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Bill Fulkerson

Anatomy of an AI System - 1 views

shared by Bill Fulkerson on 14 Sep 18 - No Cached
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    "With each interaction, Alexa is training to hear better, to interpret more precisely, to trigger actions that map to the user's commands more accurately, and to build a more complete model of their preferences, habits and desires. What is required to make this possible? Put simply: each small moment of convenience - be it answering a question, turning on a light, or playing a song - requires a vast planetary network, fueled by the extraction of non-renewable materials, labor, and data. The scale of resources required is many magnitudes greater than the energy and labor it would take a human to operate a household appliance or flick a switch. A full accounting for these costs is almost impossible, but it is increasingly important that we grasp the scale and scope if we are to understand and govern the technical infrastructures that thread through our lives. III The Salar, the world's largest flat surface, is located in southwest Bolivia at an altitude of 3,656 meters above sea level. It is a high plateau, covered by a few meters of salt crust which are exceptionally rich in lithium, containing 50% to 70% of the world's lithium reserves. 4 The Salar, alongside the neighboring Atacama regions in Chile and Argentina, are major sites for lithium extraction. This soft, silvery metal is currently used to power mobile connected devices, as a crucial material used for the production of lithium-Ion batteries. It is known as 'grey gold.' Smartphone batteries, for example, usually have less than eight grams of this material. 5 Each Tesla car needs approximately seven kilograms of lithium for its battery pack. 6 All these batteries have a limited lifespan, and once consumed they are thrown away as waste. Amazon reminds users that they cannot open up and repair their Echo, because this will void the warranty. The Amazon Echo is wall-powered, and also has a mobile battery base. This also has a limited lifespan and then must be thrown away as waste. According to the Ay
Bill Fulkerson

Newly modeled: Minimum energy requirements for microbial communities to live - 0 views

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    A microbial community is a complex, dynamic system composed of hundreds of species and their interactions, they are found in oceans, soil, animal guts and plant roots. Each system feeds the Earth's ecosystem and their own growth, as they each have their own metabolism that underpin biogeochemical cycles. The same community-level metabolic rates are exploited in biotechnology for water treatment and bioenergy production from organic waste, thus the ability to capture microbial growth rates and metabolic activities within the communities is key for modeling of planetary ecosystem dynamics, animal and plant health and biotechnological waste valorzation.
Bill Fulkerson

From trash to treasure: Silicon waste finds new use in Li-ion batteries - 0 views

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    Now, a team of researchers at Osaka University has used flake-shaped Si nanopowder wrapped by ultrathin graphite sheets (GSs) to fabricate LIB electrodes with high areal capacity and current density. Generally treated as industrial waste, Si swarf is generated at a rate of 100,000 tons per year globally from Si ingots that are produced from silica through processes at 1000~1800°C. Water-based coolants and fixed abrasive grain wire saws are paving the way to the use of Si swarf as an anode active material with a high capacity at a reduced cost.
Steve Bosserman

How To Stop Wasting Time On The Internet - Barking Up The Wrong Tree - 0 views

  • Our devices provide plenty of benefits. But we’re often really bad about balancing that with the costs in an optimal way. Social media can make us happy, but face-to-face time makes us happier and one usually comes at the expense of the other. But social media is more convenient. So we don’t make the best choice; we make the easy choice.
  • Digital minimalists see new technologies as tools to be used to support things they deeply value – not as sources of value themselves. They don’t accept the idea that offering some small benefit is justification for allowing an attention-gobbling service into their lives, and are instead interested in applying new technology in highly selective and intentional ways that yield big wins. Just as important: they’re comfortable missing out on everything else.
Steve Bosserman

Poverty May Be Bad for the Brain - Pacific Standard - 0 views

  • But new research finds one factor that influences the rate at which our brains age is largely outside our control: our socioeconomic status.
  • "Engaging and resourceful environments associated with higher socioeconomic status may provide a buffer or delay against aging," the researchers write. "Inadequate health conditions associated with lower socioeconomic status environments (such as exposure to toxins and poorer nutrition), together with continual stress, may accelerate the aging process."
  • Using neuroimaging, the researchers evaluated participants' brains in two ways, measuring "functional network organization and cortical gray matter thickness." They found both measures demonstrated greater aging in people of lower socioeconomic status, even after accounting for demographic differences and personal health.
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  • A 2014 study found African-Americans age more rapidly than whites, presumably due to the stress of dealing with racism.We've long been told that a mind is a terrible thing to waste. Perhaps we need to remember it's also a terrible thing for a mind to waste away.
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