Imagine playing a simple game in a virtual-reality setting. You move an avatar around a room trying to entice your opponent’s avatar to move closer to you when you are in certain spot. Meanwhile, 12 km away, cameras track your opponent’s movements around an arena that also contains a robotic representation of you. The cameras are telling your opponent’s avatar where to move in your virtual reality setting based on where they move in their actual setting.
Your goal is to score the most points by moving the virtual you into proximity with your opponent’s avatar while you are both at a certain location within the virtual room. If you succeed, you score a point. If you and your opponent get too close anywhere else in the room, your opponent scores a point. Your opponent, however, is not terribly interested in points; your opponent wants to get close to the robotic you because it has snacks. Your opponent is a rat, Continue reading “Rats Avatars: A New Twist On Virtual Reality”
My daughter has been actively planning her birthday for about three weeks now (and she still has almost two months to wait). At the top of her wish list this year? Hand sanitizer. As my kids headed back to school this week, I noticed that one of the most popular pieces of backpack “bling” among her little friends was little bottles of: you guessed it, hand sanitizer. In bright colored silicone covers, with yummy sounding scents, little bottles of hand sanitizer bounced along on the backpacks of a lot of the youngsters walking into the school.
My seven year old daughter has a necklace I made her that says “Dandelion Girl” . I made it for her because she remains enamored with these cheerful yellow flowers despite other people’s best attempts to disillusion her. To her they are not weeds, but pretty flowers that turn to a white puff ball that a nature-made toy. Imagine my surprise when I came across an article referring to the genetics of “Dandelion Children”.
This week science lost a celebrity of the most unusual sort. Known to people around the world as Lonesome George, he was recognized as the last living member of his subspecies, the Pinta giant tortoise (Geochelone abingdoni) one of the giant tortoises of the Galapagos Islands. These slow and steady creatures hold a special place in science history. Observing differences between the giant tortoise populations of different Galapagos Islands helped a young Charles Darwin develop his theory of evolution. 
The study, made available online ahead of publication (1), found that from a very early age, people associate sweeten drinks with salty and higher fat foods such as pizza and French fries (or chips). Perhaps partly as a result of this association, young people (ages 19–23 years) viewed unfavorably the pairing of a sweetened drink with raw or cooked vegetables. The test subjects showed strong reactions (either positive or negative) to the pairing of sweetened drinks with certain foods. In contrast, water didn’t evoke strong any reactions indicating that it was viewed as reasonable complement to most food. 
The worst part was I knew I had only myself to blame. 
Forgetting. Forgetting your address; your spouse; your children; your friends; your life. It is something that none of us want to think about, but it hangs over some of us like a specter. Can’t remember if you fed the cat? Where you put your car keys? Did you forget to pack your lunch or return a phone call? Maybe you are trying to do too many things at once, or maybe you are tired. There are lots of perfectly normal reasons why we all forget things from time to time, but every time I forget something there is a nagging voice in my head saying, “Maybe it is something else.” 
As scientists, we are supposed to be objective and unbiased. We are trained to use sound scientific methods and experimental design to let the data speak for itself. By doing this, we remove our preconceptions and biases from the equation, because as human beings, we are both subjective and biased. Early this summer, there was quite a buzz about an article published in PLoS Biology (1) that debunked a paper (and prize winning book) by Stephen Jay Gould (1941–2002) that many of us probably read at some point in our academic training as scientists. 