theatlantic:

Do America’s Schools Need to Change? Depends What You Compare Them Too

It’s no secret that America’s education debate is increasingly polarized and increasingly public. We see it every day on Twitter, in the headlines, and occasionally even on the picket line. The public discussion pits reformers who think that our education system is failing students against anti-reformers who think what’s wrong with our schools is the people trying to fix them. I’ve been immersed in American education for more than 20 years and have led a global education network for the last seven, and to me there’s no question that our school system must improve, and quickly. But today’s debate has become a distraction that keeps us paralyzed in old divisions and false debates, rather than uniting against common problems. 

Two recent bestselling books on education, Diane Ravitch’s Reign of Error and Amanda Ripley’s The Smartest Kids in the World, shine light on the conflictand why taking a step back and embracing a global perspective is necessary to move forward.

Read more. [Image: Kim Hong-Ji/Reuters]

We still do not have a definitive idea of what our education system’s outcomes should be.

(Reblogged from theatlantic)
1ucasvb:

The ballistic ellipsoid

Please, see the last post for more details on this!

For a given initial speed, the highest points of all parabolic trajectories form an ellipse. This is an extension to 3 dimensions of a previous post.

I rendered this for the fine folks at reddit, but I figured I could post it here as well. Had to shrink it a bit due to the file size.

Ballistic ellipsoid

1ucasvb:

The ballistic ellipsoid

Please, see the last post for more details on this!

For a given initial speed, the highest points of all parabolic trajectories form an ellipse. This is an extension to 3 dimensions of a previous post.

I rendered this for the fine folks at reddit, but I figured I could post it here as well. Had to shrink it a bit due to the file size.

Ballistic ellipsoid

(Reblogged from 1ucasvb)
(Reblogged from laughingsquid)

(Source: tibets)

(Reblogged from wolvesdontwearboots)
Paradox

Paradox

(Source: meme-meme)

(Reblogged from littlemiss)

dammmien:

Jay-Z no se equivoca / Jay-Z it’s never wrong

(Reblogged from visualgraphc)
(Reblogged from visualgraphc)

maxistentialist:

This is a lot better than my college vandalism.

(Reblogged from maxistentialist)

ragbag:

raynor ganan signature masala

one of my 2012 goals is to create a raynor ganan signature masala™—a sekrit spice blend that people will want to flavor everything from their eggs to their popcorn with. to do so, i’ve been scouring the local spice markets for exotic ingredients from far off corners of the globe. i have a rudimentary concoction right now but i’ve come to a very important realisation: namely, while i know what spices i like, i have no idea how spices go together. to help me better understand the synergy among turmeric and thyme and coriander and cream of tartar, i developed this chart which breaks down established spice blends into their (sometimes) shared ingredients. and now i am one step closer to inventing the next ranch seasoning.

__

on another flavor note: if you have any advice for me about what ingredients should go into the raynor ganan signature masala™, i would really really like to hear from you. perhaps you know of a rare local spice that the international flavor market overlooks. maybe you grow a special aphrodisiac mushroom in your basement and want to tell me how tasty it is. perhaps there was a fictional spice in a science fiction novel that you want me to investigate. let me know!

(Reblogged from ragbag)

thekidshouldseethis:

We love when kids take science and the art of making into their own hands. This kid made his own balloon-powered boat!

Related: Inexpensive balloon-powered boat kits found online and DIY Ideas on How to Make Balloon-Powered Vehicles!

(Reblogged from thekidshouldseethis)