Tuesday, October 26, 2010

We Showed 'Troll Physics' Comics to a Physics Professor. Here's His Reaction.

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Troll PsychicsIs it possible to "troll" the very laws of matter and motion that govern the universe for your own kinetic benefit? For example, can one survive a falling elevator by jumping up in the air at the last minute? Also, f*cking electromagnetism - how does it work?

If you've pondered any of those questions before, the blog Troll Physics offers incredibly simple but impossible "hacks" for manipulating the laws of nature to yield infinite energy, money and/or sexual partners. Since this site is pretty much a physics teacher's worst nightmare, I cornered one to get his reaction. David Morgan, a natural science professor with a PhD in physics, was kind enough to bring some logic and rational discourse to this hilariously asinine pile of hot meme trash. Read on for a play-by-play scientific smackdown.
troll physics
DM: "Up" is not "North"...the only reasonable meaning for the word "up" is "in the opposite direction of the Earth's gravitational pull at the surface." So saying "holding the Earth up" doesn't even make any sense. I'm pretty sure I just got a little stupider while explaining that.


troll physics
DM: Jumping off the ground - or even a chair on the ground - is nothing like jumping off a chair while you and the chair are in freefall. Because the chair isn't connected to anything, you'll be pushing the chair DOWN as much as pushing yourself up (via Newton's third law). And since you have much more mass than the chair, the force you and the chair exert on one another will speed up the chair's descent much more than it slows your own.


troll physics
DM: If all the plants on the planet can't currently absorb the human-generated CO2 where they are, moving some of them closer to the cars certainly isn't going to help. Stupid.


troll physics
DM: One look at the bottoms of the two wheels is enough to see that this doesn't amount to "downhill" in any way whatsoever.


troll physics
DM: You don't really need a guy with a PhD to explain to you that bacon isn't a plant, right?


troll physics
DM: This actually makes an interesting point, sort of. Why don't you recoil when you shine a beam of light? The answer is -You actually do! But not at the same SPEED as the light - with the same MOMENTUM as the light. The momentum (p) of a single photon of light is equal its energy divided by the speed of light (E = c p). So how much momentum does a beam of light carry? Well, suppose we shine a 100 Watt spotlight - we are producing 100 Joules of light energy per second (a Watt is a Joule of energy per second). So every second we are giving that light a momentum of (100J) / (300,000,000m/s) = .00000033 kg m/s.

To give a sense of how hard of a push that is, let's assume that the stupid troll thing in the wagon weighs 50 kg. To accelerate the wagon up to a speed of 1 m/s (around 3 feet per second... which is still pretty slow) would take (33 million * 50) seconds, which is 52 years. And that's assuming no friction!

(In reality, it would never move at all because of friction, so we'd have to do it in space. In fact, even though this seems like a feeble form of propulsion, NASA has plans for prototypes of a "solar sail" to push space probes out of the solar system using no propulsion other than that provided by reflected sunlight!)

http://www.urlesque.com/2010/10/25/i-showed-troll-physics-comics-to-a-physics-professor/

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Grilled sausage scented iPhone soap

iPhone_soap.jpg

The holiday buying season is around the corner. What do you get that certain someone who has everything? Why, grilled sausage scented iPhone soap, of course! Talk about a gift giving trifecta. Combine supernatural gadget lust with a cardiac inducing appreciation of grilled meats, through in a little improved personal hygiene, and you've got one heck of a stocking stuffer. Boston area maker twoeggplants sums up their creation:

This iPhone soap is roughly the same size as the actual iPhone. It has the black button at the bottom and the "screen icons" in its "flat screen". The top layer of the soap is dark grayish black and the bottom layer is a slightly lighter shade of gray. I must say that this is one of my coolest creations and each feature is meticulously created. I hope you like the result of the many experiments and hours I spent to perfect it!

It weighs about 3.75 oz and it is scented with a fun Grilled Sausages fragrance. (I'm happy to provide a list of available fragrances to customize it as well.) Not only does it look cool, it is also infused with shea butter. It can also be made without fragrances or without shea butter.

http://blog.makezine.com/archive/2010/10/grilled_sausage_scented_iphone_soap.html

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2001 monolith replica machined to 0.001"

monolith4x9.jpg

SO. It turns out the 2001 monolith (in)action figure I wrote about last week is one of ThinkGeek's prank products. You can't actually buy one. Yet.

It's a clever trick, really: Call it an "April Fool's" product, then count the number of clicks on the buy link, and decide based on that info if you really want to manufacture and sell them, or not.

Me? Bitter? 'Course not.

Anyway, reader Dan Simpson saw that post and commented that

[b]ack in the 70s, I was commissioned to make one of these. I used one inch thick black acrylic plastic, and machined it to a thousandth of an inch accuracy on a vertical mill, then gave it a satin finish. Now, around three decades later, it's in stores. But I still have my prototype, which is a few thousandths off....

I asked, and Dan was kind enough to throw me a bone (sorry) with this photograph of his prototype. If it looks a bit funny, here, it's probably because I couldn't resist the temptation to crop it to 400.0 x 900.0 pixels. Although I am insufficiently evolved to perceive them, Dan assures me that the model's hyperspatial dimensions are equally precise. [Thanks, Dan!]

http://blog.makezine.com/archive/2010/10/2001_monolith_replica_machined_to_0.html


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Monday, October 25, 2010

Meme-ify Your Home With These 10 Internet Wall Hangings Currently for Sale on Etsy

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xzibit
Etsy
Etsy is the only place on the internet that might actually induce menstruation within the first thirty seconds of browsing; but don't worry, someone is probably selling homemade tampons.

Some of you might have seen the Xzibit needlepoint that's been floating around the internet these past couple days, and if you're like me you probably found yourself wondering, "Hey, is there any other crazy internet crap that I could be hanging on my walls?"

Well, I've scoured the marketplace and come up with ten of Etsy's finest wall hangings. I promise we'll give prizes to anyone who sends a family Thanksgiving photo taken under a Pedobear cross-stitch.

 

http://www.urlesque.com/2010/10/22/meme-ify-your-home-with-these-10-things-currently-for-sale-etsy/


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There Are 5,000 Janitors in the U.S. with PhDs [Education]

There are 18,000 parking lot attendants in the U.S. with college degrees. There are 5,000 janitors in the U.S. with PhDs. In all, some 17 million college-educated Americans have jobs that don't require their level of education. Why? More »









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What Obi-Wan was REALLY doing between Star Wars Episode III and IV

What Obi-Wan was REALLY doing between Star Wars Episode III and IV

If you ever thought Obi-Wan Kenobi was a dick ... it turns out that he was. A private dick, that is. Check out the adventures of "Ben Kenobi: Private Jedeye," a short film which turns the Jedi into a 1940s noir detective.




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Husband confronts abortion protesters


Jerrycrew writes: "We had to abort our 16-week-old dying baby and were accosted by these zealots."

From Salon:

We're used to seeing videos of anti-abortion activists spewing venom in front of women's clinics, but rarely do we get to see the tables turned. Thanks to Aaron Gouveia, now we do.

He and his 16-weeks-pregnant wife went to a women's clinic in Brookline, Mass. for an abortion after discovering that their baby had a congenital deformity with no chance for survival. On their way in, they were confronted by images of dismembered fetuses and two women yelling, "You're killing your unborn baby!" Enraged, Gouveia decided to confront the protesters while his wife was in surgery, and he caught the whole interaction on his cellphone.

Husband confronts abortion protesters (Via Cynical-C Blog)


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Fauxtoshop: 15 Phenomenal Forced-Perspective Photos

[ By Steph in Architecture & Design, Gadgets & Geek Art. ]

How do you make a full-sized commercial airplane look like a toy, or give the illusion that your human subject is touching a cloud? Photoshop is an easy answer, but a much more low-tech method produces results that are just as amazing: forced perspective photography. Just as in filmmaking when miniatures convincingly stand in for buildings, landscapes or fantastical creatures, the trick is all in positioning, lighting and timing.

The Old Tower of Pisa Trick

(image via: martyportier)

Everyone is familiar with this iteration of the forced-perspective photography trick: pretending to hold up the Leaning Tower of Pisa. It's all about where you place your subject in relation to the background. At least this photographer took a different tack, giving his model a 'relaxed' pose.

Pluck a Sphere of Light

(image via: mr. moog)

Take that same idea and apply it in a new way and you've got the kind of photo that makes you look twice. To achieve this effect, photographer Lee 'Mr. Moog' used shallow focus and allowed the lens of his camera to render out-of-focus points of lights as little floating spheres.

Mind Your Step

(image via: maybemaq)

Is that the foot of a giant descending from the sky to crush a priceless historical site into bits of gravel? From this angle, it sure looks like it.

The Scariest Watering Can Ever

(image via: froodmat)

When a watering can is big enough to suck you up into its spout, you'd better run.

Blowing in the Wind

(image via: jeppe olsen)

Photographer Jeppe Olsen took a whole set of forced perspective photos out in the Salar de Uyuni salt flats in Bolivia, which provide a minimalist background ideal for deceptive shots like this one, making both the foreground and background subjects stand out equally.

Fixing the Washington Monument

(image via: mjsmith01)

What kind of monstrous crane would be required to pluck the Washington Monument right out of the ground? The silhouetted crane and illumination of the monument make this photo even more effective.

Miniature Woman

(image via: alexandre duarte)

Forced perspective photography takes more than just selective focus or using the blur/sharpen tool in Photoshop. Clever positioning and light are also crucial elements in a successful photograph.

Tiny Plane Crash

(image via: maybemaq)

In some cases – like this one – timing is everything. No special effects or Photoshop necessary.

Hold On Tight!

(image via: emikw)

One of the famed natural formations in Arches National Park, Utah is in the palm of this photographer's hand when sharp focus is maintained on the entire image.

Giant Jesus and the Toy Plane

(image via: david leeth)

Even 900-foot-tall stone Jesus gets bored sometimes, so having a toy plane to play with is a plus.

Toy Cars, or Giant Man?

(image via: erkannix)

This is definitely one of those photos that make you go, "what?" It's hard to tell exactly how the photographer achieved this effect, but according to his Flickr, there was no Photoshop involved.

Please Don't Fall, Cloud

(image via: p0rg)

The artist says "I kept messing it up and not aligning myself ( I was using tripod & self timer) and did it about 10 or so times. When I was happy with the result, I turned and saw that an old man walking his dog had stopped to watch my bizarre antics. He smiled and walked off. I must have looked completely mad because he was not in line with the cloud, so he would have seen my press my camera, run like a madman to the same spot 10 times and preform a melodramatic pray to god."

Hanging Out

(image via: laura deangelis)

"Three years ago, I picked this guy up, put him in my pocket and claimed him as my own," says photographer Laura DeAngelis.

Splitting Headache

(image via: the moronic inferno)

Believe it or not, this photo wasn't staged. Photographer Dave Brownlee calls it 'serendipity' that the heads and bodies of four separate people just happened to line up so well.

Puzzling Place, Indeed

(image via: richard heeks)

In this case, it's the location that's providing the illusion, not a trick of photography. The Puzzle Museum in Keswick, England contains an oddly-shaped room with a sloping ceiling, walls and floor so that from a certain vantage point, turning one person into a terrifying giant.


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