المؤلفون: Science Gossip

مصطلحات موضوعية: Plant biology not elsewhere classified, Zoology not elsewhere classified, History and philosophy of science, Angle, angle measurement, quadrant, protractor, instrumentation, optics, metrology, Rev. N.J.Heineken, Geometry, angle measurer, invention, Schmalcalders quadrant, instrument, lens, angle of altitude, brass tube, aperture, Schmalcalder's quadrant, angles, measurement, A New Angle Measurer Rev. N. J. Heineken, scientific instrument, Angle measure requiring, tool, measurer, schmalcalder, prism

Relation: https://figshare.com/articles/figure/The_Intellectual_Observer_v_8_1866_Page_197_ASC000013p/22072229

الاتاحة: https://doi.org/10.25446/oxford.22072229.v1
https://figshare.com/articles/figure/The_Intellectual_Observer_v_8_1866_Page_197_ASC000013p/22072229