Choosing what to see isn’t necessarily the hardest part of a night out at the movies. Sometimes the bigger question is, where do you sit? On the aisles for easy access to Twizzlers and Diet Coke refills? Or do you map out the closest fire exits and plant yourself there, just in case? Do you sit in the front row because you enjoy the feeling of being swallowed by the film? Or do you chose the middle? There’s a reason that people sit in the middle, I’m just not sure what it is.
Google is helping searchers get into the Christmas spirit by offering a sprinkling of snow on their computer monitor. When typing the words “let it snow” into the popular search engine, a flurry of snowflakes trickle down the screen, followed by frost. You can wipe away the frost by clicking the left button on your mouse as an ice scraper or pressing the “Defrost” button, which appears in place of the blue “Search” button.
Fire is a different beast in space than it is on the ground. When flames burn on Earth, heated gases rise from the fire, drawing oxygen in and pushing combustion products out. In microgravity, hot gases don’t rise. So an entirely different process, called molecular diffusion, drives flame behavior.