1
10
54
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/cf4b546efcf3315a7003515b2412c145.JPG?Expires=1712793600&Signature=qf2LGjCKvRfifuH0Nc6nkNvo3vy6xHWFWIPLF39Zdrn3i4%7E8JeoAcx7h2iUY1tixzBet2TTL7ZXoEb4o3M8zklCpv%7EAeWlz6IYVe6NT3Kqu5lM3tjR9du6jERzi88Go9f7y4JtZerYH2yXdittmBi84rXm0pA0Vp41k1TSQ0g2-kbKfKTrf1g84b2rwhATuL%7ERUKcYAUqQIitpScc2xf9UwPyuXClEcrNlaGbJNriBJco-jbNnx4saT7c%7E%7ENPdctqe%7EYflz3lBEbdPsTyjP074pgLh6oEcHFpGhl4RixwxWEDmyFSHDq7qisjnbYPrMk%7EImFAm48tqYGXeZYUPoRlg__&Key-Pair-Id=K6UGZS9ZTDSZM
4af6f28a44eb88d203d84fa7d8d2d8e8
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
1200
Width
1600
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Absorption Cell
Subject
The topic of the resource
Optics
Description
An account of the resource
<strong>These glass spheres were used to contain gases such as iodine, bromine, and hypo-nitrous acid in order to study their light-absorption properties, i.e. their absorption spectra. Light shown on the cell passed through the glass and was absorbed by the gas differentially at different wavelengths. The spherical cells are listed in the 1888 "Illustrated Catalogue of Instruments used in Physical Optics" published by James W. Queen and Co. of Philadelphia at $7.00.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Optics
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/75c5e124ccf587503dac502c0eaf137d.JPG?Expires=1712793600&Signature=D8Jd5Pqu%7EtlbWagRoGwlSTcDmUelaI2pXl9JOWHTugV7AjhhDvzDQb7X9C2GTx-VAY-VUQCr4phEDP1j-k-HO%7E6LsmEwEcYCBdqpDFme4yE0utUTNPeT5-8xS-8epRW3y4pST1snTfqT2XQoJjqt-Z0GHxghYC6wfkbY-0CFjH8eGprPezO07EJinPTxsGZBCokurcWO9xAkWH-9EawuVkabkaZUadfIweWl-vVpckZ1f86cCb0te75wAKQefpIMuIFYkfxENsmNTGxgTgYdqvHmNFgkJilxPnt7XplzDMbBrp5UpWTVVi9oU4H1e2O9eBXDPKzuFp%7EkcbMtcfLujg__&Key-Pair-Id=K6UGZS9ZTDSZM
1b1b6fa3ed89bd6fea843500ea487a3a
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
1600
Width
1200
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Achromatic Prism
Subject
The topic of the resource
Optics
Description
An account of the resource
<strong>The three prisms hanging from the brass stand may be folded up in pairs to demonstrate achromatism (no color separation) or constant deviation (no color dependence of the angle of minimum bending of light.) These were made by Lerebours et Secretan of Paris, and are listed at 50 francs in the 1853 catalogue.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Optics
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/5069b192d4453b5b1eeeffe78be9803a.JPG?Expires=1712793600&Signature=BhuRhVJttP742jep66gBuXPY6YtOm8mhPVouN-hbKRlFEtAqiLlN4nCvIE7RKj2pKxfLw7EnQ9UDcWfeQDuXI3G9aWsKfMibCwblJOK%7ExNGEY6PDyFeduoc2LonNLNLYSYjtBfjzoG9Itnagc3fLDX4ukIfPpN8uM9KKW--jTOzC8MXKUs0BRBzy58aJmzIJkPDa7oEeIttj5vXiZ4uXWwfgWqIoMkwkbv7laIePkTuV00IMk-kqoLlI1jR17whlqxSFKVxR918GOZ-1mXBjciy0FJaLiRdTZiQQ0xtmAz33x-pYyrU%7E8nvga80BsJDPGFK1eGpHMcM6Y6ScfymnXg__&Key-Pair-Id=K6UGZS9ZTDSZM
7c070a08bb0a20eadfeec12b246a4c43
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3000
Width
4000
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Ammeter
Subject
The topic of the resource
Electrical Measurements
Description
An account of the resource
<strong>An ammeter is a device for measuring electric current. The analog ammeter is constructed so as to pass only a small (but known) fraction of the current to be measured through the meter movement that deflects the needle. This allows a very sensitive measuring device to safely measure large currents. The basic mechanism was developed by Edward Weston in the last few years of the 19th century. Analog ammeters have been almost entirely replaced in the last two decades by digital current meters.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Electrical Measurements
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/7f83cdc1ed148045fa3f7ae13a341091.JPG?Expires=1712793600&Signature=o52%7Ea4vN5uk3ycAkXbXX38SE9mOP0QX70ecj0L2KqdLygmO93eyMPMMUqDMT4zOOB-aCkf17yMOuBSinz5Aliq10fbm7bsnaxk9amTPc5ZfYLSwIpVElinrSEGhZPX5rACAVY0gT3g0T0xY45Kw-WWsIscSidXcp%7Ed2XqZehBsOU7wtK2-HejUdyy9dYLIN5zNZaIg4rauvv6d1CxtGuQdOgubY082oW2ukvJxPNMmBucl7p-q1jejFlAYglEHO4yQPMWUX-085u6IBZUK6uCYIQjeg6dPtGWgcV0UAThAUPRn1kskZaB3FYY%7E25R7f-i7lTgjNGXLXvEMp36hPOpA__&Key-Pair-Id=K6UGZS9ZTDSZM
a6dba50b5e3e5effaab43d2712fa2269
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
1200
Width
1600
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Analytical Balance
Subject
The topic of the resource
Chemistry
Description
An account of the resource
<strong>Analytical balances are accurate and precise instruments for weighing chemical samples. They require a dust-free and draft-free location on a solid bench that is free of vibrations. The samples must be measured at room temperature to prevent natural convection from forming air currents inside the enclosure, affecting the measurement of mass. Currently, such measurements are made with electronic instruments.<br /></strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Chemistry
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/f33a4f5474bf9dc33bb5d034ed04fb1b.JPG?Expires=1712793600&Signature=MszVNXp21ZOh59EhbB93Z6YYzrzbnzcvHjjP9PLRgll1%7E7Jk0KPrMHjF6SG%7EJBy0pWVch5dAGwSWPWMOypkgFWxoyUb8A8Nnsyf2KdIDGJPf0DcQ94jaofZA%7EVZEVcWASLMUZAIKSzeAckAuLq7A15eYzsh%7Ea0DbS5tS1iD-qrMyut-mXy2xyM7iaTQIYeZSzNpnLlIWyM%7ELeYPsgK2r6wWTtinySNW6H75vNI8hxiCrwIoGJHuVq7xWZJeymUW8w%7Ebhou53D5hpRv8o91SN0B-Lquzipb1aKfHhu6UZzZxkw9hHKW1A4V6tvsSiNxaumFRX7rhmtVqaQhkFqF7EiQ__&Key-Pair-Id=K6UGZS9ZTDSZM
cca12728dbcd717cf783facd7bb23c0e
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
1600
Width
1200
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Arc Light Control
Subject
The topic of the resource
Electricity
Description
An account of the resource
<strong>Lightning is the ultimate arc lamp, and so Benjamin Franklin's 1752 experiment of drawing electricity from the clouds and jumping a spark is perhaps the first arc lamp. In 1801 Humphry Davy observed the brilliant spark obtained when the connection between two carbon rods, attached to the poles of a battery, was broken. Some years later, in a demonstration lecture at the Royal Institution, he produced an arc nearly three inches in length. He used a voltaic battery with 2000 sets of plates, each four inches square. Commercial arc lighting had to wait for the development of dynamos such as the Gramme Machine in the early 1870s.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Electricity
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/7d24008ec1cfbd8872b657e55607d487.JPG?Expires=1712793600&Signature=i%7E5jka4HotgNjjzSO5F8mO0dZoO-leDyxzPKkKOI8FEWfar3zqEcE6195z6jVnM4m5npdXtrVXLr%7ErU54x8-UX78q1s52GghB01HcVG8Q4DhuW3MWf30cAHvVl3BtAYacUO25IAf-gMRgKY7tFn7R8NyCsPHBFLy%7EPQJXU65AyQw8Y1sOvjh1vsMkMmQOaoj7XnnyDbPHNexf4f9SM%7E4mtvwCMga-m3I0vQRzG6GkZK0HfPyf7ivsnQSDxOGlhKpGYM4Wt6BsS8GMWdUs3sap4qEOWsdlJTZUfP4B7UUkwEMJuueYdT7h-3OiwWC33OmRiTCdZksYEEdwkibRrdqcw__&Key-Pair-Id=K6UGZS9ZTDSZM
7208bc5c4ae4c6b1b6f8b28462a24d4b
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3000
Width
4000
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/5a642972357bf15fb8f5c6f2f009d39c.JPG?Expires=1712793600&Signature=KuG2OiW0bE1TMI-Q0dteTKwSWUM%7E-0RajAB6pOB7piRQ1syipLJLS7egFpKAKtwzMhFaEKPvG5nMw7N5xJLGfrdNuLHjCrdcuC2G0iSKunc-PYbm8vcfZ9NRmB2Jt-Xgcljbb4PBfqDYTA4KXjJYJixXAsDbu00%7EkGJ81kj8S%7ExwXgRHTllmfKUDawQlqMxXsNYVg%7EKmGSojAunGjRA7dUL0XYmSHIO8RQo6uU8opR9Skd8ouIlKs9V9cX438fFF4C%7EMNo7AGwkmGrdeYKQ%7EXR7cNOtiBLkrOK5bfd7GMT7qC9Pm7mcgeQvrlWGMKxuSiY6dXlfodndR548xbNGxtQ__&Key-Pair-Id=K6UGZS9ZTDSZM
9f34482cbff5819dc1880427aa8a0bf5
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3000
Width
4000
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Balance with Weights
Subject
The topic of the resource
Measurement of Weight
Description
An account of the resource
<strong>The simplest type of balance, the equal-arm, or beam, balance, is an application of a lever. A uniform bar, the beam, is suspended at its exact center on a knife-edge set at right angles to it. The point of support is called the fulcrum. Two pans of equal weight are suspended from the beam, one at each end, at points equidistant from the fulcrum. The object to be weighed is placed on one pan, and standard weights are added to the other until the balance of the beam is established again. The unknown weight can then be determined by adding up the standard weights in the pan.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
weight measurements
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/1785624a4f389c1db1631563564f762d.JPG?Expires=1712793600&Signature=K4yA-d9CCGekaeCmson8hvCEYNYopROjuTuJIvBeYutP-vCwIXAWs%7EF7uuUeAhQBMDtpkUBP7USM7VBxagsXENZ5QE9Xo2kKD49R3Tuck4q1to9L1BeWg6jMVDFKo94pBYJEenpNcjDJDB3JaI5yWwzzDT2a6WFpghzu-UalXFS7gBKOrIF9IMf2amTd2dFeG0iVQ%7E%7ENSpTPWVyvzOpmIDS1kL4bBlASqQ4jHRpw0tNIqirGW7r%7EQOZfqCat7MzLOSckcmVFS9gsePccV0baDkzHSiCIKXQTSvthSsUrwfcBGr7H6PtxQphFS08%7Et373k2rDPS2fXc4Y4QbartD1vg__&Key-Pair-Id=K6UGZS9ZTDSZM
ed0945ee36b8c9265678f32002059389
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
1200
Width
1600
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bladder Glass
Subject
The topic of the resource
Pneumatics
Description
An account of the resource
<strong>This is a device used to demonstrate the effect of atmospheric pressure. A glass vessel with openings at the bottom and top has its large top opening covered by a piece of animal bladder that is tied to seal it around its edges. As air is pumped from the vessel through the bottom opening, atmospheric pressure causes the bladder to deform downward, ultimately bursting with a loud bang. This seemingly simple effect is mentioned in the majority of nineteenth century physics textbooks.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
pneumatics
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/04e7750553959538f488ac1d6b8cfae0.JPG?Expires=1712793600&Signature=ocTDDWdDNgAGb9Oqg6BP5ocjC48kV6eGJoejE5j%7E8HjwwZjfyQyvZAvfeT3GCDO4OZ25AoM25DTaFScN91Y3ClmTX78hMcoHbtDQYRay6xq5ar6vMJFzNy3vPTCbS3qjigGH4IkN-Af%7E9gLatPqPYYlU7s1FOjB3dgFK55UIS8YMI4K0dTRJZsZ9n2axNbvlLiDjOT3j043cdlPOXXFh2mkDz8AmszGwXTfRQ5qkC-6sQdU5HfIYBPbKeawde4Vd49kfKD5bEvpKkw3dKmGo7elfrSY4qUNLXZyyzEyItrHZSrdnef7PnfNkPl7I3eYLtjCoAH6LZh8dyPCwLsLS1Q__&Key-Pair-Id=K6UGZS9ZTDSZM
9eb2e685736cb4a7adf692e028bc1205
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3000
Width
4000
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Buoyancy of Air
Subject
The topic of the resource
Pneumatics
Description
An account of the resource
<strong>Chemists, and other people who do careful weighings, know that we live at the bottom of a sea of air, and that a buoyant force equal to the weight of the air displaced by our bodies acts upward on us. Alas, the density of air is small, and the buoyant force is also small. To demonstrate this effect, a brass balloon is placed on one end of an equal arm balance. When the air surrounding the balloon is removed, the buoyant force is removed, and the balance tilts.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
pneumatics
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/e0a9f7233a271227ef3d0cbca833a252.jpg?Expires=1712793600&Signature=lA10CkzLlkJNIQWOsGhoR54HP4vl1569sZw-BQ-tj1Mcqgv1HE26YH77NN5Htws4-mF-OWD69O7m-3XcSfBQRKmZWYa2YKoglNb1H9cm9%7E5adUwKbncMFL9Y1YH9Ify0lgfbEP0pIG2Jflil4PMw9-NjEzwiGzQuRtMcW8oo5-HMAfDXxGtEg3M1pXqloaYx7%7EqAeeusEhs4ZXmi3drFfOfMXrUh3WxAHPBLA-qVaT0cPr6HHhpAAaWeSf17MlXQ1QwOFZGO%7ErNBlnfG8Fn%7Ev0yARM0RWVeAXFwxSVRxaoiUlGAlSIseZQFowgxmleweWVAeSKqGLLnhaFIbUnVn%7EA__&Key-Pair-Id=K6UGZS9ZTDSZM
41b818a2051f4db4028fee382c90fe90
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
2848
Width
4256
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Cenco Wimhurst Electrostatic Machine
Subject
The topic of the resource
Static Electricity
Description
An account of the resource
<strong>When the large center disk, made of non-conducting material with metallic strips attached, was turned using a hand crank, fixed metallic brushes rubbed against the metallic strips causing them to become charged. The charge was drawn off and collected in Leyden jars at lower left and right. Movable rods connected to the Leyden jars could be put to use in driving pieces of electrical demonstration equipment, like the Electric Whirl.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
Static Electricity
-
https://d1y502jg6fpugt.cloudfront.net/2253/archive/files/55aa01966a9826f0904c15714a50a179.JPG?Expires=1712793600&Signature=SgDdr8uxgOo7k19S%7E5vXViIf1aqJnAnHEdVt6F3rfr0XTiVduAR2ELmgisABHY9j85O6HjFxq0foYgu6SuhThYcDhGeOqv7CVEJgmdxcrrIcZTACtqTCaupQL4xjqVpsV7aA1b9FMCASPDaG5%7Ebh-X9S6sOERZpZeDYYjA%7E%7ERPp4bTA6sR5TFCgEvkGFog-h73gS%7EZsWye4tz9ABNTvjoQ596QTAza8L96ctl24wDUNhdcY4EjC4HquZOZGNlB8Y8COL5pQjwb9tBPOkvkVc6ugiBIClr2qXAezTvGKnBtodh7iarbdfNvzs1dWTTd%7EB95YkxDQRP4tjnYgwzGij8A__&Key-Pair-Id=K6UGZS9ZTDSZM
c353e4eefccc9b7420a6e13061468e88
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
3000
Width
4000
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Circular Protractor
Subject
The topic of the resource
Mathematics
Surveying
Description
An account of the resource
<strong>A mathematical instrument for laying down and measuring angles on paper, used in drawing or plotting.</strong>
Source
A related resource from which the described resource is derived
Property of the W&L Physics & Engineering Department
mathematics
Surveying