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Best Robot Dance ever

How many times did you watch it?

Asmo says...

Watch the shadow on the white tile splashback, it becomes quite clear when they cut the vid.

3 times incidentally.

KrazyKat42 said:

6 and counting. I still haven't figured it out yet.

Edit 10 times. I do see a moment at 4 sec where the ice cubes move.

newtboy (Member Profile)

siftbot says...

Congratulations! Your video, Building A Tiled Roof Hut, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.

This achievement has earned you your "Golden One" Level 32 Badge!

Building a primitive wattle and daub hut from scratch

newtboy (Member Profile)

ant (Member Profile)

Should gay people be allowed to marry?

fuzzyundies says...

The issue for you is not "change", but that society would "capitulate" for "such an insignificant demographic group" of "less than 4% of the population", correct?

You cited this Gallup poll (http://www.gallup.com/poll/182837/estimated-780-000-americans-sex-marriages.aspx?utm_source=SAME_SEX_RELATIONS&utm_medium=topic&utm_campaign=tiles) of how many Americans were in same sex marriages.

Another Gallup poll shows the historical trend of religious self-identification in America from 1948 to 2014: http://www.gallup.com/poll/1690/religion.aspx

In 1948, the proportion of respondents who self-identify as either Protestant, Roman Catholic, or Jewish, is 95%. ~5% said "None" or didn't answer (less than 0.5% said "Other").

In following years, they tracked more detailed responses and grouped some as "Christian (nonspecific)" and Mormon, and changed the Roman Catholic grouping to just Catholic.

In 2014, those who specified a religion (which is everyone except those who said their religion was "None" or didn't answer) represented 80%.

The full statistics are in that link -- these two years are endpoints in the polls, but not outliers.

Thus, over 66 years Americans who identified as religious (not all of whom follow the Bible, but most do so I'll be generous to you) lost 15 percentage points. That's a rate of 0.227272 percentage points per year.

If Americans keep leaving religion behind at this same rate, in 2348 all religious people will represent less than 4% of the population.

Then we get to trample your rights, right Bob?

bobknight33 said:

The "change" is not the issue for me. Its the tail wagging the dog that I am asking about.


Why should any society capitulate for such an insignificant demographic group?

Gays make up less then 4% of population.

And for gay marriage the % is even less than 1% The question really becomes Why should 1% demographic force the 99% to change?

IF the word gay is clouding you thoughts change it ti KKK, NAMBLA, Black supremacist or any another insignificant demographic group...



To answer you question the very definition of marriage would change.

Should gay people be allowed to marry?

bobknight33 says...

Racist, bigot and homophobic have nothing to do with this argument, Yet another straw man argument from the left.

The question really becomes Why should 1% demographic force the 99% to change its thinking?



http://www.gallup.com/poll/182837/estimated-780-000-americans-sex-marriages.aspx?utm_source=SAME_SEX_RELATIONS&utm_medium=topic&utm_campaign=tiles

Approximately 0.3% of adults in the U.S. are married to a same-sex spouse, and another 0.5% identify as being in a same-sex domestic partnership

ChaosEngine said:

Yeah, fuck those 280 million gay people! Look at them... asking for rights like real people. They should just crawl back to their holes so bob can continue his racist, bigoted, homophobic, uneducated ways without fear of seeing anything that he doesn't like.

Btw, there are more gay people than people named bob. Does that mean you can't marry either? For the sake of the women of the world, I can only hope so.

Virtual reality, explained with some trippy optical illusion

entr0py says...

I like how he points out that the color "illusions" are not actually a brain failure, but an amazing visual processing feature honed by evolution. If the rubix cube were a real object photographed in yellow light and then in blue light, those tiles would have to be yellow and blue (not grey). It's like our brains calculate the true color under white light, and that's what we see.

Just think about how useful that is, without that feature we could never build up knowledge about what color different plants and animals are, because their color would seem to change drastically with the lighting conditions.

Virtual reality, explained with some trippy optical illusion

newtboy says...

? I'm confused. I admitted my 'test' was lacking, and deferred to @ChaosEngine who didn't trust his eyes but measured...so I am no longer certain it's 'fake' at all, in fact I was careful to NEVER call it 'fake'. Perhaps you only read my first post in this thread and missed my admission that I was wrong?

As I said, I think there's a reason it LOOKED like it did to me...probably the surrounding color reflecting off the white paper I used to mask off and 'coloring' the grey squares....and likely the paper I used was not perfectly straight to use as a straight edge....and measuring anything on a screen is less than perfect, which is why I poorly measured the table and lines...the second time I measured it I did better, and I admit they are the same size contrary to my original statement.
I also only saw grey pills.

The reason I was skeptical is I've seen these same 'illusions' faked many times. For instance, the last time I saw the Rubik's cube, the tiles had dark shaded colored edges they removed when 'masking off' which obviously changed the color. It's not that I don't 'believe' in optical illusions, I just think people are cheaters more often than not these days and fudge things they don't need to fudge. This time it was my method of 'masking off' that seems to be my issue...I don't have an image editor that will do much for me here....sadly...but it doesn't mean I don't trust Chaosengine who did and set me straight.
OK? ;-)

lucky760 said:

@newtboy - I'm blown away at how certain you are it's all fake. I suggest you do what I did: Instead of using paper on your screen, just take a screenshot and insert into an image editor and inspect things there.

I cut the three tiles out and pasted them side-by-side and they are in fact the same color: http://i.imgur.com/e5lcV5P.png

I dragged straight lines on the checkerboard before and after the dots were added, and it has only straight lines.

I copied/pasted the blue tabletop, rotated it and it fit perfectly on the other one: http://i.imgur.com/QzT8nc8.png

Nothing was fudged in the video. It just shows how powerfully your brain is latching onto what it believes it is seeing.

It's like that dress photo from a few weeks ago. "Is it white and gold or purple and black?!" Many people were hardcore in one direction or the other.

The only one that left me confused is the pills. 1) He said they were red and blue, but they were yellow and turquoise. 2) They had holes in the pills allowing the background color through; it was only there that they looked colored, otherwise they were just gray. I suspect they were just trying to shoe-horn in a red pill blue pill Matrix reference.

Virtual reality, explained with some trippy optical illusion

lucky760 says...

@newtboy - I'm blown away at how certain you are it's all fake. I suggest you do what I did: Instead of using paper on your screen, just take a screenshot and insert into an image editor and inspect things there.

I cut the three tiles out and pasted them side-by-side and they are in fact the same color: http://i.imgur.com/e5lcV5P.png

I dragged straight lines on the checkerboard before and after the dots were added, and it has only straight lines.

I copied/pasted the blue tabletop, rotated it and it fit perfectly on the other one: http://i.imgur.com/QzT8nc8.png

Nothing was fudged in the video. It just shows how powerfully your brain is latching onto what it believes it is seeing.

It's like that dress photo from a few weeks ago. "Is it white and gold or purple and black?!" Many people were hardcore in one direction or the other.

The only one that left me confused is the pills. 1) He said they were red and blue, but they were yellow and turquoise. 2) They had holes in the pills allowing the background color through; it was only there that they looked colored, otherwise they were just gray. I suspect they were just trying to shoe-horn in a red pill blue pill Matrix reference.

Virtual reality, explained with some trippy optical illusion

newtboy says...

You went farther than I did then.
All I can say is when I cut out squares in a piece of paper, I could see a difference until they 'masked off' the image, then it had changed. I know these can work without fudging, which is why I was disappointed.
Did you note the difference between the 'colored' image and the 'masked off' image? It sure seems like there's a difference to me, if I stop it 1/2 way through and cover all but 2 squares, one is slightly lighter than the other on my monitor. That went for both the cubes and the floor tiles. Maybe it's 'eye memory' or something, but it sure seemed to me that the center tile was noticeably lighter until the 'masking off' happened.
I used a piece of paper against my monitor to measure the table,....I must have moved it when marking it, because now when I do it, it seems the tables ARE the same size. Damn touch screen, kept starting the video every time I touched it.
If those lines were really pixel straight, my paper is cut with a curve or my monitor has a problem.
Again, you went farther than I did to prove it, so I'll defer to you and accept I'm seeing things, even when I mask them off myself.

EDIT: Just a thought why I may have seen it differently, do you think it's possible that 'light bleed' or 'color bleed' on my monitor has anything to do with it? I mean, since the pixel next to the 'grey' block might be glowing bright yellow, it could color the grey slightly yellow, while the RGB value would not change?

ChaosEngine said:

Sorry, newt, but that's simply inaccurate.

I saw two grey pills too, but you're completely wrong about the others. I screen shotted all the images into paint.net to verify them.

The rubix cube image is 100% real. The RGB values for the blue and yellow tiles are identical (127,128,129).

Same with the the tiles under the table. They are are off by a small amount (rgb 70 68 71 vs rgb 70 68 70), but I'd but that down to the video encoding.

Ditto with the checkboard; zooming in with paint.net the lines are pixel straight (there is some anti-aliasing at the edges, but it doesn't affect the "straightness of the checkerboard").

The tables too, are the same size. I rotated the vertical table.

If you don't believe me, try it yourself.

Virtual reality, explained with some trippy optical illusion

ChaosEngine says...

Sorry, newt, but that's simply inaccurate.

I saw two grey pills too, but you're completely wrong about the others. I screen shotted all the images into paint.net to verify them.

The rubix cube image is 100% real. The RGB values for the blue and yellow tiles are identical (127,128,129).

Same with the the tiles under the table. They are are off by a small amount (rgb 70 68 71 vs rgb 70 68 70), but I'd but that down to the video encoding.

Ditto with the checkboard; zooming in with paint.net the lines are pixel straight (there is some anti-aliasing at the edges, but it doesn't affect the "straightness of the checkerboard").

The tables too, are the same size. I rotated the vertical table.

If you don't believe me, try it yourself.

newtboy said:

OK. Looking extremely closely and using paper to block out the image, I have to say they fudged things on some of them.
I saw two grey pills the whole time.
The colored tiles fade to grey as they "mask off" the other tiles, they start no where near the shade of grey they end up as, their color has faded a lot in the process.
The grey tiles on the floor also change shades as they are 'masked off' quite clearly. I went 1/4 speed, and also tried masking them off myself, they clearly faked this one.
I put a straight edge on the checker board and sure enough, those lines are slightly curved....just barely but they are.
The two table tops are NOT the same size at first, I measured and the vertical table is definitely longer on the long side. That one's obvious.
The spinning dots does work for me, as do convex images and auditory illusions.
So I'm not ready to call 'fake' on this, but IMO it's fudged badly.

Virtual reality, explained with some trippy optical illusion

newtboy says...

OK. Looking extremely closely and using paper to block out the image, I have to say they fudged things on some of them.
I saw two grey pills the whole time.
The colored tiles fade to grey as they "mask off" the other tiles, they start no where near the shade of grey they end up as, their color has faded a lot in the process.
The grey tiles on the floor also change shades as they are 'masked off' quite clearly. I went 1/4 speed, and also tried masking them off myself, they clearly faked this one.
I put a straight edge on the checker board and sure enough, those lines are slightly curved....just barely but they are.
The two table tops are NOT the same size at first, I measured and the vertical table is definitely longer on the long side. That one's obvious. (EDIT:I'm wrong about that)
The spinning dots does work for me, as do convex images and auditory illusions.
So I'm not ready to call 'fake' on this, but IMO it's fudged badly.

Solar Roadways - Reality Check

halfAcat says...

Assume A=1m^2 of t=5cm thick glass, thermal conductivity k=1W/(m*K), glass to be kept at a constant 5°C with an average ambient temperature (averaged over the whole winter season day and night) of 0°C => temperature difference DT=5°C (also no salt to help, original promo video claimed that as an advantage of these things), you'll need roughly

A*k*DT/t = 100W of constant power (day and night for the entire winter!) to keep the tiles at 5C (i.e. 100W/m^2 of tile).

There's NO WAY you'll produce that much power per square meter on average (day and night!) in the northern winter (!), meaning the tiles would soon be covered by that thin hard layer of compacted snow that you get, rendering them basically worthless in the winter.

There's also a negative feedback mechanism: if you don't produce enough power to melt all the snow or ice, some of the area gets blocked, which reduces power output even further.

Where I lived, in northern MI, these tiles would be useless for about 9 months of the year

xxovercastxx said:

Apparently it takes a shitload of energy to melt ice, but how much energy does it take to prevent ice from forming?



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