Swans on Tea

It also comes with great current times potential difference.
Click the cartoon to go to XKCD and see the hover tag.

Rhett analyzes a football collision. Momentum and Football

Bookends for physics geeks
We said that it’s simple, and it is: it’s a brick wrapped in a piece of paper.
If you don’t have a couple of bricks (and we didn’t), they turn out to be cheap at hardware and home improvement stores. These are “cement bricks” — red dyed cement– and cost about $0.25 each. [...]

Quaternion Julia Fractals
The definition of a Julia set can get a bit complicated, but it can be thought of as an object that carves up four-dimensional space into two categories – belonging to the set, and not belonging to the set. How exactly the shape is carved depends on some very deep mathematics.

The Onion: NFL Scientists Postulate Theoretical Down Before First Down
Citing the extremely low level of entropy present before a normal set of football downs, scientists from the NFL’s quantum mechanics and cosmology laboratories spoke Monday of a theoretical proto-down before the first.

“You can say that again” — The King of Id
My molar has apparently abdicated — it rejected its crown. Ugh. Fortunately I was able to have the dentist see me and fix my little problem.

An assassination attempt, with emphasis on ass: the bomb was concealed in the orifice of choice for concealing items. I’d say convenient orifice, but it’s probably not all that convenient.
The bomb couldn’t be that big, and water (being a large fraction of the human body) isn’t very good shrapnel.
While the assassination proved unsuccessful, [...]

I don’t generally watch the teen-coming-of-age drama shows, unless forced (as I was on vacation; the episode of Degrassi was a cheap ripoff of Pump Up the Volume without the benefit of a topless shot of Samantha Mathis), but I’m sure this plot has been covered somewhere: Awkward Teen asks the Beautiful Cheerleader [...]

Throwies are simple LED circuits — the LED and a battery, with an optional magnet so they will stick to ferromagnetic materials.
Evil Mad Scientist Laboratories does a pretty exhaustive analysis on the circuits, looking at battery life and potential danger of these simple circuits. Some thoughts on throwies
This data shows a couple of interesting things. [...]

(Wired) Reader Photo Gallery: Awesome DIY Astronomy

Entanglement in the Macro World
By linking the electrical currents of two superconductors large enough to be seen with the naked eye, researchers have extended the domain of observable quantum effects. Billions of flowing electrons in the superconductors can collectively exhibit a weird quantum property called entanglement, usually confined to the realm of tiny particles, scientists [...]

STUDY: U.S. subsidises fossil fuels 2.5 times more than renewables
Fossil fuels were given about $72 billion during the seven years, while renewable fuels got just $29 billion. The money the U.S. spends on renewables isn’t all that great, either. Of the $29 billion, $16.8 billion went to producing corn-based ethanol. Just two tax credits – [...]