- Next-Generation Microshutter Array Technology
NASA technologists have hurdled a number of significant challenges in their quest to improve a revolutionary observing technology originally created for the James Webb Space Telescope. This image shows a close-up view of the next-generation microshutter arrays -- designed to accommodate the needs of future observatories -- during the fabrication process. Determined to make the Webb telescope's microshutter technology more broadly available, a team of technologists at NASA's Goddard Space Flight Center spent the past four years experimenting with techniques to advance this capability. One of the first things the team did was eliminate the magnet that sweeps over the shutter arrays to activate them, replacing it with electrostatic actuation. Just as significant is the voltage needed to actuate the arrays. By last year, the team had achieved a major milestone by activating the shutters with just 30 volts. The team used atomic layer deposition, a state-of-the-art fabrication technology, to fully insulate the tiny space between the electrodes to eliminate potential electrical crosstalk that could interfere with the arrays’ operation. They also applied a very thin anti-stiction coating to prevent the shutters from sticking when opened. > Revolutionary Microshutter Technology Hurdles Significant Challenges Image Credit: NASA/Bill Hrybyk
Category Archives: Politics
There seems to be a lot going on in the world recently. We could spend hours talking about the Bergdahl swap, or Hillary’s comments regarding domestic terrorists, or Obama’s non-comments about anything meaningful. What does Cantor’s loss in the Virginia … Continue reading
It has been 34 years since the fall of the US Embassy in Tehran. While that is an event that many of us have placed in the dustbins of history, we received a reminder of the event as “tens of … Continue reading
Here is an approach for you. WRITTEN BY A 21 YEAR OLD FEMALE. PUT ME IN CHARGE . . . Put me in charge of food stamps. I’d get rid of Lone Star cards; no cash for Ding Dongs or … Continue reading
The events of 9/11/01 weigh on everyone’s mind today, as well they should. As time passes those memories will fade but, with the technology of the 21rst century and the 24 hour news cycle we will always be reminded of … Continue reading
A reminder piece out of Fred Thompson’s new organization.
Been a busy few weeks here but I thought I would weigh in on a political topic for a moment. Last week Margaret Thatcher passed away. A historical figure with a strength and courage the likes of which Britain had not seen … Continue reading
Over the last few years our society has spent a fair bit of time talking about “The Law of Unintended Consequences“. While this phrase dates back to the 18th century (or earlier) it has really become an adage for describing … Continue reading
Here is a nice little monologue piece about recent events. It is a good story, a little long but it is worth it to listen and watch. Make sure to stay tuned until at least the 7:30 mark, it is … Continue reading
POTUS – Shakespeare Go check this link from Weerd World for an interesting take on POTUS’ lecture earlier this week. My Thoughts on the Inauguration Speech | Weerd World.
I had been trying to figure out a tasteful way to bring up this historical point. It seems Barron has already managed it, so I direct you to: Some Historical Context… – The Minuteman.