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Philosophy Jeopardy

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Things Schopenhauer hates:
Hegel
Noise
Life itself
Hegel
Everything else
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steingart
11 days ago
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Princeton, NJ
popular
36 days ago
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tante
36 days ago
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Philosophy Jeopardy
Oldenburg/Germany
jepler
36 days ago
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Even just for the first three frames this one is a winner. But... Do you even get to participate in final jeopardy if your score is negative?
Earth, Sol system, Western spiral arm

micdotcom:Sportscaster Dale Hansen defends student wrestler Mack...

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micdotcom:

Sportscaster Dale Hansen defends student wrestler Mack Beggs and takes a stand against transphobia

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satadru
10 days ago
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I get something in my eye when I read through this.
New York, NY
steingart
11 days ago
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Princeton, NJ
popular
23 days ago
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superiphi
1 day ago
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see, you can be an old white dude, uncomfortable with some things in the world, and still get it
Idle, Bradford, United Kingdom
MaryEllenCG
18 days ago
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Honestly, I think more people think this way that we'd think. They just get shouted down by the loudest, most bigoted voices. (At least I hope that's the case. It may just be wishful thinking.)
Greater Bostonia
digdoug
23 days ago
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Looks like Mr. Dale Hansen is a good guy. I'm glad he's out there.
Louisville, KY
acdha
22 days ago
I'm afraid to imagine what his inbox must be like right now

Streetside Stackable Art On Recycling Day

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I tend to emphasize the downside of our recycling buckets, but check out their stackability. Looks like an artist just joined the recycling crew, as all over town the buckets were left neatly and creatively stacked. We'll see if this becomes the new normal.

Reminds me of when I was horticulturist at the Michigan Union in Ann Arbor, and hired a fellow jazz musician as an assistant. He approached lawn mowing like a sculptor, leaving behind a different pattern each time.
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steingart
13 days ago
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noticed this the other day two. IT was awesome.
Princeton, NJ
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Size-dependent physicochemical and mechanical interactions in battery paste anodes of Si-microwires revealed by Fast-Fourier-Transform Impedance Spectroscopy

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Publication date: 1 May 2017
Source:Journal of Power Sources, Volume 349
Author(s): Sandra Hansen, Enrique Quiroga-González, Jürgen Carstensen, Rainer Adelung, Helmut Föll
Perfectly aligned silicon microwire arrays show exceptionally high cycling stability with record setting (high) areal capacities of 4.25 mAh cm−2. Those wires have a special, modified length and thickness in order to perform this good. Geometry and sizes are the most important parameters of an anode to obtain batteries with high cycling stability without irreversible losses. The wires are prepared with a unique etching fabrication method, which allows to fabricate wires of very precise sizes. In order to investigate how good randomly oriented silicon wires perform in contrast to the perfect order of the array, the wires are embedded in a paste. This study reveals the fundamental correlation between geometry, mechanics and charge transfer kinetics of silicon electrodes. Using a suitable RC equivalent circuit allows to evaluate data from cyclic voltammetry and simultaneous FFT-Impedance Spectroscopy (FFT-IS), yielding in time-resolved resistances, time constants, and their direct correlation to the phase transformations. The change of the resistances during lithiation and delithiation correlates to kinetics and charge transfer mechanisms. This study demonstrates how the mechanical and physiochemical interactions at the silicon/paste interface inside the paste electrodes lead to void formation around silicon and with it to material loss and capacity fading.

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steingart
20 days ago
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Princeton, NJ
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Exciting News: Gothamist Has Been Acquired By DNAinfo

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Exciting News: Gothamist Has Been Acquired By DNAinfo Dear readers, [ more › ]
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steingart
21 days ago
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Princeton, NJ
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MIT Technology Review’s 10 Breakthrough Technologies of 2017

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From the MIT Technology Review, the 10 Breakthrough Technologies of 2017:

Reversing Paralysis
Self-Driving Trucks
Paying with Your Face
Practical Quantum Computers
The 360-Degree Selfie
Hot Solar Cells
Gene Therapy 2.0
The Cell Atlas
Botnets of Things
Reinforcement Learning

The piece on Hot Solar Cells caught my eye:

Solar panels cover a growing number of rooftops, but even decades after they were first developed, the slabs of silicon remain bulky, expensive, and inefficient. Fundamental limitations prevent these conventional photovoltaics from absorbing more than a fraction of the energy in sunlight.

But a team of MIT scientists has built a different sort of solar energy device that uses inventive engineering and advances in materials science to capture far more of the sun’s energy. The trick is to first turn sunlight into heat and then convert it back into light, but now focused within the spectrum that solar cells can use. While various researchers have been working for years on so-called solar thermophotovoltaics, the MIT device is the first one to absorb more energy than its photovoltaic cell alone, demonstrating that the approach could dramatically increase efficiency.

Tags: best of   best of 2017   energy   lists   science
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steingart
22 days ago
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(Cough) Carnot (cough)
Princeton, NJ
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