Researchers have developed an electronic tongue. (Don't start.) The device is something like a litmus test for taste that, according to chemists at the University of Illinois at Urbana-Champaign, is incredibly accurate at measuring sweet things. The system consists of a paper dotted with an array of color-changing gels that react to a variety of different sweeteners. The electronic device scans the color of the dots after the paper is exposed to a sample. The combination of the gels' reactions, represented by their color, reveals the "taste." There are already chemical or electronic methods to test for other flavors detected by human tongues: saltiness, sourness, and savoriness. From National Geographic:
Sourness is just another word for acidity, Suslick said, which any high school chemistry student can test for using litmus paper.
"Electronic Tongue" Mimics Human Taste Organ
Savoriness - also called "umami" - and saltiness can already be measured by handheld devices sensitive to protein levels and sodium and potassium ions.
The final dimension of taste that remains to be cracked is bitterness, which is still somewhat of an unknown.
"We lump a whole bunch of things into that one word," said (UIUC professor Kenneth) Suslick, whose study appeared August 1 in the journal Analytical Chemistry. "It just isn't clear yet what the bitterness receptors [in the tongue] are and what they respond to."
More than 800 American energy and Earth science researchers have signed a letter to Donald Trump outlining six steps they’re urging him to take to address human-caused climate change to protect “America’s economy, national security, and public health and safety.” The letter is accompanied by a public change.org petition to “Tell Trump To #ActOnClimate.” Here […]
James Delingpole is an invective-hurling anti-climate science columnist who has candidly admitted that he doesn’t bother to read scientific papers, calling himself a “an interpreter of interpretations.”
Kratom (previously) is a widely used herb that has been very effective in treating opioid withdrawal and other chronic, hard-to-treat conditions — it also became very controversial this year because the DEA decided, without evidence, to class it as a dangerous drug, and then changed its mind (unprecedented!) after a mass-scale petition that included interventions […]
These days, there’s definitely no shortage of touchscreen gloves available, but the key is finding ones that consistently work well. These iGloves Touchscreen Gloves are super reliable, and are on sale for just $11.99.Super comfortable and functional, these gloves will keep your hands warm and still let you use any touchscreen, from phones to tablets. The iGloves’ […]
The Black Friday Mac Bundle 2.0 is one of the Boing Boing Store’s best-selling Mac bundles yet, and it’s about to come to an end. If you don’t get your copy now, here’s what you’ll be missing:This bundle comes packing 9 top-rated Mac apps in one package, at the hugely discounted price of just $23.99. […]
The Boing Boing Store’s Gift Guide is full of ideas for pretty much anyone in your life like hipster ice cub trays, Xbox controllers, Halo Boards, and even diamond necklaces. As always, all products in the Boing Boing Store come at great discounts, too. Shop by price bucket starting at under $20. Under $20:Bloxx Jumbo Ice Trays […]