Packing for a Long Trip to Mars - NASA's Space Place :: Home

Packing for a Long Trip to Mars - NASA's Space Place :: Home

4 Pages · 2002 · 274 KB · English

on “unearthly” ground—the moon, that is. It took only a few days to get to the moon, so the Apollo crewmates are planning for a trip to Mars. Assume

Packing for a Long Trip to Mars - NASA's Space Place :: Home free download

Originally published in The Technology Teacher, December 2001, by the International Technology Education Association 1 It’s been over 25 years since humans set foot on “unearthly” ground—the moon, that is. It took only a few days to get to the moon, so the Apollo astronauts didn’t have time to get bored. Our next destination in the human exploration of space will probably be Mars. Although we don’t yet have any definite plans for getting there, many people are busy working on the many problems that will have to be solved to accomplish this very difficult goal. The main challenge is that Mars is much farther away than the moon. Mars is the fourth planet from the Sun, and Earth is the third planet from the Sun. It takes Earth about 365 days to make one orbit around the Sun (one Earth year). It takes Mars 687 Earth days to make its journey around the Sun. So to get to Mars, we blast off from Earth going in the same direction as Earth and Mars are both traveling around the Sun, and byadding a little speed using the spacecraft’s engines, we eventually match up with Mars’orbit and catch up to Mars itself. If we don’t care about gas mileage, we can really step on it and get there in six months! A more fuel-efficient trip takes about 11 months. So, after a six-month journey, you land on Mars and have to stay at least 19 months, until Mars and Earth approach their closest positions again before you take off for the six-month journey home. You will be gone a total of about 2-1/2 years! This is a long time to be cooped up in a spaceship or in a Mars habitat with a few other crewmates! How would you pass the time? And how would you plan for all the crewmates to get along together? Plan Ahead! Plan Ahead!Plan Ahead! Plan Ahead! Plan Ahead! Imagine you and

------------- Read More -------------

Download packing-for-a-long-trip-to-mars-nasa-s-space-place-home.pdf

Packing for a Long Trip to Mars - NASA's Space Place :: Home related documents

Truth IS: Menger's Glowing Saucers

16 Pages · 2017 · 100 KB · English

persuasion: experience. He knows that his photographs might not reverse the . Flying Saucer, lack the experiential power of Menger's.14 Although the craft is blurry and the background empty, Adamski's Venusian Flying Saucer . The sensory invitation is key. Indeed, for Menger and Marla Baxter, the.

Pharmacotherapy in Pediatric Neurogenic Bladder Intravesical Botulinum Toxin Type A

7 Pages · 2014 · 1.16 MB · English

When the neurogenic bladder is refractory to anticholinergics, botulinum toxin type A is used as an alternative. The neurotoxin of Action, Indications, effects, administration and presentations of the Botulinum Neurotoxin Type A in pediatric patients. Also, . is also used to treat spasticity. In t

REASON FOR THIS TRANSMITTAL [ ] Federal Law or Regulation Change

3 Pages · 2013 · 107 KB · English

Federal Law or Regulation Change [ ] Court Order Page Two The ACF is pending a final determination of the removed for the current foster care episode.

Coversheet for Thesis in Sussex Research Online

223 Pages · 2014 · 2.21 MB · English

falls to the national authorities, under the supervision of the Committee of Ministers, to take, retroactively if appropriate … the necessary remedial measures in .. Andrášik and Others v.Slovakia (2002) ECHR 2002-IX;. Icyer v Turkey,Judgment of 9 February 2006, (unreported). 163 Charzyński v.

From Safety Cases to Security Cases

15 Pages · 2016 · 388 KB · English

Their paper explains how they create a modular case for this system, and notes that the combination of Law while security deals with Satan's Law. Safety is mostly concerned with the . One tool for managing complexity in assurance is modular safety cases (Kelly. 2005). For example, if there is an 

2013 PPS Final Rule Summary - Iowa Alliance in Home Care Home Page

4 Pages · 2012 · 190 KB · English

2013 PPS Final Rule Summary reduction in the MBI under the health care reform law, recalibrate all the HHRG weights in order to achieve budget neutrality.

Motivating Students - CETLA | Center for Excellence in Teaching

11 Pages · 2008 · 74 KB · English

Motivating Students." In R. J. Menges and M. D. Svinicki (eds.), College Teaching: From Theory to Practice. New Directions in Teaching and Learning, no. 45.

Polyspectral Signal Analysis Techniques For Condition Based Maintenance of Helicopter Drive ...

118 Pages · 2014 · 2.15 MB · English

of polyspectral signal processing techniques for condition based maintenance of crit- ical components in the AH-64D helicopter tail rotor drive train system. Currently available vibration-monitoring tools are mostly built based on auto- and cross-power spectral analysis which have limited performan

10 Chapter 10 Procedures for the Review of Telecommunication

20 Pages · 2009 · 336 KB ·

IRAC in the management of radio spectrum resources for the satisfaction of federal of Science and Technology Policy or his designee shall advise and assist the and its associated earth stations for provision of meteorological information; . request spectrum support in accordance with Chapter 10.

Bacteriophages for Plant Disease Control

20 Pages · 2008 · 254 KB · English

was used for controlling tobacco bacterial wilt, where bacteriophages were applied together with a phage-sensitive avirulent strain of the pathogen Ralstonia solanacearum to control the disease (94). EFFECT OF PHAGE. DURABILITY AND IN VIVO. MULTIPLICATION ABILITY. ON DISEASE CONTROL.