Exploding cube!

Spell with Flickr

How cool is this!! Go to spell with flickr and type in your name or your favourite word and watch what happens.

... and here's another one...

The images above are not full-size. I had to take a screenshot and reduce them down so they'd fit within the width of one blog entry column. To see the full image and the links for the location of each letter, click on each word above.

Kitties need cuddles!

I saw this article in SMH about making sure your kitty gets cuddles when you're away. Actually, the article is about housesitters, but the first few paragraphs are about kitties needing proper cuddles while you're away. Fuzzy.

Optical illusions

Check out these optical illusions. At first very cool, and then very weird. You'll see what I mean...

Cow tipping myth debunked

Scientists at the University of British Columbia in Canada have investigated the physics of cow tipping and concluded that the force required to actually tip a cow means it's pretty unlikely that anyone could ever really do this.

Here's the maths...

Force = (m g cosθ b)/(a + b)

Where:
m = mass of the cow = 682 kgs
g = gravitational force = 9.81 m/s^2
θ = angle of the lever = 66 degrees
a = length of the lever above the centre of mass = 0.79m
b = length of the lever below the centre of mass = 0.79m

So,

Force = (682 x 9.81 x cos66^o x 0.79)/(0.79 + 0.79) = 1360N

1360 newtons of force requires 2.07 people to exert it, if you assume that each person weighs 67kgs and can push their own bodyweight.

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