Gemini 4 Experiment Debriefing, 1967

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3
Belt 18
I think you ' r
drawing improper conclusions .
o. K.
I don ' t see why you say that the seeing conditions i n the daytime
were extr emely poor .
In t erms of visual accuity, for looking, for example at stars, -­
Well , how about for tur ning down &nd looking at objects on the
gronn ..
Now that ' s visual acc11 ' Ly , also .
Yes .
And ·1 thoup;ht it was oulstanding .
Looking a L br ight objects , you ::,ee .
Where you don ' t have a high
contrast required.
You mean on the ground they ' r e br ight , yes .
Then ther e is a high contrast required on the ground .
If you ' re
l ooking out at a star, you know, you 've got a bright star against a
black sky .
That ' s pr etty high contrast .
The same thing l ooking
down at the ground .
You ' re . ooking at a white road going across
a
u:rk. fi0 Id .
Yo1
can
e
those 1.hi.ne;s .
Y s , lrnt. t,IH' only :prohlem h re •i
Lhat you 're l ooking thro gh a
ha:G • or n ·cattered lay r of ljght. ...... scattering illto the space­
crafi. or on Lhe window .
For instance, the case if there's no
scat.t. red (frost) on th
spacec r a
When tha disappears at
nighL you can •·ec directly througl1 the window and yot r visual
sensitivity goes up Lo a maxim m o:f (photogr aphication ) .
Whict1 obvious y must have happened because o
the way things were .
Lei.. me t. 11 yoll what I think .
I .link there are so many things
.he layer on the