So, What I'm Getting Is Metric Vs. Imperial Is A States' Right Issue

Performed by: Morgan Day and Emily Wigger

Number: “Super Mario Bros”

Style: Lindy Hop

From: National Jitterbug Championships 2011

The only one who needs ivory is an elephant

'We are failing the elephants'

CNN's David McKenzie investigates the horrors of elephant poaching in Africa. He fears our only memories of elephants may be those of their mutilated corposes.

Now, with current rates of poaching, they will be wiped out from some of their range states.They could even go locally extinct.

Sympathy cards for scientists | @myjetpack

Is SQL useful for astrophysics or chemistry in any way?

Well the Q and the L aren’t but as you can see astrophysics and chemistry both use the letter S at least once per word. Hope that helped you

The Secret to Small Drone Obstacle Avoidance Is to Just Crash Into Stuff

Small drones bumble through obstacles just like bees

Roboticists are putting a tremendous amount of time and effort into finding the right combination of sensors and algorithms that will keep their drones from smashing into things. It’s a very difficult problem: With a few exceptions, you’ve got small platforms that move fast and don’t have the payload capability for the kind of sensors or computers that you really need to do real-time avoidance of things like trees or powerlines. And without obstacle avoidance, how will we ever have drones that can deliver new athletic socks to our doorstep in 30 minutes or less?

At the University of Pennsylvania’s GRASP Lab, where they’ve been working very very hard at getting quadrotors to fly through windows without running into them, Yash Mulgaonkar, Luis Guerrero-Bonilla, Anurag Makineni, and Professor Vijay Kumar have come up with what seems to be a much simpler solution for navigation and obstacle avoidance with swarms of small aerial robots: Give them a roll cage, and just let them run into whatever is in their way. Seriously, it’ll be fine!

This kind of “it’ll be fine” philosophy is what you find in most small flying insects, like bees: They don’t worry all that much about bumbling into stuff, or each other, they just kind of shrug it off and keep on going. Or, if you’re a roboticist, you might say something like, “The penalty due to collisions is small at these scales and sensors and controllers are not precise enough to guarantee collision free trajectories,” so stop trying to solve the collision problem, and just focus on not completely trashing yourself when you hit something. (Swiss startup Flyability was among the first to demonstrate the benefits of collision robustness by equipping a regular-size drone with a gimballed protective cage and flying through forests and ice caves.)

2,200 years ago in Turkey, this insane rental agreement was inscribed in stone

Written in Greek, the lease allows renters to use slaves that come with the property

No ripping up this rental agreement. And the punishments for not looking after the property, not paying the rent, etc. Nuts. Plus new legal terminology. Great stuff.

Soooo many Pepakura at THIS deviantart.…will have to try this sometime.  Not just Skyrim, lots of your other favorite games too. 

I second wanting prints of these

Alejandro Guijarro photographs the chalkboards of some of the brightest minds in quantum physics for his continuing series Momentum. He went to research facilities like CERN and many of the top universities in the world to find them.

Watch subsequent decades have a mass exodus from the tropics towards the poles

Population density, 3000 BC to 2000 AD