11 cheap gifts guaranteed to impress science geeks Science comes up with a lot of awesome stuff, and you don't need a Ph.D, a secret lab, or government funding to get your hands on some of the coolest discoveries. We've got a list of 11 mostly affordable gifts that are guaranteed to blow your mind, whether or not you're a science geek. Click on any image to see it enlarged. 1. Aerogel Also known as frozen smoke, Aerogel is the world's lowest density solid, clocking in at 96% air. Aerogel isn't just neat, it's useful. Price: $35 2. Inside these sealed glass balls live shrimp, algae, and bacteria, all swimming around in filtered seawater. EcoSpheres came out of research looking at ways to develop self-contained ecosystems for long duration space travel. Price: $80 3. NASA has been trying to figure out how to get a sample of rock back from Mars for a while now. Every once in a while, a meteorite smashes into Mars hard enough to eject some rocks out into orbit around the sun. Price: $70+ 4. Price: $150 5. Price: $110 6. Price: $80 7. Price: $15 8.
Classroom: Five Essential Principles of Interaction Design - Part 1 - Five Essential Principles of Interaction Design Community Translation Episode available in 1 languages Available Translations: Join the Community Translation Project Thanks for your interest in translating this episode! To get started, please join the Community Translation Project. Please Confirm Your Interest Thanks for your interest in adding translations to this episode! An error occurred while processing your request. Another translator has already started to translate this episode. Thanks for Participating! This episode has been assigned to you and you can expect an e-mail shortly containing all the information you need to get started. About This Episode Understand what interaction design is and how the five essential principals of interaction design could help you make better interaction design decisions.
Shops and Cars Burn in Antipolice Riot in London 3:55 p.m. | Updated More violence rocked parts of of London Sunday night, a day after demonstrators looted shops and set fire to cars and buildings. This time, the crowds in the Enfield area were met with a strong police reaction, according to initial reports on social media. Paul Lewis, a journalist for The Guardian, posted observations of erupting violence in the London borough of Enfield Twitter at around 8:45 p.m local time. The events started Saturday night as hundreds of rioters and looters set buildings on fire, launched fireworks at police and ran unchallenged through the streets with armfuls of stolen goods. The riots began as a peaceful protest against the death of Mark Duggan, a 29-year-old man and father of four, who was killed Thursday in Tottenham by officers from the Trident unit of the Metropolitan Police, which investigates gun crime, according to the Independent Police Complaints Commission, an external government body which regulates the police. Mr.