Adults: please stop peeing in swimming pools + Physicists 'teleport' logic operation

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Adults: please stop peeing in the swimming pools, CDC Says (chemistry)
https://www.forbes.com/sites/brucelee/20...-cdc-says/

EXCERPT: . . . If you are wondering why the CDC even needed to issue this reminder, take a look at results from the 2019 Healthy Pools survey. [...] The survey results showed a number one problem: 40% of the adults surveyed admitted to peeing in swimming pools. Not as infants. Not as children, but as full grown adults. Yes, apparently, in many cases, if you think you are swimming water that's pee free, urine for a surprise.

Then, there's the number two problem. Nearly a quarter (24%) of the respondents said that they would enter a swimming pool "within one hour of having diarrhea." Yes, within a single hour of having diarrhea. Talk about being dung wrong.

Again, these are the percentages of people who admitted to such behaviors. As you probably know, people aren't always great about admitting things. After all, 30% of Tinder users are already married. So, you can only imagine how many more people are using swimming pools as toilets.

The CDC also gave two reasons why it's bad to pee in swimming pools. Pee, like poop, sweat, dirt, skin cells, and personal care products [...] can chemically react with the chlorine in the pool [...] This reaction not only decreases the amount of chlorine available in the pool but also generates chloramines. [...] Chloramines can irritate your eyes, skin, nose, and breathing passages. It can even trigger asthma attacks. [...] the nitrogen in pee can react with chlorine to form cyanogen chloride, which can then like tear gas. (MORE)



Physicists 'teleport' logic operation between separated ions
https://www.sciencedaily.com/releases/20...141539.htm

INTRO: Physicists at the National Institute of Standards and Technology (NIST) have teleported a computer circuit instruction known as a quantum logic operation between two separated ions (electrically charged atoms), showcasing how quantum computer programs could carry out tasks in future large-scale quantum networks.

Quantum teleportation transfers data from one quantum system (such as an ion) to another (such as a second ion), even if the two are completely isolated from each other, like two books in the basements of separate buildings. In this real-life form of teleportation, only quantum information, not matter, is transported, as opposed to the Star Trek version of "beaming" entire human beings from, say, a spaceship to a planet.

Teleportation of quantum data has been demonstrated previously with ions and a variety of other quantum systems. But the new work is the first to teleport a complete quantum logic operation using ions, a leading candidate for the architecture of future quantum computers. The experiments are described in the May 31 issue of Science. "We verified that our logic operation works on all input states of two quantum bits with 85 to 87% probability -- far from perfect, but it is a start," NIST physicist Dietrich Leibfried said.

A full-scale quantum computer, if one can be built, could solve certain problems that are currently intractable. NIST has contributed to global research efforts to harness quantum behavior for practical technologies, including efforts to build quantum computers. For quantum computers to perform as hoped, they will probably need millions of quantum bits, or "qubits," as well as ways to conduct operations between qubits distributed across large-scale machines and networks. Teleportation of logic operations is one way do that without direct quantum mechanical connections (physical connections for the exchange of classical information will still be needed). (MORE)
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