Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

rockets !!

No description
by

parsa lalianpour

on 19 May 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of rockets !!

Why?!?!
By: Parsa Lalianpour
Fuel tank
Oxidizer tank
How does it help?
What are the harms?
Gasoline
Ozone
Aldehyde
Carbon Monoxide
Carbon Dioxide
toxic!
Hydrocarbons
toxic!
toxic!
toxic!
global
warming
Hydrazine
So reactive, no oxidiser needed
human respiratory stress
and damages many plants
gasoline consist of over 250 diverse hydrocarbons
Many of these are toxic
Carbon monoxide is a poisonous gas produced by incomplete combustion. Gasoline rockets have incomplete combustion problems
is non-toxic,
but contributes to the greenhouse effect
gives the ability to stop and restart the motor
extremely toxic!
Breathing it can cause dizziness.

it can be absorbed through skin, which will cause serious lung and kidney problems.
Gases released :
Severe over-exposure can result in death
what has science done?
new types of fuel
liquid hydrogen+liquid oxygen=100% water vapor!
No toxic, or harmful gasses.
The most powerful fuel ever used
The lightest fuel ever used
Weight
fuel
materials
Has to be strong enough to hold the rocket together,
Be as light as possible
Early rockets:
New rockets
-used aluminum,
very light
very powerful
one of the only metals known to get stronger (not brittle) when exposed to low temperatures
-alloy of titanium, aluminum and vanadium
-carbon fiber
much lighter than aluminum
stronger than aluminum
space shuttle is mostly made with these two
effects on the society
Political
launching a rocket needs lots of time, technology and money. so launching it successfully is a very big achievement, and has a very big impact on the politics of a country
The new fuels and materials introduced make it easier and cheaper to make rockets, and allow more launches.
more countries can make rockets, and start their own experiments
Moral, Environmental
science has helped rockets get lighter,
and with less pollution
these two factors effect the environment, and morality, because the new rockets are now more environmentally friendly, which reduces acid rain, global warming, death, etc.
This also affects morality because its not right to do all the harms to the environment just to launch a rocket. But new rockets don't harm as much, making them better .
Thanks for watching! :)
http://en.wikipedia.org/wiki/Rocket_engine
Bibliography
wikipedia. Liquid rocket propellants. 28 february 2013. 3 april 2013 <http://en.wikipedia.org/wiki/Liquid_rocket_propellants>.
—. Rocket engine. 8 april 2013. 20 march 2013 <http://en.wikipedia.org/wiki/Rocket_engine>.
—. Rocket propellant. 25 march 2013. 25 march 2013 <http://en.wikipedia.org/wiki/Rocket_propellant>.
adams, george. Re: How much pollution does each space launch produce? 31 october 2000. 27 march 2013 <http://www.madsci.org/posts/archives/2000-10/973014746.Es.r.html>.
Astroprof . Hydrazine. 16 february 2008. 25 march 2013 <http://astroprofspage.com/archives/1516>.
candian renewable fuels Association. ENVIRONMENTAL EFFECTS OF ETHANOL AND GASOLINE. 12 september 2000 . 13 april 2013 <http://www.sentex.net/~crfa/ethaenv1.html>.
foley, sean. Hydrazine. 1 july 2009. 2 april 2013 <http://toxipedia.org/display/toxipedia/Hydrazine>.
JESSA, TEGA. Liquid Fuel Rocket. 21 july 2009. 20 march 2013 <http://www.universetoday.com/34656/liquid-fuel-rocket/>.
Joe. threshold. 1988. 30 march 2013 <http://www.pwrengineering.com/articles/turbopump.htm>.
Peak7000. What is the space shuttle made of? 27 march 2013 <http://wiki.answers.com/Q/What_is_the_space_shuttle_made_of>.
Tjohn6041. Does burning rocket fuel pollute and why? 30 march 2013 <http://wiki.answers.com/Q/Does_burning_rocket_fuel_pollute_and_why>.
Full transcript