Vertical-axis Wind Turbines (VAWT) Are An Alternative To Traditional Wind Turbine Designs. Unlike Their

Vertical-axis wind turbines (VAWT) are an alternative to traditional wind turbine designs. Unlike their more common cousins, VAWTs rotate about a vertical axis and are omni-directional, meaning that they do not have to be pointed into the wind to produce power. While their size allows VAWTs to be packed much closer to one another than traditional turbines, a clear understanding of the flow around the turbines is needed in order to place the turbines for effective and efficient operation. The images above show the complicated and turbulent wake of a three-bladed VAWT when stationary (top) or rotating (bottom). The flow is visualized using a gravity-driven soap film (flowing left to right in the images) pierced by a model VAWT (seen at the left). The wakes contain many scales from simple, periodically-shed vortices off a blade to very large-scale vortical structures forming downstream of the turbine. This work originally appeared as a poster in the Gallery of Fluid Motion at the 2014 APS DFD Annual Meeting. (Image credit: D. Araya and J. Dabiri)

Femslash Feb Day 18 - Safe - Sunset Shimmer/Sci-Twi

OOPH MY BEST HUMAN HORSE GIRLFRIENDS

This was a request from @techstarz! Happy birthday!!!

Brief Summary: Sunset calms Twilight down after a nightmare.

Word Count: 345

I’m still accepting ships for femslash feb!!! Send me your fave fem pairs and I’ll write you a fic sometime this month!!

Keep reading

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techstarz

10 years ago

Build a Time Machine. Problem Solved ; )

This Has Been A Very Informative Powerpoint.

This has been a very informative powerpoint.

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techstarz

10 years ago

The paws that refreashes =^_^=

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techstarz

7 years ago

Save the Kitties 😸😸

I always see the dog choking info on here, so here’s what to do if a kitty is choking

Save your kitties, we all know they eat everything anyway.

http://www.wikihow.com/Save-a-Choking-Cat

http://www.wikihow.com/Perform-CPR-on-a-Cat

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techstarz

10 years ago

Photo http://bit.ly/naviineko http://ift.tt/1snlAdV - Follow me http://ift.tt/Roy1qi

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techstarz

11 years ago

Fight Back

Last month Tumblr took a decisive step toward transparency, and today we’re asking that our government do the same. We’re standing with our colleagues from across the web to demand transparency and accountability around laws concerning privacy.

Today is “The Day We Fight Back” against unfettered surveillance. We hope you’ll join us.

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techstarz

10 years ago

1...2...3...RED LIGHT