February 19, 1998
QuestChat with Ray Oyung
- 10 - 10:02:26 ]
Good Morning Ray! Good morning kids send your questions now for Ray!
[ Ray/Ames - 11
- 10:02:51 ]
Good morning all!
- 12 - 10:03:29 ]
Welcome Carl and Amanda!
[ Sarah/Greenmeadow - 6 - 09:59:17 ]
Does it matter if you travel east or west when you get jet lag?
[ Ray/Ames - 13
- 10:03:39 ]
I'll start with Sarah's question...which is a good one.
- 15 - 10:03:59 ]
[ Amanda/WhiteDeerHighSchool - 23 - 10:08:41
I don't actually know.
[ Ray/Ames - 17
- 10:04:59 ]
Sarah, The circadian rhythms that we each have tends to like longer days.
By going westbound, it extends the day and is much easier to adjust to
than flying eastbound.
[ Amanda/WhiteDeerHighSchool - 16 - 10:04:33
hi susan, i'm sorry that i have registered before for others and have
not attended, there was a mix up on the time zones
- 18 - 10:05:23 ]
Glad you're here! Speaking of time zone questions do you have a question
[ Ray/Ames - 21
- 10:07:54 ]
Have you taken any trips and noticed this with yourself or those you were
[ Sarah/Greenmeadow - 25 - 10:10:10 ]
Wen my family went to europe from California I was tired both ways!! but
my dad thought one way was better.
[ Ray/Ames - 24
- 10:10:03 ]
RE: [Carl/homeschooled] What kind of planes do you use in
Hi Carl, Most of the planes that we've used in our tests have been large
commercial jets...Boeing 767 and 747 type airplanes. We've also finished
a study in a corporate Gulfstream IV.
[ Ray/Ames - 26
- 10:12:53 ]
RE: [Amanda/WhiteDeerHighSchool] have you always wanted do
Hi Amanda, I've always had a eye on being up in the air. My dad would
take my brother and I to see airshows that were in town (sometimes here
at Moffett!) and also built small remote control model airplanes at home.
This along with encouragement to do things I wanted to do helped me along
the way and here I am.
[ Amanda/WhiteDeerHighSchool - 27 - 10:13:45
- 29 - 10:15:08 ]
[ Ray/Ames - 30
- 10:15:14 ]
RE: [Amanda/WhiteDeerHighSchool] can you tell any difference
when you enter a new time zone in the air?
Hard to tell changes in time zones while in the air. Since things are
happening physiologically, the perception of jetlag occurs after landing
when the body feels like it's daytime, but it's night time at the airport!
[ Ray/Ames - 32
- 10:18:01 ]
RE: [Sarah/Greenmeadow] Thanks Ray, What are circadian rhythms?
I always make me think of a cricket or something?
The circadian rhythm is a biological clock that helps us determine when
it's time to go to bed and time to wake up. It's dynamic and moves up
and down (like a sine wave) throughout the day. Have you ever felt tired
in the late afternoon around 3-5 p.m.? This is normal and is the circadian
rhythm at work.
[ Ray/Ames - 34
- 10:21:41 ]
RE: [Alex-Alex/homeschool] Sorry I'm late. I had some work
I wanted to get done. What country are you from? Have you been doing any
tests with the SR-71?
Hi Alex, I was born and raised in San Francisco. My father also grew up
here, but mom was born in Hong Kong. I haven't done any tests with the
- 36 - 10:24:30 ]
RE: [Amanda/WhiteDeerHighSchool] I'm sorry,
but I must leave because our lunch period is over. Thanks for all of the
information Ray and best wishes in all!
Bye Amanda, check the chat schedule we'll have some more chats soon!
[ Ray/Ames - 37
- 10:24:37 ]
RE: [Amanda/WhiteDeerHighSchool] Thanks again! How often
are you in the air a week approximately?
The studies dictate how often I'm flying. Our last field study took me
from Taipei, Taiwan to Auckland or Christchurch, New Zealand twice a week
for 6 weeks. We flew from 8p.m. (Taipei time) to 1:30p.m. the following
day (New Zealand time). Talking about jetlag!
[ Ray/Ames - 39
- 10:27:02 ]
RE: [Sarah/Greenmeadow] Does temperature affect pilot fatigue?
Hi Sarah, Temperature is an environmental factor which may cause fatigue.
There are not many studies that show to what extent though.
[ Ray/Ames - 40
- 10:28:01 ]
Bye Amanda. Nice chatting with you!
[ Ray/Ames - 44
- 10:32:33 ]
RE: [Alex-Alex/homeschool] On an EEG, when a person is going
at a speed of 1800 to 2010 mph what does the wave do? And why does it
Hi Alex, EEG stands for electroencephalography which really is a big word
for brain waves. These brain waves change with varying states of wake
and sleep. If I hooked you up with electrodes to measure your brain wave
activity, I would be able to tell if you were awake, asleep, in deep sleep,
in light sleep, or in REM (rapid eye movement or dreaming) sleep. No matter
how fast or slow someone is moving, these brain waves will still remain
- 45 - 10:34:32 ]
RE: [Alex-Alex/homeschool] I did not read all
your bioghrufy. Is this spelled right? What did you want to become at
Close Alex, biography.
[ Ray/Ames - 46
- 10:35:51 ]
RE: [Carl/homeschooled] How manny people do you normaly fly
There's usually 2 of us on the field study team. However, the Gulfstream
IV corporate flight only allowed for one researcher to go. That was a
pretty long flight too. It started in New Orleans and landed in Sydney,
Australia 23 and a half hours later!
[ Alex-Alex/homeschool - 48 - 10:39:15 ]
Do you know any internet sites on coins, area 51, SR-71?
[ Ray/Ames - 50
- 10:41:29 ]
RE: [Sarah/Greenmeadow] Ray in the journal about the pilot
who crashed I wanted to hear more about why he crashed and what he should
have done differently. Are you going to write another joourhal or can
you say something about that?
Hi Sarah, The pilot who spoke in our workshop last week gave us a lot
of insight as to the "feel" on the flight deck minutes before the accident.
The captain and first officer were on duty over 12 hours before the accident.
Because this duty period was considered legal (within the guidelines of
the Federal Aviation Regulations), the pilots were able to fly. I'll give
more details in a later journal, but I can answer any specific questions
you might have at this time.
- 51 - 10:41:56 ]
RE: [Alex-Alex/homeschool] WHERE ARE YOU SUSAN?
I'm here Alex, I 'll get back to you on the SR-71 sites. I know that there
are some great pictures of it at Dryden Flight Research Center's picture
archive Have you been there?
[ Carl/homeschooled - 55 - 10:45:17 ]
Have you heard of the F-16 xl?
[ Alex-Alex/homeschool - 54 - 10:43:54 ]
I haven't herd of that plane!
[ Carl/homeschooled - 55 - 10:45:17 ]
It was/is a test arcraft for perferated wings. Supposedly able to cut
turbulence by 70% at suppersonic speed :)
- 56 - 10:45:23 ]
RE: [Alex-Alex/homeschool] No I haven't!!!
Whats the address?
http://www.dfrc.nasa.gov/gallery/photo/index.html They have pictures of
the F-16xl too!
[ Alex-Alex/homeschool - 57 - 10:45:58 ]
[ Ray/Ames - 58
- 10:46:24 ]
RE: [Alex-Alex/homeschool] I did not read all your bioghrufy.
Is this spelled right? What did you want to become at first?
In high school, I liked chemistry (my father was a chemist and pharmacist
in the Air Force) and other science courses. I thought I'd like to be
a pharmacist and had lots of support from the folks. A high school counselor
gave me a bit of advice and I'll pass it on to everyone here. If there's
something that interests you in a career, seek out opportunities to determine
if that's what you really want to do. After working in a pharmacy while
attending college, it was much different that what I thought it would
[ Carl/homeschooled - 59 - 10:47:40 ]
Have you ever flown a plane for more than 24 hours Ray?
[ Ray/Ames - 60
- 10:48:33 ]
RE: [Carl/homeschooled] It was/is a test arcraft for perferated
wings. Supposedly able to cut turbulence by 70% at suppersonic speed :)
I've never heard of the F-16XL either. Sounds impressive. Are you interested
in designing or flying airplanes, Carl?
[ Ray/Ames - 63
- 10:51:30 ]
RE: [Alex-Alex/homeschool] What will happen if you hook the
EEG to a plant or a jelly fish?
I've never hooked up a plant of jellyfish with electrodes. I'm not sure
what kind of activity I would see. The brain waves I see from a human
subject is the patterns of electrical activity surrounding the area that
each electrode is placed.
- 64 - 10:51:50 ]
Whoa! Only ten minutes left, time flies, sorry I couldn't resist! Get
some good last questions in for Ray!!
- 65 - 10:54:03 ]
RE: [Carl/homeschooled] Yup I know several
people who worked on the Comanche and the F-22 but I'm probably gona wind
up with a degree in computer science.
Computer science is great for aero design these days Carl!
[ Ray/Ames - 66
- 10:54:13 ]
RE: [Alex-Alex/homeschool] I'm intrested in doing that! Only
top secret planes, or classified planes.
Keep up the studies. Math and physics are an important part in the realm
of aerodynamics, but stay well rounded. Stay focused on the history, English,
and other humanities courses.
[ Ray/Ames - 68
- 10:56:35 ]
RE: [Susan/NASAChatHost] Computer
science is great for aero design these days Carl!
Susan's right on the money. There are lots of computer science folks our
here working on high speed transport, tilt rotor, and helicopter design...
[ Alex-Alex/homeschool - 69 - 10:56:41 ]
Carl, do you know sites on the YF-22 and the YF-23 and sites on the U-2
and the B-2?
[ Carl/homeschooled - 70 - 10:57:36 ]
Do you wind up in much realy bad weather in those tropical countries?
[ Carl/homeschooled - 71 - 10:58:18 ]
umm let me find some alex
[ Ray/Ames - 72
- 10:59:57 ]
RE: [Carl/homeschooled] Have you ever flown a plane for more
than 24 hours Ray?
The longest I've flown an airplane for is 4 hours non stop and about 8
hours in a day. That's about all I can tolerate. The planes that I fly
are under 12,500 lbs. and propeller driven. Not blazing fast, but still
lots of fun. There's nothing like seeing the view from 8,000 feet...
[ Carl/homeschooled - 73 - 10:59:57 ]
sorry if you have seen this befor but its the best one http://www.dfrc.nasa.gov/
- 75 - 11:03:25 ]
Well this has been a terrific chat! I'm so grateful Ray for all you educational
answers! We've learned lots. Check the chat schedule everyone we'll be
scheduling some more great chats!!
[ Ray/Ames - 76
- 11:03:32 ]
RE: [Sarah/Greenmeadow] Thansk for your answer, Whats the
best thing to avoid jet lag?
There are several ways to avoid jetlag and I'll provide some countermeasures
for you in the next journal article. It seems we're almost out of time
but I leave you with this. There are preventive measures you can do several
days before going on a trip. There are lots of things you can do while
on the trip too. This includes strategic caffeine consumption (which doesn't
have to be coffee-coke, mountain dew, and chocolate have caffeine too).
I'll give you more later.
[ Carl/homeschooled - 78 - 11:05:22 ]
Thanks for the answers
[ Ray/Ames - 79
- 11:06:46 ]
RE: [Carl/homeschooled] Ray I like the view from 200 feet
in a helicopter going 100-140 mph
200 feet in a helocopter sounds exciting. Are you the driver?
- 80 - 11:07:54 ]
RE: [Alex-Alex/homeschool] By Carl, Ray and
Susan. Susan, when I asked you where you were, I meant--where in the US
are you located?
Alex, we, Ray and I are at NASA Ames Research Center, Moffett Field, next
to Mountain View California, 35 miles south of San Francisco and 10 or
15 miles north of San Jose, look it up on a map
[ Carl/homeschooled - 81 - 11:09:05 ]
I have been both driver and passenger... Its funner to drive
[ Ray/Ames - 82
- 11:09:40 ]
I've enjoyed the chat this morning and would like to thank all of you
for participating. There's a ton of things to learn from all the people
on the Aerospace Team. I wish you all the best, and how about a round
of thanks to Susan for setting these great chat sessions up! Hope to talk
with all of you again soon.
[ Carl/homeschooled - 83 - 11:10:25 ]
see ya guys
Answers from Ray Oyung