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gptkbp:instanceOf
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mechanical analog computer
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|
gptkbp:accuracy
|
typically 3 significant digits
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gptkbp:alsoKnownAs
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gptkb:slipstick
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gptkbp:category
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historical technology
calculating tool
mathematical instrument
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gptkbp:component
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cursor
fixed ruler
sliding central strip
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gptkbp:declinedAfter
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1970s
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gptkbp:displayType
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analog
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gptkbp:has_scale
|
gptkb:B_scale
gptkb:C_scale
gptkb:D_scale
A scale
L scale
S scale
T scale
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Slide rule
|
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gptkbp:inventedBy
|
gptkb:William_Oughtred
17th century
|
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gptkbp:length
|
varies
commonly 10 inches
commonly 25 cm
|
|
gptkbp:main_users
|
gptkb:engineer
gptkb:scientist
students
|
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gptkbp:material
|
gptkb:plastic
metal
wood
|
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gptkbp:notableBrand
|
gptkb:Pickett
gptkb:Aristo
gptkb:Keuffel_&_Esser
gptkb:Faber-Castell
|
|
gptkbp:powerSource
|
none
|
|
gptkbp:relatedTo
|
gptkb:Napier's_bones
calculator
abacus
logarithmic scale
|
|
gptkbp:replacedBy
|
calculator
|
|
gptkbp:used_in
|
gptkb:satellite
gptkb:Apollo_missions
engineering education
scientific research
|
|
gptkbp:usedFor
|
gptkb:division
mathematical calculations
multiplication
roots
trigonometry
logarithms
|
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gptkbp:bfsParent
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gptkb:calculator
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gptkbp:bfsLayer
|
4
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