Daily Archives: April 13, 2009

Bending Under Pressure Activity – Demonstration Video

While making spacewalks possible, pressure produces its own problems. An inflated spacesuit can be very difficult to bend. In essence, a spacesuit is a balloon with an astronaut inside. The rubber of the balloon keeps in oxygen that is delivered to the suit from pressurized oxygen tanks in the backpack. But, as pressure inside the balloon builds up, the balloon’s walls become stiff, making normal bending motions impossible. Lack of flexibility defeats the purpose of the spacewalk — mobility and the ability to do work in space. In this activity, students use balloons and rubber bands to demonstrate the pressure inside a spacesuit.

In addition to the lesson plan, a video of the lesson demonstration is now available online.
http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Bending_Under_Pressure.html

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Challenges of Spacewalking – Video Clips

Hear firsthand how astronauts have encountered their own challenges during EVAs (spacewalks). This six-part video series allows you, the viewer, to choose the correct “fix” for real problems astronauts faced while spacewalking. See if you have the right stuff to think quickly when things do not go as planned.

View the spacewalk videos at the following website:
http://www.nasa.gov/audience/foreducators/spacesuits/home/challenges_spacewalking_index.html

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NASA’s Hispanic Astronauts Fact Sheet

NASA selects astronauts from a diverse pool of applicants with a wide variety of backgrounds. From the thousands of applications received, only a few are chosen for the intensive Astronaut Candidate training program. Only 321 astronauts have been selected to date. This fact sheet lists those astronauts of Latin-American and/or Spanish descent. This fact sheet is available in English and Spanish.

Download the fact sheet today at the following link:
http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Hispanic_Astronauts.html

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OMSI Star Party – April 18, 2009

OMSI Star Party – Planet Parade (Portland Oregon)
April 18 starting at 7:30 pm

Join OMSI, the Rose City Astronomers and Vancouver Sidewalk Astronomers a free Star Party at both Rooster Rock State Park and L.L. “Stub” Stewart State Park! On April 18, starting at 7:30 pm, we will view two of the visible planets of the solar system in the mid-April night sky. For the first time ever, star parties will be held at two viewing locations on the same night. From beginners to experts of all ages, here’s your opportunity to view the stars and other celestial objects up close and personal through telescopes. Viewing highlights includes the planets Mercury and Saturn, deep sky objects including the Orion Nebula, Beehive star cluster and more!

To reach Rooster Rock State Park, take I-84 east of the Sandy River at exit 25. The park is located 22 miles east of Portland.

To reach L.L. “Stub” Stewart State Park, take US-26 west of Portland and turn right on OR-47. The park is located 23 miles west of Portland.

Both events start at 7:30 pm and is free with $3 parking per vehicle.
It is suggested that interested visitors call (503) 797-4610 on April 18 after 3:00 p.m. for possible weather-related cancellations.

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