a permanent mechanical fastener. Here’s how it works:

                                                     Source

As the top of pockets is a place where a lot of fabric is being stitched together, the pockets need to be attached with lots more strength to increase the overall tear strength, hence, the use of mechanical fasteners called Rivets.


Zipper

While we are on the topic of things that open and close, here’s a gif on how zippers work.

                                                    Source                                                                    

Have a great day!

More cool stuff:

How are rivets attached to jeans

How often should you wash jeans?

How it’s made : Jeans

Tinker Crate delivers award-winning STEM subscription boxes with experiments that kids can build, play with, and learn from. Every month, kids get a super cool project — like a real electric motor or a trebuchet that sends ping pong balls flying up to 10 feet — along with a step-by-step blueprint, and a Tinker Zine full of explanations and ideas for new experiments. It’s like science camp in a box!

You can also buy single crates. Some we love include Fiberoptic Stars, Drip Irrigation, Trebuchet (above), Paper Circuits, and Automaton.

Also awesome: Cricket Crate for babies, Koala Crate for 3-4s, Kiwi Crate for 5-8, and Doodle Crate for craft projectss.

Subscribe for these kits

Astronaut candidate Eileen Collins during parachute ejection briefing 

(29-31 July 1990) – Eileen M. Collins, a USAF major and a candidate for a pilot astronaut’s position with NASA, listens to a briefing on parachute ejection. The classroom session was part of a three-day survival training course hosted by Vance Air Force Base in Oklahoma. Photo credit: NASA

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Mad Scientists United

The fields of Science and Technology have exploded as of late, with new discoveries inspiring a whole generation of mad scientists to cross the boundaries between reality and fiction. Inspired by these intrepid geniuses and their explorations of fringe science, these vintage inspired, minimalist posters take these outlandish theories and tethers them to our reality.

Find more of our geek-inspired designs @TheGeekerie - Etsy  |  Facebook  |  Twitter