Boxed Place

Boxed Place

Obtaing a Spectrum by using a CD and a Cereal box aslike a Prism Spectrometer

A simple spectrometer can be built from a CD and a box. Cut a slit on one side of the box. Place the CD on the other side with about 60 degree angle. Look down into the openning on the box. The slit should not be too wide, otherwise the spectrum lines will be blurred. It should not be too narrow either, otherwise the spectrum is too dim. I use a 0.2mm wide slit.

                   structure of the CD spectroscope

my cereal box spectroscope (arrow: the slit)   viewing the spectrum

 

Let's look at the spectra of some common light sources. All photos by the authors with a Nikon coolpix 995 camera.

(1a) afternoon sun, altitude 24 degrees           (1b) setting sun, altitude 0.5 degree

 

(1c) high Sun spectrum                                 (1d) low Sun spectrum

 

I took this photo before the total lunar eclipse of 2004 . Moonlight from a full moon was collected with an 8" Dob telescope. The spectroscope was held behind the eyepiece. As moonlight is nothing but reflected sunlight, the spectrum looks the same as a solar spectrum (1). It is continuous with dark absort lines, i.e. the Fraunhofer lines (some of them are marked).

    The moon                                                         Use a telescope

 

Lunar spectrum

LIKE THIS YOU CAN USE THIS SPECTROMETER FOR FIND THE DIFFERNT SPECTRUM FOR DIFFERNT LIGHT'S.

FACTS

 Brace's Spectrophotometer Prism #10565
Unsigned


In D.B. Brace's research work he made use of spectrophotometers of various kinds. Not satisfied with them, he invented a simple, but effective new type that utilized two 30°-60°-90° prisms cemented together with a silvered strip between them. His device was subsequently manufactured by Schmidt & Haensch in Berlin, Germany and Gaertner in Chicago and was used, e.g., at the Yerkes Observatory. Several of his prisms remain in the department.

References: D.B. Brace, "Description of a new spectrophotometer and an optical method of calibration," Philosophical Magazine 48, 420-30 (1899); D.B. Brace, "On a new system for spectral photometric work," Astrophys. J 11 (1900): 6-23. Schmidt & Haensch Katalog II: Spektralapparate, 1900 and Katalog II Spektralphotometer, Pyrometer, etc., 1914.
  Large Prism Spectrometer #10060
Franz Schmidt & Haensch, Berlin, S.


The Schmidt & Haensch Company of Berlin offered this spectrometer for use with D.B. Brace's spectrophotometer prisms. The main scale is calibrated in units of 10 minutes of arc and with the vernier it can be read to 10 seconds of arc. In addition to the usual telescope for viewing and the collimator for the light source, this instrument has a second collimator tube to utilize his new spectrophotometric system which Brace described in the literature. He attached the department's 4-inch Brashear telescope, directed at the star Capella, to one collimator and a standard light source to the other. This enabled him to make quantitative measurements of the spectrum of the star.

References: Schmidt & Haensch Catalogue No. 55 (1896); D.B. Brace, Philosophical Magazine and Journal of Science, 48, 420 (1899); D.B. Brace, Astrophysical Journal, 11, 6-23 (1900).

 

About the Author

THIS PROJECT WAS CREATED BY G.ANGEN CLETUS,INDIA,TAMIL NADU,TRICHY.

IN 23.5.2010


Where would be the best place to find info on a royal mint boxed gold coin i have just gained?

it depicts 'The yeoman wardens of the tower of London' on one side and the other side is a pic of 'HM royal palace and fortress of the tower of London'

The item would more properly be called a medallion, and the study of objects of this type is called exonumia. It appears to be gilt or gold-plated, and there is likely a year stamped on the edge (rim). I hope this helps.



GIBSON BRIGHT BELLA 16pc DINNERWARE SET SERVICE FOR 4 CREAM REACTIVE STONEWARE
GIBSON BRIGHT BELLA 16pc DINNERWARE SET SERVICE FOR 4 CREAM REACTIVE STONEWARE
$78.80
Time Remaining: 33m
Buy It Now for only: $78.80

Christopher Stuart China Melody Hill Pattern 7 Piece Set
Christopher Stuart China Melody Hill Pattern 7 Piece Set
$49.99
Time Remaining: 37m
Buy It Now for only: $49.99

Royal Staffordshire Sherwood Ironstone by J  G Meakin England 49 pieces
Royal Staffordshire Sherwood Ironstone by J G Meakin England 49 pieces
$399.99
Time Remaining: 37m
Buy It Now for only: $399.99

Dinnerware Set Bianca Medallion Dolomite Salad Plate Bowl Mug Microwave Durable
Dinnerware Set Bianca Medallion Dolomite Salad Plate Bowl Mug Microwave Durable
$36.98
Time Remaining: 40m
Buy It Now for only: $36.98

Discount Dinnerware Sets Clearance Dishes Service for 8 Crockery Set 32 Piece
Discount Dinnerware Sets Clearance Dishes Service for 8 Crockery Set 32 Piece
$89.89
Time Remaining: 1h 2m
Buy It Now for only: $89.89

Bottom Dispensing Teapot Tea Pot Serving Kitchen 16 Oz Ice Home Dinnerware Bar
Bottom Dispensing Teapot Tea Pot Serving Kitchen 16 Oz Ice Home Dinnerware Bar
$34.40
Time Remaining: 1h 20m
Buy It Now for only: $34.40

Johnson Brothers Old Britain Castles 20 Piece Dinnerware Set Pink New Gift
Johnson Brothers Old Britain Castles 20 Piece Dinnerware Set Pink New Gift
$96.39
Time Remaining: 1h 22m
Buy It Now for only: $96.39

Paula Deen Signature Dinnerware Southern Gathering 4 Piece Dinner Plate Set Ches
Paula Deen Signature Dinnerware Southern Gathering 4 Piece Dinner Plate Set Ches
$32.88
Time Remaining: 1h 22m
Buy It Now for only: $32.88

GIBSON ELITE SQUARE 16pc DINNERWARE SET SERVICE FOR 4 HANDPAINTED DURASTONE NEW
GIBSON ELITE SQUARE 16pc DINNERWARE SET SERVICE FOR 4 HANDPAINTED DURASTONE NEW
$74.80
Time Remaining: 1h 27m
Buy It Now for only: $74.80

Rajrang Kitchen  Dining Aluminium Painted Dinnerware Bowls Pink Color Bowl Set
Rajrang Kitchen Dining Aluminium Painted Dinnerware Bowls Pink Color Bowl Set
$18.03
Time Remaining: 1h 33m
Buy It Now for only: $18.03

Rajrang Kitchen  Diningware Aluminium Dinnerware Bowls Grey Painted Set Of Bowl
Rajrang Kitchen Diningware Aluminium Dinnerware Bowls Grey Painted Set Of Bowl
$18.03
Time Remaining: 1h 33m
Buy It Now for only: $18.03

Rajrang Kitchen Dining Aluminium Dinnerware Bowls Magenta Painted Bowl Set
Rajrang Kitchen Dining Aluminium Dinnerware Bowls Magenta Painted Bowl Set
$18.03
Time Remaining: 1h 33m
Buy It Now for only: $18.03

Rajrang Kitchen  Dining Aluminium Dinnerware Bowls Painted Aqua Blue Bowl
Rajrang Kitchen Dining Aluminium Dinnerware Bowls Painted Aqua Blue Bowl
$29.95
Time Remaining: 1h 53m
Buy It Now for only: $29.95

Rajrang Kitchen  Dining Aluminium Dinnerware Bowls Painted Blue Bowl
Rajrang Kitchen Dining Aluminium Dinnerware Bowls Painted Blue Bowl
$20.75
Time Remaining: 1h 53m
Buy It Now for only: $20.75

Rajrang Kitchen Dining Aluminium Enamel Work Dinnerware Bowls Pink Painted Bowl
Rajrang Kitchen Dining Aluminium Enamel Work Dinnerware Bowls Pink Painted Bowl
$31.28
Time Remaining: 1h 53m
Buy It Now for only: $31.28

Rajrang Kitchen  Dining Aluminium Dinnerware Bowls Sky Blue Painted Bowl
Rajrang Kitchen Dining Aluminium Dinnerware Bowls Sky Blue Painted Bowl
$20.16
Time Remaining: 1h 53m
Buy It Now for only: $20.16

Rajrang Kitchen Dining Aluminium Dinnerware Bowls Enamel Painted Pink Bowl
Rajrang Kitchen Dining Aluminium Dinnerware Bowls Enamel Painted Pink Bowl
$20.47
Time Remaining: 1h 53m
Buy It Now for only: $20.47

Rajrang Kitchen  Dining Aluminium Painted Dinnerware Bowls Pink Bowl Set
Rajrang Kitchen Dining Aluminium Painted Dinnerware Bowls Pink Bowl Set
$18.03
Time Remaining: 1h 53m
Buy It Now for only: $18.03

Rajrang Kitchen Dining Aluminium Enamel Work Dinnerware Bowls Rust Painted Bowl
Rajrang Kitchen Dining Aluminium Enamel Work Dinnerware Bowls Rust Painted Bowl
$31.28
Time Remaining: 1h 54m
Buy It Now for only: $31.28

Corelle Impressions 16 Piece Dinnerware Set New
Corelle Impressions 16 Piece Dinnerware Set New
$87.37
Time Remaining: 1h 54m
Buy It Now for only: $87.37

Mexican Stoneware Green Rim Paisley 20 piece dinnerware set 4 people
Mexican Stoneware Green Rim Paisley 20 piece dinnerware set 4 people
$263.40
Time Remaining: 1h 56m
Buy It Now for only: $263.40

Gibson Home 9769416r Casa Stella 16 Piece Dinnerware Set Red new free shipp
Gibson Home 9769416r Casa Stella 16 Piece Dinnerware Set Red new free shipp
$46.71
Time Remaining: 1h 56m
Buy It Now for only: $46.71

Mexican Stoneware Tulip 20 piece dinnerware set 4 people
Mexican Stoneware Tulip 20 piece dinnerware set 4 people
$292.02
Time Remaining: 1h 57m
Buy It Now for only: $292.02

Mexican Stoneware Tropical 5 piece dinnerware set 1 person
Mexican Stoneware Tropical 5 piece dinnerware set 1 person
$105.99
Time Remaining: 1h 57m
Buy It Now for only: $105.99

Mexican Stoneware Blue Rim Butterfly 5 piece dinnerware set 1 person
Mexican Stoneware Blue Rim Butterfly 5 piece dinnerware set 1 person
$90.62
Time Remaining: 1h 58m
Buy It Now for only: $90.62

Mexican Stoneware Tropical 20 piece dinnerware set 4 people
Mexican Stoneware Tropical 20 piece dinnerware set 4 people
$292.02
Time Remaining: 1h 59m
Buy It Now for only: $292.02

Mexican Stoneware Blue Rim Butterfly 20 piece dinnerware set 4 people
Mexican Stoneware Blue Rim Butterfly 20 piece dinnerware set 4 people
$239.02
Time Remaining: 2h
Buy It Now for only: $239.02

Mexican Stoneware Brown Rim Butterfly 5 piece dinnerware set 1 person
Mexican Stoneware Brown Rim Butterfly 5 piece dinnerware set 1 person
$90.62
Time Remaining: 2h 2m
Buy It Now for only: $90.62

Mexican Stoneware Brown Rim Butterfly 20 piece dinnerware set 4 people
Mexican Stoneware Brown Rim Butterfly 20 piece dinnerware set 4 people
$239.02
Time Remaining: 2h 2m
Buy It Now for only: $239.02

Dinnerware Set Stoneware 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Purpl
Dinnerware Set Stoneware 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Purpl
$58.99
Time Remaining: 2h 9m
Buy It Now for only: $58.99

Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer O
Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer O
$96.99
Time Remaining: 2h 11m
Buy It Now for only: $96.99

Dinnerware Set Stoneware 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Taupe
Dinnerware Set Stoneware 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Taupe
$66.99
Time Remaining: 2h 11m
Buy It Now for only: $66.99

Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer G
Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer G
$97.99
Time Remaining: 2h 11m
Buy It Now for only: $97.99

Square Banquet Dinnerware Set Plate Bowl Cup Saucer Shaker Creamer Baker Cassero
Square Banquet Dinnerware Set Plate Bowl Cup Saucer Shaker Creamer Baker Cassero
$97.99
Time Remaining: 2h 11m
Buy It Now for only: $97.99

Stoneware Dinnerware Set 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Red
Stoneware Dinnerware Set 16 Piece Square Plate Cup Bowl Mug Dinner Banquet Red
$25.99
Time Remaining: 2h 11m
Buy It Now for only: $25.99

Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer W
Banquet Dinnerware Set 45 Pcs Square Kitchen Dinner Plate Dish Bowl Cup Saucer W
$96.99
Time Remaining: 2h 13m
Buy It Now for only: $96.99

Dinnerware Dishes Dinner Plates 16 Piece Set Square Stoneware Bowls Kitchen Mugs
Dinnerware Dishes Dinner Plates 16 Piece Set Square Stoneware Bowls Kitchen Mugs
$95.99
Time Remaining: 2h 14m
Buy It Now for only: $95.99

Nikita 28pc White Porcelain Dinnerware Set CHDW28
Nikita 28pc White Porcelain Dinnerware Set CHDW28
$73.95
Time Remaining: 2h 29m
Buy It Now for only: $73.95

Laurie Gates Floral Embossed 16 pc Melamine Dinnerware Set Aqua
Laurie Gates Floral Embossed 16 pc Melamine Dinnerware Set Aqua
$94.13
Time Remaining: 2h 29m
Buy It Now for only: $94.13

Mikasa 16 Piece Dinnerware Set Service for 4 Haley
Mikasa 16 Piece Dinnerware Set Service for 4 Haley
$109.99
Time Remaining: 2h 36m
Buy It Now for only: $109.99

Rachael Ray Dinnerware Round and Square Collection 14 Inch Oval Platter Orange
Rachael Ray Dinnerware Round and Square Collection 14 Inch Oval Platter Orange
$26.17
Time Remaining: 2h 36m
Buy It Now for only: $26.17

Dinnerware 16 Piece Corelle Kobe Square Set Service Plates Kitchen Dishes Nib
Dinnerware 16 Piece Corelle Kobe Square Set Service Plates Kitchen Dishes Nib
$98.97
Time Remaining: 2h 43m
Buy It Now for only: $98.97

Jonathan Adler Ojai Dinnerware 3 serving plates
Jonathan Adler Ojai Dinnerware 3 serving plates
$3.00
Time Remaining: 2h 45m

Pfaltzgraff STUDIO ASTER MUGS Set of 4 Dinnerware Coffee Mug Cup RED FLOWER EUC
Pfaltzgraff STUDIO ASTER MUGS Set of 4 Dinnerware Coffee Mug Cup RED FLOWER EUC
$19.20
Time Remaining: 2h 46m
Buy It Now for only: $19.20

GIBSON CONVERGENCE 16pc DINNERWARE SET SERVICE FOR 4 REACTIVE GLAZE NEW
GIBSON CONVERGENCE 16pc DINNERWARE SET SERVICE FOR 4 REACTIVE GLAZE NEW
$88.80
Time Remaining: 2h 49m
Buy It Now for only: $88.80

Corelle Square Round 16 Piece Dinnerware Set Shadow Iris Service for 4
Corelle Square Round 16 Piece Dinnerware Set Shadow Iris Service for 4
$34.99
Time Remaining: 2h 56m
Buy It Now for only: $34.99

NIB Vintage Corelle Country Cottage 42 Piece Dinnerware Set Service for 8
NIB Vintage Corelle Country Cottage 42 Piece Dinnerware Set Service for 8
$97.49
Time Remaining: 2h 58m
Buy It Now for only: $97.49

NEW TEXAS WESTERN BRANDS DINNERWARE STEAK PLATTER PLATE BRANDED LONGHORN
NEW TEXAS WESTERN BRANDS DINNERWARE STEAK PLATTER PLATE BRANDED LONGHORN
$29.95
Time Remaining: 3h 4m
Buy It Now for only: $29.95

American Atelier Safari 16 Piece Red Giraffe Dinnerware Set New
American Atelier Safari 16 Piece Red Giraffe Dinnerware Set New
$85.13
Time Remaining: 3h 21m
Buy It Now for only: $85.13

AmazonBasics 16 Piece Cafe Stripe Dinnerware Set Service for 4 Blue
AmazonBasics 16 Piece Cafe Stripe Dinnerware Set Service for 4 Blue
$33.66
Time Remaining: 3h 27m
Buy It Now for only: $33.66

Gibson Broadway Dinnerware Service for 16
Gibson Broadway Dinnerware Service for 16
$23.00
Time Remaining: 3h 41m

CORELLE Corelle Square 16 Piece Dinnerware Set Timber Shadows Service for 4
CORELLE Corelle Square 16 Piece Dinnerware Set Timber Shadows Service for 4
$98.21
Time Remaining: 3h 42m
Buy It Now for only: $98.21

Home Essentials SWEET OLIVE FANCY SCROLL DINNERWARE COLLECTION IN AQUA BY HOME E
Home Essentials SWEET OLIVE FANCY SCROLL DINNERWARE COLLECTION IN AQUA BY HOME E
$32.53
Time Remaining: 3h 49m
Buy It Now for only: $32.53

Karim Rashid Porcelain 20 Piece Dinnerware Set
Karim Rashid Porcelain 20 Piece Dinnerware Set
$233.99
Time Remaining: 3h 50m
Buy It Now for only: $233.99

Pfaltzgraff Everyday 48 Piece Dinnerware Set Antigua Blue
Pfaltzgraff Everyday 48 Piece Dinnerware Set Antigua Blue
$199.99
Time Remaining: 3h 50m
Buy It Now for only: $199.99

ImperiaL Candlewick Dinnerware Plates and Water Tumblers
ImperiaL Candlewick Dinnerware Plates and Water Tumblers
$19.99
Time Remaining: 3h 55m
Buy It Now for only: $19.99

Pfaltzgraff Everyday 32 Piece Dinnerware Set Antigua Blue
Pfaltzgraff Everyday 32 Piece Dinnerware Set Antigua Blue
$139.99
Time Remaining: 3h 55m
Buy It Now for only: $139.99

Granada Dinnerware
Granada Dinnerware
$100.00
Time Remaining: 3h 56m

Karim Rashid Dinnerware Dinner Set Service For 4 Black 16 Piece
Karim Rashid Dinnerware Dinner Set Service For 4 Black 16 Piece
$110.23
Time Remaining: 3h 57m
Buy It Now for only: $110.23

Corelle Impressions 16 Piece Dinnerware Set Woodland Leaves Service For 4
Corelle Impressions 16 Piece Dinnerware Set Woodland Leaves Service For 4
$75.77
Time Remaining: 3h 58m
Buy It Now for only: $75.77


Dixie Ultra Disposable Plates, 8 1/2 Inch, 32 Count (Pack of 4) Dixie Ultra Disposable Plates, 8 1/2 Inch, 32 Count (Pack of 4)
Sale Price: $7.76
 
Meal Prep Haven 3 Compartment Stackable Food Containers with Lids, Bento Box / Lunch Containers, Reusable, Set of 7 Meal Prep Haven 3 Compartment Stackable Food Containers with Lids, Bento Box / Lunch Containers, Reusable, Set of 7
Sale Price: $13.88
 
Cuisinart Advantage 12-Piece Knife Set, Bright (6 knives and 6 knife covers) Cuisinart Advantage 12-Piece Knife Set, Bright (6 knives and 6 knife covers)
Sale Price: $16.18
 
Cuisinart 12-Piece Ceramic Coated Color Knife Set with Blade Guards, Multicolored Cuisinart 12-Piece Ceramic Coated Color Knife Set with Blade Guards, Multicolored
Sale Price: $21.99
 
International Silver Arabesque Frost 18/0 Stainless Steel Flatware, 20-Piece Set, Service for 4 (5114325) International Silver Arabesque Frost 18/0 Stainless Steel Flatware, 20-Piece Set, Service for 4 (5114325)
Sale Price: $18.95
 
Govino Wine Glass Flexible Shatterproof Recyclable, Set of 4 Govino Wine Glass Flexible Shatterproof Recyclable, Set of 4
Sale Price: $3.90
 
Smart Diet Control Portion Containers kit 7 Piece with eBook 21 day Meal Planner Complete Guide Leak Proof Microwave and Dishwasher Safe Smart Diet Control Portion Containers kit 7 Piece with eBook 21 day Meal Planner Complete Guide Leak Proof Microwave and Dishwasher Safe
List Price: $24.90
Sale Price: $8.95
You save: $15.95 (64%)
 
Corelle Livingware 16-Piece Dinnerware Set, Winter Frost White , Service for 4 Corelle Livingware 16-Piece Dinnerware Set, Winter Frost White , Service for 4
Sale Price: $23.99
 
Rachael Ray Cucina Hard Porcelain Enamel Nonstick Cookware Set, 12-Piece, Agave Blue Rachael Ray Cucina Hard Porcelain Enamel Nonstick Cookware Set, 12-Piece, Agave Blue
List Price: $300.00
Sale Price: $62.99
You save: $237.01 (79%)
 
Reflections 160-Piece Plastic Silverware Reflections 160-Piece Plastic Silverware
Sale Price: $10.46
 


Boxed Place

Thank You. We hope you found the

Boxed Place

you were looking for.