How Much Sunscreen Should I Wear?

How much sunscreen should I wear?. This simple question took David McCandless, a London-based author, writer and designer on a massive journey through the data, information myths and misinformation that surround our perception of sunscreen. He calling it the Sunscreen Smokescreen.

via www.informationisbeautiful.net

"Create your own interactive map - Get started now - ChartsBin.com"

Twilight Zones

This chart shows the relationship between the angular elevation of the sun relative to the horizon and levels of twilight. The values are for the 24 hours between 1pm BST 12th August 2010 and 1pm BST 13th August 2010, and for the location Brighton in East Sussex (50.8° N 0.1° W). In equatorial regions, night and day breaks very much more quickly. In Brighton on this late summer day, sunset to full darkness took 2 hours and 22 minutes. By comparison, in Singapore (near the equator) the process took 1 hour 11 minutes.

A full listing of data for the two nights Dominic Alves tried to photograph Perseid meteors is at the foot of this description.

via Dominic Alves

Hypergiant: VY Canis Majoris

VY Canis Majoris is a red hypergiant star located in the constellation Canis Major. At between 1800 and 2100 solar radii (approx 2.7 billion km), it is currently the largest known star in terms of relative size to our own sun (although not in terms of mass).

The size is beyond comprehension.

If you Canis replaced our own star, it would engulf everything up until Saturn.

It's width, as compared here, is just short of all the planets to Uranus.

It's BIG!

via www.flickr.com

Truth About Sun, Sunscreen, and Skin Cancer

Where did this summer go? Seriously. Even as we near the dog days of August, some of us still look pasty white -- on purpose. Yeah, we know a tan's a great accessory to a sundress, but cancer? We're not really into that. That's why we're serious about how we protect ourselves.

So check out these tips, spread on the sunblock, and enjoy that margarita guilt-free.

via www.lemondrop.com