Advertising agencies live by the aphorism that sex sells because it's one of the most basic, driving forces in our lives. Getting it, however, is a different matter altogether. In the animal kingdom, males and females of many species are known to trade resources for sex. Humans are no different. In the most basic terms, men can be said to offer protection to females, while females offer the promise of offspring to the males (we're talking caveman mentality here; let's leave the modern societal norms aside for a moment).

“I don’t know of another place in the universe that would have this intensity of light.” That’s a quote from physicist Karl Krushelnick of the University of Michigan. It might sound a bit bold, but he and his team believe they’ve developed a laser beam with record-smashing intensity. According to the scientists, the HERCULES laser is so powerful that it’s roughly equivalent to concentrating all the sunlight heading towards Earth on a single grain of sand.