Dataisbeautiful dataisbeautiful

Visualization of internet usage from Carna Botnet [OC]

Visualization of internet usage from Carna Botnet [OC]

You can actually see the daytime sin wave travelling across the world

Thank you :D

Have a nice day !

Your other post has been approved, cheers!

Where is Canada? :)

[OC] Crop to Cup. I grew coffee and drank it, made some notes.

[OC] Crop to Cup. I grew coffee and drank it, made some notes.

I teach a unit about resource consumption, and it’s really hard for students to grasp the waste that happens before they even have the final product. This is great illustration of that!

I believe so. And it is being considered waste because its mass did not end up being part of the end product.

I’m confused about moisture being part of "waste." Is that the natural moisture within the coffee beans before it's dried?

This^

The water vapour isnt a damaging waste, but to dry it requires energy. If the beans are machine-dried that requires energy input, hence fossil fuels. If sun-dried that probably takes up landspace.

Billions of dollars stolen every year in the U.S. (from Wage Theft vs. Other Types of Theft) [OC]

Billions of dollars stolen every year in the U.S. (from Wage Theft vs. Other Types of Theft) [OC]

I'm interested in seeing how much is stolen by way of misappropriated safety deposits from landlords

Also "civil forfeiture"

The last complex I lived in gave out a "new resident guide" upon move-in...it was a legit book, not part of the lease. Not something we signed.

They also sent out a monthly newsletter. One month the newsletter offered a friendly reminder that most people who moved out before 18 months would be charged an average of $550 for carpet cleaning, painting, etc. I remember seeing that and being like, WHAT. And in the newsletter they're like, "This is in your new resident guide." As if we signed off on it. Def did not.

So when it came time for me to move out, I cleaned the SHIT out of that place. I spackled the holes in the wall, scrubbed everything. I knew there were a couple things they'd have a right to deduct from my deposit for (some broken blinds, mainly), but otherwise it was in great shape. I researched my state's tenant laws and knew they had no right to charge me for normal wear and tear, but I had a feeling I'd only get a fraction of my deposit back.

Sure enough, the check comes after move-out, and they've kept $520. I FREAK. Jumped into action immediately, wrote them a long letter with pictures attached and cited specific laws that protected me from this. I argued that if you routinely bill everyone for these costs, they are the definition of normal wear and tear, which is precisely what the law protects us from being charged for. Their response wasn't great, of course. They're like, we'll give this to our investigation team and get back to you in a month. I'm like, no, you will not do that. I need this money to move into a new place, and I worked my ass off to leave that place sparkling clean. You will address this now, and you'll save money just cutting me a check for what you still owe me instead of letting this go to small claims, where they're going to charge you more for dicking me over. They're like, "Don't threaten us." I'm like, not a threat. This is just the reality. Your own maintenance guy told me to my face that my place is spotless and now you're charging me more than any landlord has ever charged me before for standard shit.

They did eventually cough up MOST of the rest, and it kept me from going to court. Assholes.

I have a lawyer friend who I consulted on this. He doesn't live in my state and couldn't do much aside from give me advice, but he said that since this is such a huge management company, I could probably find a lawyer who'd actually file suit on behalf of all the tenants they've screwed over. If they're doing this to everyone, man, they make a killing.

I had a boss that owns a chain of "local" pet supply stores in New Mexico. He would demand that we came in early and worked on getting the store opened up off the clock. It wasn't until the front doors opened that we were allowed to clock in. Refusing to do so resulted in my hours being altered. I wasn't sure that was legal, and eventually I quit over it. Us workers were making barely above minimum wage, and most people needed money so bad they were willing to put up with it in order to not get in trouble.

It's such a sleazy move that I bet most small-scale retail stores pull on their employees.

EDIT: Since I guess it's not hard to figure out the business, and to prevent a spike in pitchfork distribution, I will say that this was several years ago, and I can't speak for how things are now.

The first search suggestion for "when will ___" on Google for every country and continent in the world [OC]

The first search suggestion for "when will ___" on Google for every country and continent in the world [OC]

Laughed at Madagascar 4

Cried at all the islands sinking

Got seriously uncomfortable at Germany rising again

The problem with this is that it should be asked in the native language of the country to really get an idea of what the people really think in that country, otherwise u just get the English spiking search about that country

That's a feature of this piece of data.

"When will melt" for Greenland, lmao

I think just the novelty of "when will" preceding all these keywords is funny by itself

Delhi Metro Map vs True Geometry [OC]

I made this using google maps and this metro map, inspired by similar posts of other cities. Animation and paths done in after effects.

I have a real problem with that little blue loop at the bottom. Look at how the metro map actually rotates it.

This is really cool, OP

Hey, someone should do this for Detroit!

Oh wait, we don’t have subways. Or railroads. Or more than one terrible train.

The geography of terrorism - monthly deaths between 2012 and 2016 (animated gif) [OC]

The geography of terrorism - monthly deaths between 2012 and 2016 (animated gif) [OC]

So to walk to the store to buy some bread in Afghanistan, you have to step over two unattended luggage bags and sidestep at least a crazy man with a knife I have to assume.

It's almost like this data could teach us something.

Too bad this is reddit and we're unable to state facts.

Actually, there were nearly twice more terrorism deaths in Iraq compared Afghanistan since 2012 (it is more obvious in the 3rd graphic in this article )

No, it doesn't. The definition of GTD for terrorism is rather inclusive but excludes any state actors such as the US army:

The GTD defines a terrorist attack as the threatened or actual use of illegal force and violence by a non-state actor to attain a political, economic, religious, or social goal through fear, coercion, or intimidation

Heatmap of NYTimes Crossword grids by day of week [OC]

Heatmap of NYTimes Crossword grids by day of week [OC]

this is so interesting -- I never would have guessed that there is a different average pattern unique to each day.

You just described the life of many graduate students.

Now imagine doing all that data analysis to reveal that it was actually completely patternless.

Made with Python and Matplotlib.

Source: I work for the NYT Games team and though it'd be fun to see if I could find patterns within all historic puzzles. Thought it was interesting to see the similarities between Thursday and Saturday (themed puzzles), as well as the tendency for diagonal lines to slant right.

Millennials are the most employed generation in two occupational areas: food service and the military.

Millennials are the most employed generation in two occupational areas: food service and the mili...
Millennials are the most employed generation in two occupational areas: food service and the mili...

All you have to pay is your life!

Would that be historically unusual for that generation at this point in its demographic life?

The military has a sort of built in age-cap. Older service members get out either because they 1) reach retirement benefits, 2) get injured, 3) end of contract/get out, or 4) hit promotion limit. I'm not including DOD civilians though.

As for food service, I don't know enough about it, but I imagine its a more a transitory job for most workers in that industry.

The military is a sweet gig for millennials. While you're in you get:

Free food/housing

Free college

Free healthcare

Decent pay check

Job training

And then when you're out you get:

VA Gauranteed Home Loan

PAID to go to free college

And a shit ton more.

I did a center of mass analysis of a Fosbury Flopping high jump by Yuliya Levchenko! [OC]

I’m a collegiate high jump coach in the NCAA, and I really appreciate this. It’s very interesting to see a visual representation of this concept! Awesome work. Thanks!

I like how you went the extra-mile, and also included the centre-of-mass projection for her little victory-hops

What kind of monster would I be to neglect those hops!

Hello! 

So, I did another center of mass (COM) analysis thing, this time of a expertly executed high jump by Yuliya Levchenko! You can see previous posts of mine here

The beautifully of the Fosbury Flop style of high jumping (turning around and jumping back-first over the bar) is that it allows the COM of the jumper to travel under the bar while the body moves over it. When you jump, the amount of energy you put into your body defines the ballistic trajectory of your COM. Once her feet left contact with the ground the trajectory of Yuliya's COM was determined by the same classical Newtonian mechanics that define the trajectory of a cannonball in flight.

However, although your COM is a description of your body, it is not a part of your body. It is entirely possible to move your body into a shape where your COM is not in your body at all (you can see this in the later parts of this old handstand gif I posted some time back). Dick Fosbury's great insight was to realize that by bending the body around the bar during a jump the jumper could get their body over a bar that was too high to clear with their COM.

Just one of the myriad ways that we manipulate the inexorable physics of our bodies to push the boundaries of human performance. Although this high jump is an extreme example, these same mechanics are inherent in the way that your central nervous system allows you to control the movement of your body through your everyday life



METHODS

Step 1 - See cool high jumping gif on Reddit

Step 2 - Forget about it for 3 months

Step 3 - See another cool high jumping gif on reddit and then post to /r/ImageStabilization requesting a PanoGif (shout out to u/ibru for the incredible stabilized gif!!)

Step 4 - Do all the same stuff I normally do to make these gifs: 

First, I pull the video into Tracker and manually track the jumper's joints through each frame. Then I port that data into Matlab, where I calculate the COM using the Winter anthropometry tables. COM acceleration is calculated by taking the double (numerical) derivative of COM position - That is, you find COM velocity by finding the difference in COM position on each frame, and then find acceleration by finding the difference in COM velocity (diff(diff(comXY)) in Matlab). FYI, this is also known as "calculus." Then I just sex up the visualizations and throw it on the Internet! 

Raw videos, data, and Matlab code available here



What I assume will be Frequently Asked Questions -

1- Can I use this gif for a class/presentation/project/etc?

Absolutely!! One of the coolest things about making these gifs is the number of teachers, trainers, and students who have told me that they use my animations for classes, etc. I can't always respond in detail to folks' questions (sorry!), but I always appreciate it. Anything I post online can be used for any purpose. If you are presenting in a professional academic or scientific setting, please attribute it to my real-person identity

2a - Why aren't the COM acceleration vectors uniform during ballistic flight?

They should be, and the fact that they aren't is indicative of error somewhere in this analysis. I can think of a few possibilities - 1) This is a 2D image, but there is a lot of motion out of the image plane, 2) the stabilization is not perfect, which causes spatial warping that would break conservation of energy assumptions, 3) Error in my selection of the marker locations, and the noise in the tracking, 4) Error in the Winter anthropometry tables. 

2b - Couldn't you make an optimization algorithm to adjust the weights and positions of the different segment COM based on the assumptions that they should be uniform during ballistic flight?

Probably! I tried doing that for the Triple Jump gif I posted a while back, but never got it working. The code is all still up there, so maybe you could do it? I believe in you!

3 - Why didn't you run your COM biz on the original Fosbury high jump gif that u/ibru so lovingly stabilized?

Honestly, I just got lazy. As much as I wanted to analyze the Fosbury jump for the history of it,  Yuliya had much better form that captures the interesting mechanics of the jump. Also, the Fosbury video was recorded at a high framerate, which means it had double the frames of the Yuliya vid. As such, it would have been a lot of effort to do the joint tracking for that video, and I didn't feel like going through it. Someday, I will get some automatic joint tracking software working on my computer, which will massively speed up my work flow. When I do, I may go back to the Fosbury gif. 

Obligatory Brother Plug. It's an old video, as he's been focusing on other things recently. But still, good stuff.

Hello!

So, I did another center of mass (COM) analysis thing, this time of a expertly executed high jump by Yuliya Levchenko! You can see previous posts of mine here

The beautifully of the Fosbury Flop style of high jumping (turning around and jumping back-first over the bar) is that it allows the COM of the jumper to travel under the bar while the body moves over it. When you jump, the amount of energy you put into your body defines the ballistic trajectory of your COM. Once her feet left contact with the ground the trajectory of Yuliya's COM was determined by the same classical Newtonian mechanics that define the trajectory of a cannonball in flight.

However, although your COM is a description of your body, it is not a part of your body. It is entirely possible to move your body into a shape where your COM is not in your body at all (you can see this in the later parts of this old handstand gif I posted some time back). Dick Fosbury's great insight was to realize that by bending the body around the bar during a jump the jumper could get their body over a bar that was too high to clear with their COM.

Just one of the myriad ways that we manipulate the inexorable physics of our bodies to push the boundaries of human performance. Although this high jump is an extreme example, these same mechanics are inherent in the way that your central nervous system allows you to control the movement of your body through your everyday life

METHODS

Step 1 - See cool high jumping gif on Reddit

Step 2 - Forget about it for 3 months

Step 3 - See another cool high jumping gif on reddit and then post to /sub/imagestabilization requesting a PanoGif (shout out to u/ibru for the incredible stabilized gif!!)

Step 4 - Do all the same stuff I normally do to make these gifs:

First, I pull the video into Tracker and manually track the jumper's joints through each frame. Then I port that data into Matlab, where I calculate the COM using the . COM acceleration is calculated by taking the double (numerical) derivative of COM position - That is, you find COM velocity by finding the difference in COM position on each frame, and then find acceleration by finding the difference in COM velocity (diff(diff(comXY)) in Matlab). FYI, this is also known as "calculus." Then I just sex up the visualizations and throw it on the Internet!

Raw videos, data, and Matlab code available here

What I assume will be Frequently Asked Questions -

1- Can I use this gif for a class/presentation/project/etc?

Absolutely!! One of the coolest things about making these gifs is the number of teachers, trainers, and students who have told me that they use my animations for classes, etc. I can't always respond in detail to folks' questions (sorry!), but I always appreciate it. Anything I post online can be used for any purpose. If you are presenting in a professional academic or scientific setting, please attribute it to my real-person identity

2a - Why aren't the COM acceleration vectors uniform during ballistic flight?

They should be, and the fact that they aren't is indicative of error somewhere in this analysis. I can think of a few possibilities - 1) This is a 2D image, but there is a lot of motion out of the image plane, 2) the stabilization is not perfect, which causes spatial warping that would break conservation of energy assumptions, 3) Error in my selection of the marker locations, and the noise in the tracking, 4) Error in the Winter anthropometry tables.

2b - Couldn't you make an optimization algorithm to adjust the weights and positions of the different segment COM based on the assumptions that they should be uniform during ballistic flight?

Probably! I tried doing that for the Triple Jump gif I posted a while back, but never got it working. The code is all still up there, so maybe you could do it? I believe in you!

3 - Why didn't you run your COM biz on the original Fosbury high jump gif that u/ibru so lovingly stabilized?

Honestly, I just got lazy. As much as I wanted to analyze the Fosbury jump for the history of it, Yuliya had much better form that captures the interesting mechanics of the jump. Also, the Fosbury video was recorded at a high framerate, which means it had double the frames of the Yuliya vid. As such, it would have been a lot of effort to do the joint tracking for that video, and I didn't feel like going through it. Someday, I will get some automatic joint tracking software working on my computer, which will massively speed up my work flow. When I do, I may go back to the Fosbury gif.

Obligatory Brother Plug. It's an old video, as he's been focusing on other things recently. But still, good stuff.

Household income distribution in USA by state [OC]

Household income distribution in USA by state [OC]

My guess its a combination of low population, and concentrated wealth from extractive industries like oil/gas, commercial fishing, lumber, mining, etc. Its also probably a place that's hard to be poor in given the harsh conditions and costs associated with surviving there.

What's interesting is 8 of the 10 with higher percentage income earners are blue states and 9 of the 10 with higher percentage lower income earners are red states...

Genuine question: why is Alaska so high on the list? Are people paid more because of the work conditions? I would never have placed Alaska that high.

There's a reason everyone retires and moves south... We're better than you...

Not so sure about that. The North is up 1-0 since 1865.

Try one of these subthreads