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Bill Fulkerson

How aerosols are formed - 0 views

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    Aerosols are suspensions of fine solid particles or liquid droplets in a gas. Clouds, for example, are aerosols because they consist of water droplets dispersed in the air. Such droplets are produced in a two-step process: first, a condensation nucleus forms, and then volatile molecules condense onto this nucleus, producing a droplet. Nuclei frequently consist of molecules different to those that condense onto them. In the case of clouds, the nuclei often contain sulphuric acids and organic substances. Water vapor from the atmosphere subsequently condenses onto these nuclei.
Bill Fulkerson

Stretch and flow: Research sheds light on unusual properties of well-known materials - 0 views

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    Toothpaste, face creams, hair gel, mayonnaise and ketchup are household items that most people don't think twice about, but in terms of their flow behavior, they have unusual properties. They're all elasto-visco-plastic (EVP) materials, which behave like solids when at rest, but can yield to flow like liquids when placed under enough stress. Despite their ubiquity, the ability to model and predict their behavior relies on a theory that has only been shown to work under certain conditions.
Bill Fulkerson

Coronavirus antigen tests: quick and cheap, but too often wrong? | Science | AAAS - 0 views

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    Antigen tests don't amplify their protein signal, so they are inherently less sensitive. To make matters worse, that signal gets diluted when samples are mixed with the liquid needed to enable the material to flow across test strips. As a result, most antigen tests have a sensitivity of anywhere between 50% and 90%-in other words, one in two infected people might incorrectly be told they don't have the virus. Last month, Spanish health authorities returned thousands of SARS-CoV-2 antigen tests to the Chinese firm Shengzhen Bioeasy Biotechnology after finding the tests correctly identified infected people only 30% of the time, according to a report by the Spanish newspaper El Pais.
Bill Fulkerson

Phenomenal World | Another Lost Decade? - 0 views

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    Contrary to common beliefs on fiscal fundamentals, the current debt crisis in the global periphery demonstrates that the solvency of sovereign states is determined by their monetary power. Crucially, liquidity has a cyclical character in the periphery of global capitalism and a countercyclical character in the core.
Bill Fulkerson

Brrrr! 'Supercooled' waters make nearby Antarctic seas seem balmy : Research Highlights - 0 views

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    The Southern Ocean is riddled with supercooled stretches of liquid water that are colder than the freezing point.
Bill Fulkerson

A Nonsensical Jumble of Misused Words Requires Discussion | RealClearMarkets - 0 views

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    In the few studies and examinations which exist, in using Treasury securities it's been figured these collateral re-pledging and rehypothecation chains average multiples of six to eight; meaning, that a single UST security might be reused for book and customer business six to eight times. Between 85% and 90% of all Treasuries taken on dealer books are re-used in some fashion. No wonder these banks might become skittish, and why Treasury (and similar collateral) prices remain the way they are. The value in UST's isn't as an investment; it's the liquidity premium demanded by a fragile global monetary system. These are balance sheet tools whose worth is derived from what central bankers and bank regulators (same thing) are in no rush to comprehend.
Steve Bosserman

Chatting robots and music: Fun gadgets on display - The Columbus Dispatch, 2017-02-28 - 0 views

  • JUST ADD WATERGrowing your own veggies may become possible even for urbanites with tiny studio apartments.Israeli startup Living Box offers a modular, unfoldable, solar-powered little greenhouse that you can use to harvest anything from tomatoes to tea and herbs.“We have a slow release water system for irrigation, with a novel liquid nutrient solution and bacteria to avoid the use of pesticides, as well as an app prototype updating weather conditions and other relevant data right to your smartphone, so you don’t have to monitor it,” explained Nitzan Solan, CEO of the company.The idea was to create a sustainable, affordable and simple mobile farming system that could be operated by anyone around the globe.As of now, Living Box is testing in 50 sites around Israel, the U.S. and Nigeria, and aims to try locations in Spain and Fiji. It is expected to carry a market price of $300.
Steve Bosserman

The innovation turning desert sand into farmland - 0 views

  • Faisal Mohammed Al Shimmari farms in some of the most extreme conditions in the world, at Al Ain, an oasis in the United Arab Emirates desert, where temperatures can reach 50C. "It's expensive as we have to buy water regularly to irrigate these plants," he says
  • Norwegian scientist Kristian Morten Olesen has patented a process to mix nano-particles of clay with water and bind them to sand particles to condition desert soil - he has been working on Liquid Nanoclay (LNC) since 2005."The treatment gives sand particles a clay coating which completely changes their physical properties and allows them to bind with water," he says.
  • "I am amazed to see the success of LNC," says Faisal. "It just saved consumption of water by more than 50%, it means now I can double the green cover with the same water."
Bill Fulkerson

libor - 0 views

shared by Bill Fulkerson on 24 Sep 19 - No Cached
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