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ArisKatsaris comments on May 2017 Media Thread - Less Wrong Discussion

1 Post author: ArisKatsaris 01 May 2017 10:26AM

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Comment author: ArisKatsaris 01 May 2017 10:27:38AM 0 points [-]

Short Online Texts Thread

Comment author: morganism 29 May 2017 11:20:14PM 0 points [-]
Comment author: morganism 22 May 2017 11:47:39PM 0 points [-]

Producing fertilizer from air, using a plasma from a jacobs ladder.


"In his experiments the GA reactor in particular appeared to be the most suited to producing nitrogen oxides. In this reactor, under atmospheric pressure, a plasma-front (a kind of mini lightning bolt) glides between two diverging metal surfaces, starting with a small opening (2 mm) to a width of 5 centimeters. This expansion causes the plasma to cool to room temperature. During the trajectory of the 'lightning', the nitrogen (N2) and oxygen (O2) molecules react in the immediate vicinity of the lightning front to nitrogen oxides (NO and NO2)."

"Patil optimized this reactor and at a volume of 6 liters per minute managed to achieve an energy consumption level of 2.8 MJ/mole, quite an improvement on the commercially developed methods that use approximately 0.5 MJ/mole. With the theoretical minimum of Patil's reactor, however, being that much lower (0.1 MJ/mole), in the long term this plasma technique could be an energy-efficient alternative to the current energy-devouring ammonia and nitrate production. An added benefit is that Patil's method requires no extra raw materials and production can be generated on a small scale using renewable energy, making his technique ideally suited for application in remote areas that have no access to power grids, such as parts of Africa, for instance."

Comment author: morganism 21 May 2017 07:49:21PM 0 points [-]

A $7,500 College Degree in 12 Months?


"you can earn college credits via testing! Of course, colleges prefer that you never learn of this option because it’s not in their best interest to have students graduating early. The most common credit by exam options are: CLEP and DSST. As for credit hours, CLEP exams offer from 3 to 12 hours of credit while DSST exams are worth 3 credit hours each. Both exams cost $80 per test and can be taken at testing centers around the world. There is usually a $20 fee to take the exam, so budget $100 per exam. This is a key point: CLEP and DSST exams are vital to any degree hack."

Comment author: morganism 20 May 2017 10:41:41PM 0 points [-]

"“The problem is that many dietitians around the world are telling people to have wholegrain bread when most wholegrain bread is roughly comparable to eating a bag of glucose.”


Discriminating between carbohydrate-rich foods: A model based on nutrient density and glycaemic index


Comment author: morganism 19 May 2017 10:12:03PM 0 points [-]

pushing for womens egg storage may also decrease costs for cryopreservation

For All the Single Ladies Not Ready to Have Babies, Here’s an Option


"egg freezing can cost up to $18,000, and storing the eggs can amount to an additional $1,000 per year. However, some fertility companies offer financing packages with low monthly payments."

Comment author: morganism 18 May 2017 07:45:49PM 0 points [-]
Comment author: morganism 16 May 2017 09:23:53PM 0 points [-]

Student Loan Subsidies Cause Almost All of the Increase in Tuition




"With all factors present, net tuition increases from $6,100 to $12,559. As column 4 demonstrates, the demand shocks — which consist mostly of changes in financial aid — account for the lion’s share of the higher tuition."

"Remarkably, so much of the subsidy is translated into higher tuition that enrollment doesn’t increase! What does happen is that students take on more debt, which many of them can’t pay."

Comment author: morganism 14 May 2017 10:05:27PM 0 points [-]

Mars human base may require more robots than possible to 3D print there. "In the following figure, I plot a hypothetical trajectory of a population from exploration/outpost phase to full self-sufficiency assuming limited cargo transfer capability. But every machine and human on Mars represents a future liability for the replacement of that machine and feeding of that human, a liability which has to be fully priced into the future. Scaling more quickly that technology and shipping capacity can support guarantees a point in the near future when those liabilities come due, machinery and local industrial capacity undergoes dramatic collapse, and everyone dies of suffocation."

"We have seen that a labor-cost focused approach, normalized by the requirement of "self sufficiency, ASAP", has illuminated the importance of understanding the relative cost of transportation, human labor, maintenance, and robotic labor."


Comment author: morganism 13 May 2017 09:07:13PM *  0 points [-]
Comment author: morganism 08 May 2017 10:39:45PM 0 points [-]

Quantum entangled states just got more stable, and readable...

Quantum entanglement between a single photon and a trillion rubidium atoms

"The entanglement in the real and momentum space, described in the Optica article, can be used jointly with other well-known degrees of freedom such as polarization, allowing generation of so-called hyper-entanglement."



and using the phase to communicate info of entangled photon

"quantum mechanics was found to allow for communication, even without the actual transmission of physical particles. From the viewpoint of communication, this mystery stems from a (nonintuitive) fundamental concept in quantum mechanics—wave-particle duality. All particles can be described fully by wave functions. To determine whether light appears in a channel, one refers to the amplitude of its wave function. However, in counterfactual communication, information is carried by the phase part of the wave function. Using a single-photon source, we experimentally demonstrate the counterfactual communication and successfully transfer a monochrome bitmap from one location to another by using a nested version of the quantum Zeno effect. "



Comment author: morganism 08 May 2017 08:32:27PM 0 points [-]

Health Disparities in Drug- and Alcohol-Use Disorders: A 12-Year Longitudinal Study of Youths After Detention

"Results. By median age 28 years, 91.3% of males and 78.5% of females had ever had an SUD. At most follow-ups, males had greater odds of alcohol- and marijuana-use disorders. Drug-use disorders were most prevalent among non-Hispanic Whites, followed by Hispanics, then African Americans (e.g., compared with African Americans, non-Hispanic Whites had 32.1 times the odds of cocaine-use disorder "


Comment author: morganism 07 May 2017 07:02:10PM 0 points [-]

Long-dormant bacteria and viruses, trapped in ice and permafrost for centuries, are reviving as Earth's climate warms


"Still, the authors estimate that almost all large American metropolitan areas may lose more than 55 percent of their current jobs because of automation in the next two decades. “We felt it was really stunning, since we are underestimating the probability of automation,”


Blockchain AI "Therefore an AI DAO is a DAO that uses AI technology. Or, it’s AI technology that’s run on a decentralized processing substrate. Here’s what makes AI DAOs special over plain AIs: access to resources; the ability to amass more resources; and the possibility that humans can’t control them once they’re going."