Blogroll Review: Flash, Reforestation, ED

by Frank Ling

Memory Revolution

Here’s another example of nanotechnology contributing to energy efficiency. Through improved ability to manufacture memory, flash is starting to replace traditional hard drive applications.

Hank Green at EcoGeek writes:

“There’s a lot of reasons to herald the dawn of flash-based hard drives. They’re faster, smaller, silent and, of course, tremendously more energy efficient. The difference between a traditional hard drive and a flash drive is roughly the difference between an incandescent light and a compact fluorescent light.”

Still, isn’t the brain the most energy efficient means of storing information or is it DNA?

Forest Better than Biofuels?

Just as biofuels are becoming accepted, more evidence is coming in that their overall effects on emissions and the environment is negative. One recent study shows that reforestation is much more effective at offsetting CO2 than biofuel production.

Jeremy Elton Jacquot writes in Treehuggger:

“Renton Righelato of the World Land Trust and Dominick Spracklen of the University of Leeds estimhttp://www.blogger.com/img/gl.link.gifated that the initial cutting down of forests to plant more food crops, like corn and sugarcane, would release as much as 100 – 200 tons of carbon per hectare. “

Endocrine Disruption

Back when I was a chemist, I used to play around with exotic compounds like phthalates, which are used in plastics and cosmetics. Though touted as safe in commercial products, they are also recognized as being absorbed into humans, causing endocrine disruptions.

In this week’s Gristmill, Theo Colborn writes:

“Endocrine disruption should be right at the top of the list of most critical technological disasters facing the world today, up with climate change. With little notice, vast volumes and combinations of synthetic chemicals have settled in every environment in the world, including the womb environment.”

No more sniffing chemicals for me! 🙂

Frank Ling is a postdoctoral fellow at the Renewable and Appropriate Energy Laboratory (RAEL) at UC Berkeley. He is also a producer of the Berkeley Groks Science Show.

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