Part of a scientific laboratory at the University of Cologne.The Bohr model of the atom, like many ideas in the history of science, was at first prompted by and later partially disproved by experiment.Science continually seeks to gain increased understanding and, where appropriate, the possibility for control of many specific aspects of the physical world.  Its successes in achieving this goal stem directly from its ability to elucidate the foundational mechanisms which underlie nature's processes. Here, an image of "artificial" bioluminescence which has been induced in a tobacco plant by the use of genetic engineering.
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Science Instruments

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EDWARDIAN WALNUT BAROMETER [3897] US $10.82 *RARE VINTAGE "OSTA" PRECISION DRAWING SET AND CASE! US $7.72
THE LICK TELESCOPE 13 X 19 INCH POSTER US $7.99 VINTAGE THE LICK TELESCOPE OBSERVATORY 13X19 US $8.99
Edison Knife Switch Lamp Lightbulb Light Bulb Socket US $6,500.00 SLIDE RULE, ACU-MATH No 400 US $19.90
ROTRING GERMAN COMPASS US $14.99 c. 1896 SAMSON BATTERY NO. 2, GLASS CASE & DATED US $9.00
Hoyt Vintage Amp Meter Bakelite Casing Type 515 1920's US $29.99 VINTAGE UNIVERSAL INHALER BOX & INHALER US $3.99
Rare Violet Ray Tefra Hair Brush Comb Wand Attachment US $39.99 MELTING POINT APPARATUS, SMP1 (CHEMISTRY & PHYSICS). US $69.63
ANTIQUE ELECTRO-MAGNETIC MEDICAL MACHINE - FROM 1850'S US $425.00 Vintage #133 Rheostat Electric Ohms Device-Physics Labs US $8.99
ANTIQUE TRANSIT MADE BY BOSTON CO. / C.L. BERGER & SONS US $224.99 AVOMETER MODEL 9 MkIV (PHYSICS) by AVO LTD, ENGLAND. US $54.16
1800'S SCARIFICATOR/BLOOD-LETTIN G MEDICAL TOOL US $99.00 LABORATORY GLASSWARE, SELECTION OF, (CHEMISTRY). US $83.56
VINTAGE EARLY 1900'S 30 pc. BAUSH LOMB OPHTHALMOSCOPE US $50.00 PIPETTES & BURETTES, SELECTION OF, (CHEMISTRY) US $49.52
RUDE WWII AIRCRAFT STAR FINDER IDENTIFIER US NAVY 1942 US $4.64 Antique Holtzer-Cabot Dynamo Electric Hand Crank Motor US $199.00
DIATOM microscope slides by R.GOSDEN US $50.00 DRAWING Instrument Case {Brass Banded} Mahogany US $19.34
Antique Brass Telescope at No Reserve. US $3.99 MICROSCOPE Slide Staining Trough [GLASS] Unused c1960 US $4.33
SPOT Wells [Black Glass] x2 {Biology} US $4.33 BINOCULARS {Folding} Flip up Case [Theatre etc] US $7.43
INDUCTION COIL {Demonstration} Philip Harris Ltd US $54.16 TOOTH Model [Dissectable] Adam Rouilly {FINE} Large US $34.82
MULTI METER, ANALOGUE, (PHYSICS), by EAGLE PRODUCTS. US $27.08 LECLANCHE CELL, VINTAGE (PHYSICS) US $30.93
DIFFERENTIAL GEARBOX, CUT-AWAY MODEL (PHYSICS) VINTAGE. US $216.64 Antique Vintage VOLT METER US $6.11
Antique Thermometer / Brass Finish/American Indian US $175.00 GEARBOX, TRANSMISSION, CUT-AWAY DEMONSTRATION (PHYSICS) US $340.43
STEAM ENGINE, MODEL,TWIN CYLINDER, (PHYSICS) by 'MAMOD' US $77.37 DISLOCATION IN METALS, ANALOGUE (PHYSICS, METALLURGY). US $30.17
RESISTANCE BOX, PLUG TYPE, VINTAGE (PHYSICS) P HARRIS. US $27.08 VOLT METER, DEMO. VINTAGE (PHYSICS). MADE IN THE USSR. US $69.63
VACUUM TUBE, VINTAGE (PHYSICS). US $58.03 Protractor Antiques Navy Russian Helix tool US $34.99
DISCHARGE TUBE SPECTRAL, MERCURY VAP (PHYSICS) WORKING. US $38.69 DISCHARGE TUBE, SPECTRAL, NEON. (PHYSICS) WORKING. US $38.69
DISCHARGE TUBE, SPECTRAL, HYDROGEN. (PHYSICS) WORKING. US $38.69 Antique Brass and Mahogany Relay J.H. Bunnell & Co. NY US $9.95
OLD DRUG STORE PHARMACY BALANCE SCALE WEIGHTS WOOD CASE US $15.50 Genuine 1840-58 Elliott Bros. Level/Theodolite/Transit US $699.99
J.H. BUNNELL TELEGRAPH SOUNDER US $9.95 MINNEAPOLIS TYCOS HONEYWELL THERMOSTAT WITH CLOCK US $35.00
CA 1918 TRIODE CG-1162 with PEACH GLASS AND EMISSION US $19.99 Antique Weston AC Millammeter Meter Model 155 1898 US $35.00
Burroughs Calculator - mechanical adding machine US $99.00 Augsburg Equinoctial Dial 18th Century - Andreas Vogler US $600.00
Octagonal 18th Century Dial - Signed L Graf US $350.00 Antique Chinese Fruitwood Sundial Compass - 19th C Qing US $22.50
4 General Radio GENRAD adjustable stubs lines standards US $6.00 ANTIQUE GLASS BATTERY JAR FAN/MOTOR Edison Era VINTAGE US $38.00
TELEGRAPH SOUNDER OR RELAY, WESTERN UNION, NICE TAG US $9.99 ANTIQUE MULLEN PAPER TESTER OF 1887 & CROSBY GAUGE NR US $100.87
FLAME PROOF TELEGRAPH KEY & OTHER MILITARY STYLE KEY US $9.99 Antique Chrome Hoyt Voltammeter Voltmeter Mahogany Base US $39.99
19C BRASS DRAWING INSTRUMENTS IN WOODEN BOX WITH KEY US $30.93 NEGRETTI & ZAMBRA BAROGRAPH IN MAHOGANY CASE. US $580.28
Brass Sundial Compass - Desktop Sundial Compass US $38.69 ANTIQUE BAROMETER BY 'HENRY HUGHES' Circa 1840 MARINE? US $386.85
Antique Cast and Brass Quality BUNSEN BURNER US $23.20 1920 Addometer Calculator in Case & Directions US $65.00
1929 Calculator Pencil by Ruxton with Directions US $195.00 1889 Webb Calculator with Directions Antique US $495.00
An Antique Paper Dial Brass Compass c1900 US $15.46 RARE EARLY ANTIQUE 18th C GEORGIAN W S JONES MICROSCOPE US $86.65
1930s View Master with Hopalong & Snow White US $25.00 1919 Chaplin Glass Movie Slide US $85.00
*RARE* ANTIQUE POTENTIOMETER Late 19th C *RARE* US $77.35 ANTIQUE FRENCH BOXED BRASS DOUBLE PILLAR MICROSCOPE US $157.83
19th century Hunter cased pocket compass by Newton & Co US $16.25 Vintage Frey Science 2-D Collision Set-Physics Lab US $8.99
Vintage Sargent Welch Amperes Rule Apparatus-Physic Lab US $24.99 Vintage SK Science Paper Tape Spark Timer-Physics Labs US $9.99
VINTAGE Physics OPTICS SOMCO 7"f:4 Anastigmat HUGE LENS US $7.99 VINTAGE Physics OPTICS LOT OF 4 Mixed/Assorted LENS US $9.99
Vintage Wooden Physics Mapping Device-Science Labs US $9.99 Lot of 9-10 VINTAGE Wire Triangles-Chem/Science Labs US $8.99
ANTIQUE VINTAGE PILOT BALLOON SLIDE RULE RULER MK 11 US $232.09 Vintage Chrome Cased Pocket Barometer/Altimeter. US $9.28
LASER [Spectra-Physics] Shown Working + Accessories US $185.69 MICROSCOPE {The} R.M.Allen [BOOK] USA {2nd Print 1941} US $74.28
Biological Model [TADPOLE] T.Gerrard [Plaster] FINE US $74.28 WESTON WATTMETERS [Instruction Book] Sangamo Weston US $7.43
OPTICS {Micrometer Eyepiece}+ Stand [Philip Harris Ltd] US $25.53 HEART MODEL {Instructional} BIOLOGY [Hand Painted] US $54.16
PELVIS Model [BIOLOGY] Rubber {Life Size} US $19.34 CATHODE RAY Tube {Maltese Cross} Rank Electronics US $100.58
VACUUM Tubes {CROSS's} Varying Degrees of Evacuation x6 US $34.82
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Prices current as of last update, 07/27/10 3:54pm.


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