Saturday, March 26, 2016

Justin Trudeau is pretty sure you won't move to Canada

I thought this was just silly at first, but it had some good messages, and a real conversation with Trudeau.

http://youtu.be/JWI5-vWqcGc

How to Cold Start a Frozen D6 Cat Russian-Style with FIRE

Hilarious! Start a fire under the engine to warm it up when it's -28 degrees.

http://youtu.be/Y3tXAuFxGQk

Sunday, March 20, 2016

Grass-free mutton


People are working on growing meat in the lab because growing an entire animal to make meat is incredibly inefficient compared to stringing proteins together in a lab. Here's an article from Popular Science. (The first half is about making mock meat from vegetable products, which has a long way to go yet before getting a palatable product.)  And the second half is about using an extruder machine to make meat products from protein. 

But this article is closer to making meat from chemicals, using a 3-D printer to manufacture meat layer by layer from the proteins. 

Popular science has also had articles about growing vegetables on giant vertical hydroponic farms in buildings close to cities, with advantages of hermetically-sealed insect-free buildings and low transportation costs to market. 
-------
From my Dad -

I grew up in sheep country - as you travelled through Ulster mountain country you would see hundreds of sheep quietly grazing. Grazing where their forbears had grazed since those mediaeval times when the farmers built those stone walls to contain them. Huge areas amongst the ranges of mountains.  And we were a mutton-eating people: every Sunday we had a special dinner with all the family sitting down after Morning Service, to a delicious roast.
Now those vast ranges were obviously covered with soil, and I never heard of the soil being replenished with fertilizer or manure. So the grass could contain, only, elements provided by the soil.  And the woolly creatures ate,  only, elements provided by the soil.
You recall Shut-In Island  near the cottage growing up. The legend is that local farmers, in days gone by, would ferry to it, the sheep and the lambs born in Spring, and would let them graze and fatten there, until market time in the Fall.  Graze on grass sprung from soil that had never been replenished since geological times.
So, what I'm leading to is this, Why doesn't an enterprising chemist take some soil, put it in a test-tube and produce, say grass.  And then, after thinking about it, by-pass the grass, and make ersatz mutton and feed the world's hungry?



Friday, March 18, 2016

From a Pile of Dirt, Researchers Discover New Antibiotic

Cool, they grow bacteria in a chip stuck in the mud. I think the microdiffusion chip is just a means to isolate an organism. I'm surprised they say that less than 1% of soil bacteria can be grown in the lab.

https://www.technologyreview.com/s/533966/from-a-pile-of-dirt-researchers-discover-new-antibiotic/

Fail Compilation July 2015 - February 2016

These fail videos are usually a waste of video, but this one is particularly good. I like the people tumbling off the see saw like dominoes.

http://youtu.be/ad-Kp4Lu6UI

Wednesday, March 16, 2016

How noisy is your food?

The sounds of eating may reduce how much you eat: New study shows food sound is an important sensory cue -- ScienceDaily
https://www.sciencedaily.com/releases/2016/03/160315131902.htm

There's another experiment with a bottomless bowl of soup that keeps refilling magically from underneath the table, and people eat 50% more soup until they realize what's happening. http://www.ncbi.nlm.nih.gov/m/pubmed/15761167/

Sadly, the lesson is we are so unaware of our satiety and we'll eat ourselves into oblivion without self control. 

Tuesday, March 15, 2016

Saturday, March 12, 2016

Bridge of Spies and the U2-spy plane

I was reading about the U2 spy plane while watching the movie, and was stunned to read what their pilots went through. Under the section "design" on the wiki page, they describe pilots' requirement to denitrogenate their blood breathing 100% O2 for an hour, then take off in a lightweight plane that even jettisons part of its landing gear during takeoff and fly a plane with very stiff, difficult controls that is hard to fly at low altitudes, then maintain their ultra high altitude during the mission within an incredibly narrow range of 10 knots of airspeed between the fuselage falling apart or the aircraft stalling. 

System for building a tunnel arch quickly

Clever system to support an arch during construction with a truck covered with rollers.

arch block excavator tunnel build

Tuesday, March 8, 2016

Icebreaker in action

Video gets more interesting at 4:10

My understanding is that in thick ice-breaking, the icebreaker rises up over the ice edge, then the weight of the ship resting on the ice breaks it. https://en.wikipedia.org/wiki/Icebreaker

Wednesday, March 2, 2016

Rube Goldberg type musical machine

Palliative care patients

Atul Gawande notes how scientific advances have turned the process of aging and dying into medical experiences, managed by a gaggle of health care professionals. Death equates to a failure of medical care, rather than an inevitability of the human journey...
[The patient] filled out the requisite papers - power of attorney and DNR. These turned out to be 'expensive and flimsy amulets' - when dementia took away his intellect and right to self-determination. An age-old faith in institutional medicine and its practitioners was not rewarded with the support the [family] needed.
- Hector Baillie MD


'Being Mortal' by Atul Gawande
'Knocking on Heaven's Door' by Katy Butler

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