Quest Chat with Joe Delai
Test Project Engineer - KSC
May 21, 2002
Tue May 21 17:59:58 2002
- 307 - 19:48:08 ]
This chatroom has been created to accept your questions for the May 21 chat
Delai, concerning NASA technology spin-offs. Questions may be placed
here at any time. They will be held in a queue until the time of the webcast
and will not be visible until that time. Please do not repeat your questions.
- 309 - 19:49:50 ]
Remember to read Joe's bio at http://quest.arc.nasa.gov/people/bios/space/delai.html
before attending so you can ask appropriate questions. If for some reason
you cannot join us for the live chat, you can input your question ahead
of time, and then read the archive later to see if your question was answered.
It's not as cool as being there live, but it is very helpful when there
are scheduling conflicts.
- 311 - 14:35:01 ]
RE: Hi i would like to schedule an interview for a
school research report.
Hi! If you can't attend the chat live, you can always go ahead and put
some questions in ahead of time to be answered during the chat. Then you
can check back later for your answers. Your questions are answered by
a real NASA expert & his background information can be found in an online
bio. This leaves the chat for cooler questions about his work. Check with
your teacher, but this could be an excellent way to get your interview
[ Joe - 329 - 17:00:22
Welcome Joe! We have lots of questions for you today!
[ Joe - 335 - 17:02:45
RE: Stanley/How is the pacemaker
Stanley, it would be powered by a self contained/small like long-life
[ Joe - 338 - 17:04:50
besides studying bones, what other medical benefits will come from experiments
Jackie, a lot can come from space. Besides bones, we can perform cancer
research. Pharmaceutical research is another one. There is an advantage
when you can eliminate gravity from the experiment.
[ Joe - 341 - 17:05:46
RE: Mya What part of your
job do you like best?
Mya, good question. I enjoy working with all the various countries and
I am proud to be part of a team that is dedicated to making life better
for us on Earth.
- 342 - 17:06:28 ]
RE: Moon Debate Class/ hi
I am just wanted to ask you some questions, my class and I are debating
whether we really went to the moon or not, could you please send us some
information that we really did?
Although, Joe can answer, too -- one place to explore this is at: http://science.nasa.gov/headlines/y2001/ast23feb_2.htm.
[ Joe - 343 - 17:06:49
RE: Tim/5thgrade/LA What
are the truss sections used for? What are made of? How heavy are they?
Tim, most are made from a high strength/low weight aluminum material.
The average weight of a truss is about 20,000 lbs.
[ Joe - 344 - 17:08:06
RE: how does a space shuttle
The space shuttle works by mixing hydrogen and oxygen. Then you ignite
the fuel and you have a lot of thrust!!
[ Joe - 345 - 17:08:40
[ Joe - 351 - 17:09:39
RE: JOE HOW MUCH WEIGHT VALASITY
DOES IT TAKE TO GET A ROCKET SHIP OFF THE GROUND.
In order to reach our orbit, we have to achieve about 17,000 MPH.
RE: Moon Debate Class/ hi I
am just wanted to ask you some questions, my class and I are debating whether
we really went to the moon or not, could you please send us some information
that we really did?
We did go to the moon, but you can look at http://www.nasa.gov/
and find a lot of info in the education center.
[ Joe - 352 - 17:11:12
RE: How much has NASA Space
technology been improved since the 1900's?
Most of the work we are performing today, the benefits are long term.
We are now enjoying the benefits from the Apollo/early shuttle days. The
ISS, our kids and their kids will enjoy the benefits.
[ Joe - 353 - 17:12:08
RE: Where did you go to colledge
I went to college at Embry Riddle Aeronautical University and the University
of Central Florida.
[ Joe - 354 - 17:13:53
RE: Moon Debate Class/ 1.
How do you benefit the government? 2. How does this space program help
out people? 3. How does it help the scientific gain?
Moon class, good questions. Most of the research we are performing on
the ISS is long term. Remember, research is done in the present day to
benefit us in the future. I feel it is the government's obligation to
promote and perform research -- then at a certain point, various companies
can take over.
[ Joe - 357 - 17:14:43
RE: Moon Debate Class/ 8.
Do you pollute the environment?
Moon class, the shuttle does not pollute the environment and the ISS does
[ Joe - 358 - 17:15:48
RE: Jessie I missed your
webcast, but wanted to know how big is the ISS? How big will it be when
it is finished? When will it be finished?
Jessie, the ISS will weigh about 1 million lbs and be about 200 X 300
feet. About the size of two football fields.
[ Joe - 359 - 17:16:50
RE: The X-38 project was cancelled
sometime back. Don't you think it'll hamper the ISS project? After all
we do need CRVs.
The Russians will have two CRV's but I hope that this project will come
back because I feel it will help us in developing the next generation
of space vehicles.
[ Joe - 363 - 17:18:38
RE: What were your favorite
subjects in school including college? / Evan
Evan, My favorite subjects were math, physics, and chemistry.
[ Joe - 364 - 17:19:27
RE: What part of the space
station when it is finished will be your favorite piece or part? Why?
My favorite piece will always be the docking port on station because that
was the first piece I worked on.
[ Joe - 365 - 17:20:26
RE: During the webcast you
talked about some hair gel stuff made only in spoace what is it made
of & what do you use for in space? Do you make it there & bring it back
to Earth to use? For what?
The aerogel is made of a type of polymer and can be used for insulation
[ Joe - 371 - 17:21:51
RE: Are you still in the military,
or do you work as a Nasa employee? Is NASA the part of the military?
NASA is a civilian agency. I am no longer in the military.
[ Joe - 372 - 17:22:51
RE: Are the invisible braces
you talked about made of composites? What? Please tell me as much as you
can, as I will be getting braces soon Margarite
Have you ever seen the invisible braces on TV? Also, the ones you get
at the dentists office, is a plastic polymer. They are all like that these
[ Joe - 373 - 17:23:30
RE: On Mars is there gravity?
If i flew to mars landed got out of the space shuttle would i float? If
i went do the south pole of mars would i fall off?
The gravity on Mars is a lot less, but there is some -- about 1/3 of Earth's
[ Joe - 374 - 17:24:25
RE: Allan Why is crstal
growth so important in space? What is being learned from this?
Allan, in space we can grow crystals faster and better then we can on
earth. This will save time and money.
[ Joe - 375 - 17:25:50
RE: In what ways have the
advancements in technology, and especially computers helped to increase
the amounts of knowledge that we have as humans on the space and the solar
Today we can see farther and we know more then ever. The more we know
and the more we find out, future generations will only benefit from this
and will enable them to do more.
[ Joe - 381 - 17:27:04
RE: Do you know about the
suit made for the bubble boy who couldnāt go outside like everyone else?
I have seen this movie, a long time ago.
[ Joe - 383 - 17:29:14
RE: Dalton/How does a solar
array make power?
Dalton, the panels take the energy/heat from the sun and convert it into
usable electricity. Electrical power is the most critical resource for
the International Space Station (ISS) because it allows the crew to live
comfortably, to safely operate the station, and to perform scientific
experiments. So, whether it is used to power the life support system,
run a furnace that makes crystals, manage a computerized data network,
or operate a centrifuge, electricity is essential. Since the only readily
available source of energy for spacecraft is sunlight, NASA Glenn Research
Center has pioneered, and continues to develop, technologies to efficiently
convert solar energy to electrical power. One method of harnessing this
energy, called photovoltaics,
uses purified silicon solar cells to directly convert light to electricity.
Large numbers of cells are assembled in arrays to produce high power levels.
[ Joe - 384 - 17:29:59
RE: Moon Debate Class/ 7.
How much does NASA spend in a year?
moon class, we are one of the lowest federal agencies for budget, but
yet I think we produce the most.
- 385 - 17:30:26 ]
RE: What are the requirements
and/or prerequisites to be an astronaut followed by education and classes
needed? Are you required to have 20/20 as well? if so, is Lasik surgery
You can find out all you need to know about becoming an astronaut at --
[ Joe - 386 - 17:31:00
RE: Moon Debate Class/ ? 9.
How do you help with space travel? 10. Why do you explore space
Moon class, I feel that we need to travel to various bodies in space and
to determine if an element or compound exists that does not exist on Earth
but it could help us in some way.
[ Joe - 391 - 17:35:16
Can you me about the background of nomex & velcro? Didnāt NASA invent
Ms Carlson, NASA "teamed" with various contractors to develop a suit that
was resistant to fire. One of the spinoffs was Nomex.
[ Joe - 395 - 17:38:15
RE: Is there relly live on
One can only answer this after we have studied more and have been there.
[ Joe - 396 - 17:38:36
RE: What life science discoveries
have resulted from space study?
For instance, studies of the Sun's effects on Earth will improve forecasts
of events ranging from the temporary disruption of telecommunications
to the long-term alterations in climate. The practical applications here
on Earth gained from space science on the International Space Station
will be invaluable. This unique venue offers the opportunity to pursue
investigations into solar studies, cosmic rays, the physical and chemical
composition of the space environment, as well as the presence of dark
matter in the universe.
[ Joe - 398 - 17:40:43
RE: How did NASA help with
the pacemaker & how do they use it? Do astronauts go into space with pacemakers?
In the fundamental field of biology, the scientists of the International
Space Station will assist in answering some very basic scientific questions
in a different environment. For example, what is the role of gravity in
the processes of biological evolution? Also, how does acute or chronic
exposure to altered gravity and other space-related factors affect normal
physiology, metabolism and function of mature organisms? These are just
two of a multitude of possible theories and hypotheses in the fields of
biological research that the astronauts and cosmonauts could help answer.
[ Joe - 399 - 17:41:15
RE: What are composites and
what are they used for?
Composites are light weight, but yet strong material.
[ Joe - 400 - 17:42:04
RE: My name is Joe to. I was
wondering what it's like in NASA. So write back a s a p im in computer
for 5 more minites
Working for NASA is great. We do many different things and I enjoy working
on a program that will benefit mankind for many years.
[ Joe - 403 - 17:45:43
RE: Mya did NASA develop
solar arrays? what other things are they used on (other than iss) in space
& on earth?
Mya, NASA helps to make them more efficient so we can us them on earth
for many applications.
[ Joe - 405 - 17:47:04
RE: Paula/9th What types
of computer technology has NASA developed that we all are using on a daily
Many of the new engineering technologies being developed on the International
Space Station will lead to improved commercial space communication systems
for personal phone, computer and video use. Also, they will lead to improvements
to energy use efficiencies, air and water quality capabilities in private
and commercial buildings, and to improvements in automated maintenance
functions and new lower-cost building construction techniques. Advancements
in space technology will significantly enhance the quality of life on
Earth and will help make the utilization and exploration of space safer
and more affordable.
- 407 - 17:49:02 ]
We have about 5 minutes left for the chat today. Joe is finishing up the
last of the questions.
[ Joe - 408 - 17:49:43
RE: Anson/grade5/How does
studying bones in space help anyone here on Earth? Is it to make people
Anson, if we want to travel in space we have to slow down various reactions
to the body. One is the loss of bone mass. If we can do this for long
term space travel, then in turn this will benefit us on Earth.
[ Joe - 410 - 17:50:59
RE: I realy love science!
I will never stop taking it! It's realy awesome! There are many things
to enjoy, such as astronomy, physics/motion, chemistry, the environment,
and also the weather. I will gladly take it again the year after Next
No matter what you do, remember always to enjoy it!!! If you like something
like science or history then your job will be that much better!
- 412 - 17:52:53 ]
As Joe finishes answering the last question -- I want to thank you all
for joining us today! Great questions! I know summer is right around the
corner -- so everyone have a great summer :-)
[ Joe - 411 - 17:51:59
RE: Moon Debate Class/ 4.
How do you help space technology? 5. What do you do to save natural resources?
moon class, The ability to understand the Earth and its environmental
response to natural and human-induced variations such as air quality,
climate, land use, food production as well as ocean and fresh water health
are some of the benefits expected from Earth science research aboard the
International Space Station. The astronauts onboard, their work and the
instruments used will provide a "window on the world", enabling scientists
to monitor and understand the factors affecting quality of life. Aboard
the International Space Station, the field of fundamental physics has
a grand opportunity. Not only will the laws of quantum theory as they
pertain to mapping of the relic of quantum gravity --gravitational waves
generated from the Big Bang -- be tested, but the areas of high powered
physics will be able to develop new, more precise atomic clocks with the
combination of a new laser cooling technology and microgravity.
- 413 - 17:53:40 ]
Thanks for joining us today Joe and sharing your knowledge and expertise!
We look forward to chatting with you again :-)
[ Joe - 415 - 17:55:13
I, too, would like to thank everyone. I want everyone to remember:
Now with a permanent human presence in space aboard the International
Space Station, the practical benefits to mankind are almost infinite.
Not only will there be new advances in space technology, but there will
be a chance for all types of different scientific fields to have new theories
tested and experiments completed in microgravity.
- 416 - 17:55:32 ]
Have a great day all :-)