Get flash to fully experience Pearltrees
21 May 2012 Last updated at 20:32 ET By Smitha Mundasad BBC Radio 4 Will we find new cures for the 21st Century? Half a century ago, in the drug industry's golden era, we were bestowed with countless pills to lower blood pressure, control blood sugar and get rid of infections. But today it costs about $1bn to bring a new medicine to market, a process that can take 15 years. The industry faces multiple crises as budgets are squeezed and tough scientific challenges loom.
The coolest thing I’ve seen today are the online “What’s your number?” calculators, presumably showing your approximate birth order among those alive today. Where do you fit into this story of human life? Check out these links to find out.
Lots has been written about the scientific method (and even I have written about it in a minor way in the past). The cycle of “make hypothesis, make predictions, test predictions, revise hypothesis, repeat” is the main thing people focus on when talking about how scientific progress happens. What’s less talked about is where the hypothesis comes from in the first place, which starts with someone (maybe you, dear reader) noticing something that needs to be explained. This is harder than it may sound, because in order to see something that needs to be explained, you need to be able to see past the existing explanations. You need to notice that what the textbook says should happen isn’t quite correct, instead of falling prey to the temptation to edit what you’re seeing to match what you expected to see.
The question of how a genotype (the arrangement of letters in DNA) maps to a phenotype (the shape and behavior of an organism) can be examined at many levels. On the one hand, we’d like to know how small differences in DNA sequence determine differences between individual humans, such as susceptibility to disease, height, IQ, maybe musical talent… the list is long. On the other hand, we’d like to know which DNA differences determine the crucial differences between species. What makes the beak short or long or pointy , what makes the neck short or long, what determines the size of the average member of the species?
We launched Google PowerMeter as a free energy monitoring tool to raise awareness about the importance of giving people access to their energy information. PowerMeter included key features like visualizations of your energy usage, the ability share information with others, and personalized recommendations to save energy.
Photo: tonx (flickr) How many times could you recycle a single sheet of paper before the fibers got too short and weak to hold together? You’ve seen the recycling logo, three arrows pointing around in an endless loop. This is a little misleading though, because you just can’t recycle the same piece of paper endlessly.
In 8 Months, Humanity Exhausted Earth's Budget for the Year August 22 was Earth Overshoot Day, marking the date when humanity has exhausted nature’s budget for the year. We are now operating in overdraft.
Sources d'énergie des réseaux de chaleur