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Christopher Vallo
Lives in San Francisco
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Christopher Vallo

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NASA would be proud of you, Cadillac

A brake light switch shouldn't be this complicated.

Ever.
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Joe Gross's profile photoHolland Rhodes's profile photoStephen Kawamoto (Radha Santadharma)'s profile photo
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There's more than on and off in that switch.
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Christopher Vallo

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SF thinks $114K/yr is middle income

For one specific gender, sexuality, age and ethnicity.
Unless you are in that group, you're making 1/2 - 1/5th of that amount.

I'm looking forward to #berniesanders campaign in the coming year.

At some point, Bernie will get access to #bigdata and be compelled to be honest about the reality of this country.

Should interesting to see how many of his cheer squad still supports him when they get shifted one or more columns to the right.
Not sure how AHBP will impact Divisadero and Fillmore, in light of their recent rezoning? Here's where it applies, and what it would change.
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Emily Urie (wolfraisin)'s profile photoDonald Weller's profile photoChristopher Vallo's profile photo
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I do like the idea +Donald Weller​ if it includes extra houses, cars, businesses and pretty much anything from Amazon.com

Problem may be fixing itself (see: LinkedIn stock) at least here in SF.
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Nope, not real because Elon didn't say so

Obviously, this is a just a silly ruse to distract the public from the real profits to be made by leading a flock of sheeple.

ht +Uche Eke

#bullshit #dumb #scarcasm #wrongdoitagain
 
The term “solar energy” usually conjures up visions of blue glass rectangles, absorbing sunlight and turning it into electricity. But there’s another way to take advantage of the sun’s power—use it to create hydrogen fuel.
A group of researchers at the University of California, Berkeley, has found a way to make the devices that use sunlight to split water into hydrogen and oxygen much more efficient. They mix two different materials one that strongly absorbs sunlight and one that efficiently conducts electricity to build a device with the strengths of each. They describe their results in the current issue of ACS Central Science.
The device is a photoelectrochemical cell, which captures sunlight to generate electric current, and then uses the current to split water. The resulting hydrogen can be stored, and later used to power a car’s fuel cell, for instance.

Back in 2013, Peidong Yang a chemist at the University of California Berkeley, demonstrated just such a PEC cell, which he and his colleagues built with semiconductor nanowires. The problem was the cell didn’t generate very much current, and therefore the splitting happened very slowly. It turned out the bottleneck lay in the photoanode, which was made of titanium dioxide nanowire. TiO2 has a large bandgap, which leads it to absorb ultraviolet light very well. It’s not so good with visible light.
Other materials—bismuth vanadate is one—are better at absorbing sunlight but don’t conduct electricity nearly as well as titanium dioxide. But Yang thought he could achieve the best of both worlds by making the two work together. He built nanowires out of tantalum and TiO2, then coated them with particles of bismuth vanadate. The BiVO4 absorbs the photons of sunlight, and passes electrons to the TiO2.
It’s still not as good as a photocathode, but it’s progress Yang says.

The silicon nanowire photocathode has currents greater than 25 milliamps per square centimeter, but the photoanode only reaches 2.1 mA/cm2. The smallest current determines the efficiency of the cell.
Yang is hopeful he can find a combination that will work even better. “We are looking at a couple other material compositions,” he says. Many research groups are looking into this very challenging area.
Indeed, plenty of researchers would like to make a marriage between solar energy and hydrogen. Both Toyota and Hyundai have introduced SUVs that operate on hydrogen-based fuel cells, but owners still face the challenge of gassing up; hydrogen is flammable and can be difficult to transport, and there just aren’t that many fueling stations. The solution may be to rely on different fuels that are easier to handle and convert them to hydrogen right at the fuel cell, says Nico Hotz a materials scientist at Duke University. Instead of using, transporting, and storing pure hydrogen, we want to use any kind of fuel that is easy to use, transport, and store Hotz told a session of the Material Research Society’s fall meeting in Boston in December.

The idea, he explained, is to take a fuel such as methanol, ethanol, or methane, mix it with water, and heat it up to between 300°C and 400°C to create a reaction that produces hydrogen, which the fuel cell can then burn. Traditionally, this steam reforming process has burned some of the fuel in order to produce the necessary heat; running the process with natural gas typically burns about half of the gas. “We say that’s a waste of fuel,” Hotz said. “We want to convert all our fuel to hydrogen.”
He and his colleagues are developing catalysts that can help the process along. They created nanoparticles made of copper oxide, zinc oxide, and aluminum nitrate. With enough copper oxide in the mix, and with reactor temperatures between 220°C and 295°C, and methanol-water mixes flowing into the reactor at rates between 2 and 50 microliters per minute, they achieved complete conversion of the fuel...
Using the sun to change easy to store chemicals into usable hydrogen is getting more efficient
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Paul Tomasek's profile photoLars Clausen's profile photoChristopher Vallo's profile photo
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Oh, I can't fault his innovations, creedo or even his skill +Lars Clausen

His ego based bias and transparency about the profits/motivation is my primary concern.

Hydrogen progress is in direct conflict to his current investments. Bad mouthing it is pointless and quite childish.

If he was as altruistic as he claims, he wouldn't restort to name calling when progress isn't his "idea"
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When you assimilate yourself into a culture

It's appropriation.

When you, as yourself and your culture, participate in another's culture it is appreciation.

If Beyonce was Beyonce with a cast of Indian dancers, that would be appreciation.

Putting Beyonce in Indian roles and covering the Coldplay "band" in Holi powder is appropriation without purpose.

The song is basic pop (without even a shred of Indian elements) so shooting in India must be cheaper than studio time in Hollywood.

We've watched as pop fed #blaxplotation and #nipponphile took over everything we saw now, we have #desilust

Is anyone actually surprised?
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+Christopher Vallo Not a good person for that, since I don't have the profit lust that seems to drive nearly everyone today.  It is something quite alien to me.  
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Just another lost child to find one day

In the future, we'll cheer when our prodigal probes and scientific exploring "children" are brought home to tearful crowds.

Thank you, brave #philae and may you dream of electric sheep until we meet again.
The success of the campaign to humanize a scientific instrument has left the European Space Agency (ESA) with a dilemma: how to communicate Philae's demise?
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Let's see how this works out

Yesterday was Day #1: Drink

Made my coffee with a little bit of heavy cream and coconut oil. Decadent and healthy, right?

As you can see there wasn't much left, yes it was quite delicious.

#photoaday1 #drink #coffee
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Show your love of #astronomy ...

By helping children with amazing night skies get closer to and understand better the visible universe!

 
Join our new crowdfunding campaign to help raise $270 for telescopes and training for Guatemala schools.  Details here: bit.ly/1Po7Avx
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LinkedIn revealed to be digital ponzi scheme

Two high schools students from Sugarland, TX crunched the numbers with shocking results.

"The average user had a better chance of getting laid with AshleyMadsion than finding a job via LinkedIn"

"Cheering for your favorite wrestler in WWE is more impactful to the outcome the match than trying anything LinkedIn suggests to 'improve your profile' "

Federal investigations found an empty office building with a large LinkedIn sign out front.

"Seems one was ever employed by LinkedIn the company or ever gotten a job via LinkedIn. All the smiling employee pictures seemed to have been taking from European dating websites."

Geraldo Rivera is expected to hold a press conference to announce his new special "The Search for LinkedIn"

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Damn good work by damn good people

A good example of how easy it is to do something to help fix a problem as opposed to just posting about the problem on social media.

ht +Miss Melony
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Who ousted the old gay bar in #sanfrancisco?

These folks.
Guess which 1% they are referring to?
Whatever you do don't get angry about it.

You could lose your cushy job if they find out you oppose their whim to ride a stationary bike.

San Francisco' tech bros told: quit changing the gayborhood
http://www.theguardian.com/world/2016/feb/02/san-francisco-gay-bars-shut-down-lgbt-tenderloin-castro-district
Would you pay $70 to ride a stationary bike for 45 minutes while an instructor yells exhortations at you? At SoulCycle, thousands do so every day.
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Read 'em and weep

This is from 3 years ago and the writers are still just following the formula.

And who said the populace is hard to control?

Seems controlling what we watch is old hat.
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Christopher's Collections
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Степанов Михаил's profile photo
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Elin R. Evensen's profile photo
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Basic Information
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*sigh* let me get this straight...
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
San Francisco
Previously
New York
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Creative, welcoming and utterly unique! From the spectacular original artwork to the life changing classes, 3 Fish Studio is an Outer Sunset gem. A true community based business that offers affordable, completely open classes on how to bring out your inner artist. Decorate your home with their fantastic work or learn how to make your own.
Public - 2 years ago
reviewed 2 years ago
Attended a friend's birthday party in the back room of Cafe Europa and enjoyed one delicious appetizer after another complimented by a well chosen assortment of wines and beers. Staff were friendly, attentive making excellent suggestions to those unfamiliar with the menu. Fourteen entrees arrived quickly and well prepared. Each one I sampled was as tasty as the last and a wonderful celebration was made all the better with a great food, great service and cozy atmosphere.
• • •
Public - 2 years ago
reviewed 2 years ago
Find what you want without knowing what you're looking for. This is the new benchmark for Comic Book stores. Neat, tidy, easy to browse and expansive in a way a store ten times it's size couldn't hope to be. They ordered a few hard to find issues, cheerfully, made new customers feel welcome and were proud of their hard work. Online sellers should be worried: this store gives the customer value and selection with and experience that is impossible to duplicate over the internet.
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Public - 2 years ago
reviewed 2 years ago
Comfortable yet too loud to have a conversation. Well staffed with decent list of beers and easy to locate make it the perfect place to your out-of-town friends.
Atmosphere: GoodDecor: GoodService: Very Good
Public - 2 years ago
reviewed 2 years ago
8 reviews
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Everything you'd need for projects that extended far beyond home repair with friendly, staff that is cheerfully happy to help.
Public - 2 years ago
reviewed 2 years ago
Delicious food matched with an exquisite selection of tequila. Family owned and it shows. Comfortable, attentive and authentic. When they make their own tequila, you be sure the food is well matched and perpared with care.
Public - 2 years ago
reviewed 2 years ago
For the person who looks for not just something they need or something to buy, this store is nirvana. From the fair trade and economically empowering items to the local artists like Nadhi Chanani, the funky yet adorable baby onesies and the engaging staff; this store is your one-stop shop for being a consumer for a cause.
Quality: ExcellentAppeal: ExcellentService: Excellent
Public - 2 years ago
reviewed 2 years ago