How many of you watch TV, talk on a phone, or would like for your kids to be able to go to space in 30 years? With increasing amounts of space debris it is making it harder and harder for satellites and manned missions to orbit earth to continue to be feasible. This 1mm crack in a space shuttles windshield was created by a piece of space debris 100 microns in size. A ten-centimeter long piece of space trash can cause as much damage as twenty-five sticks of dynamite.(NASA) I am going to talk to you about how much there is, how it gets made, and what we can do about it.
Main points:
1. Thousands of rocket launches since the dawn of the Space Age in 1957 have left a growing amount of orbiting debris that may badly hamper future launches into space.
2. What is the space junk made up of.
3. What is being done about space debris.
4. What you can do about space debris.
Conclusion:
What can you do about all this space debris contact your local space program authority(NASA) and tell them you would like your children to someday possibly visit Mars or at the very least to be able to continue to watch TV. Once space is polluted it's too late and I wouldn't dare go up there.
Work Citied:
Tanner, Adam (2001) Expers Warn: Earth Orbit full of Space Junk. Retrieved
Broad, William(2007) NASA Forced to Steer Clear of Junk in Cluttered Space. Retrieved
http://www.nytimes.com/2007/07/31/science/space/31orbi.html?fta=y
3 comments:
Will Stanley
Persuasive Outline
Intro
I.) Attention Getter: All of us have done it.
II.) Thesis: I’m Will Stanley and today I’m here to talk to you about how much sleep we should be getting, what happens when we don’t get enough sleep, and most importantly, leave you with some tips to get a better night’s sleep.
Transition: To begin, I will compare how much sleep most of us are getting with how much sleep we should be getting.
Body
I.) How much sleep most of us get and how much we should be getting.
A.) How much sleep we need
1.) infants on average need 16 hours
2.) teenagers on average need 9-10
3.) adults on average need 7-8
B.) While most of us are in the 7-8 hour range
C.) Even though that is below the average
Transition: Now that I have told you that you need more sleep, I will tell you what happens when we don’t get enough sleep.
II.) effects of sleep deprivation
A.) effects of short term sleep deprivation (missing two hours)
1.) Reduced alertness
2.) Shortened attention span
3.) Slower than normal reaction time
4.) Poorer judgment
5.) Reduced awareness
6.) Reduced decision-making skills
7.) Poorer memory
8.) Reduced concentration
9.) Increased likelihood of moodiness and bad temper
10.) Loss of motivation
11.) Microsleep (brief periods of involuntary sleeping that range from a few seconds to a few minutes in duration).
Transition: That is what happens if you deprive yourself of a few hours of sleep, now I will tell you what could happen with continual sleep deprivation.
B.) long term sleep deprivation (sleep-deprivation.com)
1.) Increased risk of Cardiovascular disease
2.) clinical depression
3.) weakened immune system
4.) hallucinations
5.) hypertension
Transition: Now that you know what happens if you don’t get enough sleep, here are a few tips to help you do that.
III.) Tips for a good night’s sleep
A.) Set a schedule
B.) Exercise
C.) Avoid caffeine, nicotine, and alcohol
D.) Relax before bed
E.) Sleep until sunlight
F.) Don't lie in bed awake
G.) Control your room temperature
H.) See a doctor if your sleeping problem continues
Transition: You now know that most of us don’t get enough sleep, what happens when we don’t get sleep and a few ways to get a good night’s sleep.
Conclusion: Maybe next time instead of staying out with our friends a few more hours, watching more TV, playing more video games or finishing that mountain of homework, we will get to bed a little earlier and get a good night’s sleep.
Citations
"What is Sleep?". American Sleep Association. 10/29/07 http://www.sleepassociation.org/.
"Sleep Guide". University of Illinois Urbana Champaign. 10/31/07 http://www.mckinley.uiuc.edu/Handouts/sleep_guide.html.
"Sleep deprivation". Better Health Channel. 10/31/07 http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Sleep_deprivation?OpenDocument.
"Brain Basics: Understanding Sleep". National Institute of Neurological Disorders and Stroke. 10/30/07 http://www.ninds.nih.gov/disorders/brain_basics/understanding_sleep.htm.
Hitti, Miranda. "You May Sleep Less Than You Think". WebMD. 10/31/07 http://www.webmd.com/sleep-disorders/news/20071015/you-may-sleep-less-than-you-think.
"Sleep Deprivation". moreFocus on Health. 10/29/07 http://www.sleep-deprivation.com/articles/effects-of-sleep-deprivation/.
I thought this speech was very interesting! I agree that something has to be done with this growing problem.
good speech topic
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