The Nation's Schools, Količina 66Michael Vincent O'Shea McGraw Hill, 1960 |
Iz vsebine knjige
Zadetki 1–3 od 82
Stran 76
... surface viewed from any normal standing or sitting position should not be excessively greater than the brightness of the visual task . As the high brightness of surfaces in the visual field ap- proaches the brightness of the task ...
... surface viewed from any normal standing or sitting position should not be excessively greater than the brightness of the visual task . As the high brightness of surfaces in the visual field ap- proaches the brightness of the task ...
Stran 90
... surface brightness will usually suffice in the classroom -incandescent or fluorescent are not acceptable for classroom lighting even though they may be satisfactory for many other applications . Generally , any system that provides ...
... surface brightness will usually suffice in the classroom -incandescent or fluorescent are not acceptable for classroom lighting even though they may be satisfactory for many other applications . Generally , any system that provides ...
Stran 75
... surface . It's the one permanent chalkboard . No worry about a bucket chipping the surface , either . Moderate impacts won't cause flaking as they do when porcelain is bonded to a less compatible surface than glass . And Nucite resists ...
... surface . It's the one permanent chalkboard . No worry about a bucket chipping the surface , either . Moderate impacts won't cause flaking as they do when porcelain is bonded to a less compatible surface than glass . And Nucite resists ...
Vsebina
THE Nations Schools | 29 |
JULY OF MICHIGAN | 37 |
TEN DEPARTURES from convention in this Illinois high school page | 56 |
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