Transactions of the Cambridge Philosophical SocietyUniversity Press, 1830 |
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الصفحة 55
... piece would be much improved by giving a slight curvature to that side of the fourth lens next the eye , and by making the second lens a meniscus , in which the radius of the concave surface next the first ... Eye - pieces of Telescopes . 55.
... piece would be much improved by giving a slight curvature to that side of the fourth lens next the eye , and by making the second lens a meniscus , in which the radius of the concave surface next the first ... Eye - pieces of Telescopes . 55.
الصفحة 56
... eye - pieces to a most inconvenient degree . In the four - glass eye - piece , the confusion is not by any means so great as if a single eye - glass were used ; and is not one - fourth of that in the three - glass eye - piece . The ...
... eye - pieces to a most inconvenient degree . In the four - glass eye - piece , the confusion is not by any means so great as if a single eye - glass were used ; and is not one - fourth of that in the three - glass eye - piece . The ...
الصفحة 57
... eye - piece be not achromatic , a star appears a coloured line , with no difference of intensity of light , except that depending on the nature of the colours . It appears to me , therefore , that the first thing to be aimed at for the ...
... eye - piece be not achromatic , a star appears a coloured line , with no difference of intensity of light , except that depending on the nature of the colours . It appears to me , therefore , that the first thing to be aimed at for the ...
المحتوى
by THOMAS JARRETT Esq B A | 65 |
Theory of Escapements by G B AIRY Esq M A | 105 |
On the Pressure produced on a flat Plate when opposed to a Stream | 129 |
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a₁ achromatic acqv angle annuity applied axis CAMBRIDGE PHILOSOPHICAL SOCIETY capital chronometers clock condensations conic section constant converge convex curve definite integral determined diameter diaphragm direction disc distance disturbance effect equal equation equi-convex eye-glass eye-piece Female fluid focal length fraction function GEORGE BIDDELL AIRY give given Hence increase instant integral lens be plano-convex lenses Male manner motion nearly nt+b object-glass observations obtained orifice paper plane particles pencil pendulum perpendicular pipe pitch plane side plumage portion position pressure probability produce profits propagation quantity ratio rays reed refraction rent satellites shew shewn spherical aberration supposed supposition surface t+r+1 theorem Titmouse TRINITY COLLEGE tube velocity vibration vowel wave аф