|
Size: 1582
Comment:
|
Size: 1868
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| ||<:30%>[[PiraScheme#Optics| Table of Optics Demonstration]]||<:30%>[[OPEquipmentList| List of Optics Equipment & Supplies]]||<:30%>[[Demonstrations|Lecture Demonstrations]]|| | ||<30% style="text-align:center">[[PiraScheme#Optics|Table of Optics Demonstration]] ||<30% style="text-align:center">[[OPEquipmentList|List of Optics Equipment & Supplies]] ||<30% style="text-align:center">[[Demonstrations|Lecture Demonstrations]] || |
| Line 4: | Line 4: |
| = Light Pipes - Ulexite, PIRA# = | |
| Line 6: | Line 5: |
| = Light Pipes - Ulexite, 6A44.40 = | |
| Line 7: | Line 7: |
| Newton's First Law, [[Newtons1STLaw#InertiaofRest| 1F20. Inertia of Rest]] | . Geometrical Optics, [[GeometricalOptics#TotalInternalReflection|6A44. Total Internal Reflection]] |
| Line 10: | Line 11: |
| Line 11: | Line 13: |
| * '''Bay:''' [[OpticsCabinetBayA1|(A1)]] * '''Shelf:''' #1 |
* '''Bay:''' [[OpticsCabinetBayA2|(A2)]] * '''Shelf:''' #1 |
| Line 14: | Line 16: |
| attachment: mainPhoto | {{attachment:Ulexite2.jpg}} |
| Line 18: | Line 20: |
| Ulexite is a naturally occurring mineral which consists of parallel fibers. ||<:style="width: 60%" :40%>'''Equipment'''||<:30%>'''Location'''||<:25%>'''ID Number'''|| |
Ulexite is a naturally occurring mineral which consists of parallel fibers. Each fiber may act as a light pipe. ||<40% style="text-align:center">'''Equipment''' ||<30% style="text-align:center">'''Location''' ||<25% style="text-align:center">'''ID Number''' || |
| Line 22: | Line 23: |
| ||apparatus||[[MechanicsCabinetBayB1| ME, Bay B1, Shelf #2]]|| || ||all other parts||[[MechanicsCabinetBayB1| ME, Bay B1, Shelf #2]]|| || ||...||[[MechanicsCabinetBayA5| ME, Bay A5, Shelf #2]]|| || |
||Ulexite crystal ||[[OpticsCabinetBayA2|OP, Bay A2, Shelf #1]] || || |
| Line 27: | Line 26: |
| '''''Important Setup Notes:''''' * ''''' ''''' |
|
| Line 31: | Line 28: |
| '''Setup and Procedure:''' | '''Setup and Procedure:''' |
| Line 33: | Line 30: |
| 1. List steps for setup then procedure. 1. ... |
Place the Ulexite sample above printed text. As one moves one's head around, or moves the Ulexite, it appears as if the text is written on the top of the ulexite. The effect is striking. |
| Line 36: | Line 32: |
| '''Cautions, Warnings, or Safety Concerns:''' * |
In above picture, observe the disjunction in each line of text, for example "fiber" is a little above "optic". The camera lens was directly above the blue line at the top of the page of the printed text. |
| Line 39: | Line 34: |
| '''Discussion:''' | |
| Line 40: | Line 36: |
| '''Discussion:''' Discuss the physics behind the demonstration, explaining some of the various steps of the demonstration when appropriate. ||attachment: photo||attachment: photo||attachment: photo||attachment: photo|| |
Ulexite is birefringent, and the "light pipe" phenomenon it displays is a consequency of the birefringence and the fibrotic structure. |
| Line 47: | Line 39: |
| Line 51: | Line 44: |
| * Wikipedia: |
* Wikipedia: https://en.wikipedia.org/wiki/Ulexite |
Light Pipes - Ulexite, 6A44.40
Topic and Concept:
Geometrical Optics, 6A44. Total Internal Reflection
Location:
Cabinet: Optics (OP)
Bay: (A2)
Shelf: #1
Abstract:
Ulexite is a naturally occurring mineral which consists of parallel fibers. Each fiber may act as a light pipe.
Equipment |
Location |
ID Number |
|
|
|
Ulexite crystal |
|
Setup and Procedure:
Place the Ulexite sample above printed text. As one moves one's head around, or moves the Ulexite, it appears as if the text is written on the top of the ulexite. The effect is striking.
In above picture, observe the disjunction in each line of text, for example "fiber" is a little above "optic". The camera lens was directly above the blue line at the top of the page of the printed text.
Discussion:
Ulexite is birefringent, and the "light pipe" phenomenon it displays is a consequency of the birefringence and the fibrotic structure.
Videos:
References:
Wikipedia: https://en.wikipedia.org/wiki/Ulexite