Scree – Page 308 – Craig Constantine

Fuel cells →

Published October 7, 2013 · All posts on Oct 7

Two leading fuel cell manufacturers, Massachusetts-based Nuvera and Albany, N.Y.-based Plug Power Inc., will each receive $650,000 from DOE’s Office of Energy Efficiency and Renewable Energy. The companies will provide matching funds and labor of their own. A PNNL team led by Brooks will oversee and evaluate the two-year program.
Industry officials estimate that approximately 300,000 refrigerated trucks with auxiliary power units are on the road in the United States. By replacing the small diesel engines with the more efficient fuel cell, users will see fuel savings of approximately 10 gallons a day per unit, in addition to reduced emission of pollutants and significantly quieter operation.
~ Phys.org from, Refrigerated trucks to keep their cool thanks to fuel cell technology

Elsewhere, this is 4upyne11. — slipbox

Extracting periodicities from message arrival times →

Published October 4, 2013 · All posts on Oct 4

algorithm – Extracting periodicities from message arrival timestamps – Stack Overflow

StackOverflow question of mine, any math or programming peeps have any ideas?

Getting to space is easy. Staying in space is hard. →

Published September 29, 2013 · All posts on Sep 29

The reason it’s hard to get to orbit isn’t that space is high up. It’s hard to get to orbit because you have to go so fast.
…
The speed you need to stay in orbit is about 8 kilometers per second. Only a fraction of a rocket’s energy is used to lift up out of the atmosphere; the vast majority of it is used to gain orbital (sideways) speed.
~ Randall Munroe from, Orbital Speed

Elsewhere, this is 4uxoaa4. — slipbox

Once you start down the path to the dark side →

Published September 27, 2013 · All posts on Sep 27 · Parkour

Parkour is about taking the road less travelled by, and choosing the harder path every time. It’s about understanding that excellence does not arise from simply doing what is convenient or what pays well or what advances your personal career. The Olympic Games are sponsored by Coca-Cola and McDonalds. That’s not right.
Have principles. Stick to them. Because if you don’t stand for something you’ll fall for anything.
~ Dan Edwards from, The Business of Parkour: A Question of Principle (or How to Resist the Red-Bullion) – Dan Edwardes

Elsewhere, this is 4udaau1. — slipbox

Astronomy Stack Exchange site →

Published September 24, 2013 · All posts on Sep 24

http://astronomy.stackexchange.com/

The Astronomy Stack Exchange site has just graduated into private beta! You need an invitation to participate in private beta. If anyone would like an invitation, please contact me, I’ll need your email address to send you an invite.

Mastering the skill of observation →

Published September 21, 2013 · All posts on Sep 21

“In the field of observation,” legendary disease prevention pioneer Louis Pasteur famously proclaimed in 1854, “chance favors only the prepared mind.” “Knowledge comes form noticing resemblances and recurrences in the events that happen around us,” neuroscience godfather Wilfred Trotter asserted. That keen observation is what transmutes information into knowledge is indisputable — look no further than Sherlock Holmes and his exquisite mindfulness for a proof — but how, exactly, does one cultivate that critical faculty?
~ Maria Papova from, The Art of Observation and Why Genius Lies in the Selection of What Is Worth Observing – The Marginalian

Elsewhere, this is 4ubaie6. — slipbox

The north pole has not melted →

Published September 19, 2013 · All posts on Sep 19

Even journalists get tripped up into thinking this is photo from the North Pole. At the real North Pole, history shows this to be a relatively common occurrence.
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You see while they were busy lecturing the faithful, they forgot the one teensy-eeensy little detail about the source of this photo. It is from camera on top of the sea ice, and sea ice isn’t static, it moves. In fact according to the University of Washington who manages and tracks these floating cameras and weather stations, while they started out near the North Pole, they aren’t anywhere close to it now.
~ Anthony Watts from, Al Gore’s “Reality Minions” think the North Pole is melting – except that’s NOT a photo of the North Pole – Watts Up With That?

Elsewhere, this is 4uwaao1. — slipbox

Al Gore’s “Reality Minions” think the North Pole is melting – except that’s NOT a photo of the North Pole.

Costa Concordia parbuckling live! →

Published September 16, 2013 · All posts on Sep 16

They are attempting to right the Costa Concordia today. She’s TWICE as big as the titanic… no one has ever tried to right a ship this large. (…oh, and “parbuckling“.)

Fight test →

Published September 15, 2013 · All posts on Sep 15

There are things you can’t avoid /
You have to face them /
when you’re not prepared to face them
~ The Flaming Lips from, Yoshimi Battles the Pink Robots – Wikipedia

Stance and posture →

Published September 13, 2013 · All posts on Sep 13

In the most basic interpretation of an entry-level kata, the aggressor is allowed to grab a wrist, sleeve or lapel, and then you go through the prearranged movements step by step. In more advanced work, if one observes a higher-ranking exponent of the style, just before the aggressor makes contact, the defender moves to a different position in reaction to the upcoming grab. By the time the grab is made, the defender is already well into his movement to take advantage of the attacker’s momentum seamlessly, and then taking charge of the distance and “flow” of the encounter.
~ Wayne Muromoto from, 67. More on Kamae – The Classic Budoka

Elsewhere, this is 4uwomo1. — slipbox