Imagine if there was a way to know which watermelon is sweeter? When is that avocado going to ripen? How many calories, carbs or protein is in that shake? How your plants are doing? What's in those pills your taking? A new low-cost handheld sensor on the market promises all those answers and more, in real time (https://www.consumerphysics.com/myscio/scio). The technology is based on near infrared spectroscopy. How does it work?
Calorific Rays: We all know that a prism can separate ordinary light into the vibrant colors of the rainbow. Back in 1800, musician and astronomer William Herschel wanted to know the temperature of each color. By placing a thermometer with a blackened bulb along the spectrum, he discovered that the red end was warmer than the blue. To his surprise, a thermometer placed just beyond the visible red part of the spectrum was even warmer. He had discovered infrared rays, although he didn't realize it at the time. This is the same heat that you feel when you hold your hand near a fire.
Bond. Covalent Bond. Shaken and Stirred: Chemicals are arrangements of atoms, held together by bonds. You can think of these bonds as tiny springs in motion. They stretch, wiggle, rotate and twist. When they absorb energy, the natural vibrations of bonds increase. Because of quantum mechanical constraints, these increases occur only to discrete energy levels. Different bond types (C-O, or C-H) and different vibration modes result in a series of absorptions at different wavelengths. By looking at which wavelengths of light were absorbed by a compound, we can deduce what types of chemical bonds are in the sample. Absorbances in the near infrared region of the spectrum can be so complex that they give rise to unique fingerprints of different chemicals.
Citizen Science: Spectrometers built with near infrared technology used to be large, expensive and restricted to universities. That's changing! The handheld spectrometer transmits chemical signatures to a smartphone which checks the pattern against a huge library of compounds in the "cloud" and returns the analysis to you within seconds. When you use it, not only will you be learning more about the chemical world around you but you'll also be helping to build a database of knowledge of the stuff around us. Now that's citizen science!
REF: An introduction to near infrared (NIR) spectroscopy. A.M.C. Davies. https://www.impublications.com/content/introduction-near-infrared-nir-spectroscopy
GIFS: All gifs are from Wikipedia and are in the public domain.
For the first time, then, we know that in private, British and US government agencies are taking seriously longstanding scientific data showing that a business-as-usual trajectory will likely lead to civilisational collapse within a few decades - generating multiple near-term global disruptions along the way.
The question that remains is: what we are going to do about it?
What's interesting here is an attempt to update the Limits to Growth models with current data and fine tuning the parameter set. LtoG was broadly correct but we can improve it.
With a US election cycle coming up that's likely to set US policy for 8 years, and with the Uk election cycle just started, the question is what are they going to do about this? How will it inform policy?
Some times it feels like the politicians approach is to build a defensible bunker for them and their friends. Maintain business as usual for as long as possible but put civil control mechanisms in place to try and contain the resulting chaos.
"We need to look ahead. Europe was founded on debt forgiveness and investment in the future. Not on the idea of endless penance."
In the context of historical political realignments, Bernie will be as much of a game changer as TR and FDR.
I think this meme puts Bernie Sanders’s platform and this entire movement in a perfect historical perspective. Like Teddy Roosevelt and Franklin Delano Roosevelt, Bernie is also a visionary leader who is daring to take on an entrenched system of greed and destruction that has gone too far. For more historical context, watch Ken Burns’ The Roosevelts: http://www.pbs.org/kenburns/the-roosevelts
TR's Square Deal https://en.wikipedia.org/wiki/Square_Deal had "the 3 C's": Conservation of natural resources, Control of corporations, and Consumer protection.
FDR's New Deal https://en.wikipedia.org/wiki/New_Deal had "the 3 R's": Relief, Recovery, and Reform. That is Relief for the unemployed and poor; Recovery of the economy to normal levels; and Reform of the financial system to prevent a repeat depression.
Bernie's Real Deal has The 3 E's: Economy, Equality, and Environment roughly based on his 3 central issues https://berniesanders.com/issues/ Income and Wealth Inequality, Getting Big Money Out of Politics, and Climate Change & Environment.
It is important that we understand how significant this is, and frame it properly before the corporate media and conservative propagandists try to define Bernie in a negative light. And you know those attacks will start to happen the moment they realize he is not just a dark horse candidate, but is actually going to win the Democratic nomination.
HT https://www.reddit.com/user/TimArthurScifiWriter for the image design at http://imgur.com/gallery/qEc5u3M/new
HT https://www.reddit.com/user/SockofBadKarma for the 3 E’s concept.
#Bernie2016 #FeelTheBern #TheRealDeal
Since humanity made its first trip out of Earth's atmosphere, we've been polluting the emptiness surrounding our planet. Orbital debris is a significant concern for all space-faring countries and could seriously impact the future of spaceflight. Because objects in Low-Earth Orbit are moving at a brisk 7km/s (15,000mph) the risk for catastrophic collision, especially with manned spacecraft, is a nontrivial issue.
This simulation illustrates some of the debris orbiting the planet (not to scale) that our spacecraft must navigate through when exiting the atmosphere. NASA and other government agencies track approximately 19,000 pieces of debris larger than 5cm with an estimate 300,000 pieces larger than 1cm existing below 2,000km. Numerous debris-removal missions are currently being planned to clean up low Earth orbits.
#ScienceGIF #Science #GIF #Space #NASA #Earth #Orbit #SpaceJunk #Debris #Hazard #Simulation #Satellite
- NPR Social Tools
- metawave mediaSimulation Innovation Strategist, present
Progress Made In Assembly-Free Space Structure Field
Silicon Valley startup is investigating using additive manufacturing techniques to enable fabrication of large structures in space that woul
Sixth mass extinction is here, researcher declares
There is no longer any doubt: We are entering a mass extinction that threatens humanity's existence.
HTML/CSS rendering in WebGL for highest performance possible on Web plat...
HTML/CSS rendering in WebGL for highest performance possible on Web platform. In recent time Web development community had a big discussion
The Guide to Minimum Viable Products. Free E-book By UXPin
The art and science of building great products with minimum resources as practiced by companies like Twitter, Dropbox, Airbnb, and Buffer am
Live coverage: All-new Indian rocket set for maiden flight | Spaceflight...
Live coverage of the countdown and launch of India's first GSLV Mk. 3 launch vehicle on a suborbital test flight carrying a prototype capsul
Zuckerberg on VR, anonymity and Facebook's future (Wired UK)
Skeptics may wonder if Facebook can keep 1.2 billion users. But Zuckerberg doesn’t concede that’s even an issue
Benchmarking Unity performance in WebGL – Unity Blog
When we port Unity to new platforms, it is always an important question to find out how well it perf...
Sam Stephenson’s Bull City Summer - The New Yorker
Working with a dozen local artists, the North Carolina writer Sam Stephenson documented what turned out to be a championship season for the
A free and open world depends on a free and open web. | Google
A free and open world depends on a free and open Internet. Governments alone, working behind closed doors, should not direct its future. The
The Overview Effect: Environmental Awareness and the Changing Blue Marble
In the follow-up to last year's Overview Effect event, this panel explores the implications of seeing the Earth's climate change over forty
Start Something, the CED Blog: No Half Measures: Why I Quit My Job for a...
August 10th, 2012 was my last day at Duke Medicine. I was in a job that anyone my age, or period, should be very grateful to have – autonomy
Space Investing: Costs & Benefits of Public Sector Contracts | Space...
April 2013. Space investing: For a fledgling NewSpace startup bootstrapping its way to success, a government contract can provide much neede
Who Was H.M.? Inside The Mind Of The Amnesiac Who Revolutionized Neurosc...
My friend’s father was a neurosurgeon. As a child, I had no idea what a neurosurgeon did. Years later, when I was a graduate student in the
New Government Documents Show the Sean Parker Wedding Is the Perfect Par...
Nothing says, "I love the Earth!" quite like bringing bulldozers into an old-growth forest to create a fake ruined castle.