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Mercury diffusion pumps with hexapole magnets from Hydrogen Maser of Norman Ramsey

Physical Description:
steel; iron; copper (overall material)
steel (frame material)
iron; copper (magnet material)
Measurements:
frame only: 112 cm x 122.5 cm x 56 cm; 44 3/32 in x 48 7/32 in x 22 1/16 in
overall (height x width x depth): 157 cm x 130 cm x 56 cm; 61 13/16 in x 51 3/16 in x 22 1/16 in
Object Name:
pumps, diffusion, mercury
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.01
Catalog number:
1980.0594.01.01
Accession number:
1980.0594
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-ab0d-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1879020
Online Media:

Microwave cavity from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
fused quartz; silver (overall material)
Measurements:
cavity only: 33.3 cm x 33.1 cm; 13 1/8 in x 13 1/32 in
overall (length x diam.): 100 cm x 33.1 cm; 39 3/8 in x 13 1/32 in
Object Name:
hydrogen maser, cavity
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.02
Catalog number:
1980.0594.01.02
Accession number:
1980.0594
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-ab0e-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1879022
Online Media:

Frame with Helmholtz coils attached from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
steel; plywood, wire (overall material)
plywood (rings for attached coils material)
steel (frame material)
wire (attached coils material)
Measurements:
frame only: 119.5 cm x 69 cm x 49 cm; 47 1/16 in x 27 5/32 in x 19 9/32 in
overall (height x width x depth): 192 cm x 122 cm x 122 in; 75 19/32 in x 48 1/32 in x 309.88 cm
Object Name:
hydrogen maser, coils
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960.
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.03
Catalog number:
1980.0594.01.03
Accession number:
1980.0594
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-ab0f-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1879023
Online Media:

Hydrogen Dissociator Tube from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
glass (overall material)
Measurements:
overall (height x width x depth): 8 cm x 100 cm x 20 cm; 3 5/32 in x 39 3/8 in x 7 7/8 in
Object Name:
hydrogen maser, part
Dissociator, hydrogen
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.04
Catalog number:
1980.0594.01.04
Accession number:
1980.0594
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-ab11-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1879026
Online Media:

Mended bulb for hydrogen dissociator tube from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
glass (overall material)
Measurements:
overall (height x width x depth): 8 cm x 40 cm x 8 cm; 3 5/32 in x 15 3/4 in x 3 5/32 in
Object Name:
bulb, hydrogen maser
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.11
Catalog number:
1980.0594.01.11
Accession number:
1980.0594
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b3-9de9-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_1879028

Left-hand vacuum gauge (towards dissociator tube) from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
glass (overall material)
Measurements:
overall (height x width x depth): 15 cm x 10 cm x 15 cm; 5 29/32 in x 3 15/16 in x 5 29/32 in
Object Name:
gauge, vacuum
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960.
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.05
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a6314b46-0906-34db-e053-15f76fa03b61
EDAN-URL:
edanmdm:nmah_1976657

Right-hand vacuum gauge (towards microwave cavity) from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
glass (overall material)
Measurements:
overall (height x width x depth): 12 cm x 5 cm x 10 cm; 4 23/32 in x 1 31/32 in x 3 15/16 in
Object Name:
gauge, vacuum
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.06
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a64321f8-6ac2-2238-e053-15f76fa019bf
EDAN-URL:
edanmdm:nmah_1976659

Bolt and nut sets (4) for connecting collar at left end of beam tube -.01.02 to diffusion pump in main steel frame from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
steel (overall material)
Measurements:
overall (height x width x depth): 8 cm x 1 cm x 1 cm; 3 5/32 in x 13/32 in x 13/32 in
Object Name:
bolt and nut sets
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.07
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a64321f8-6ac4-2238-e053-15f76fa019bf
EDAN-URL:
edanmdm:nmah_1976661

Allen bolt and nut sets (2) from flange of hydrogen dissociator assembly -.01.04 from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
steel (overall material)
Measurements:
overall (height x width x depth): 8 cm x 1 cm x 1 cm; 3 5/32 in x 13/32 in x 13/32 in
Object Name:
bolt and nut sets
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.08
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a64321f8-6ac6-2238-e053-15f76fa019bf
EDAN-URL:
edanmdm:nmah_1976663

Bolt and nut sets (8) for attaching the left vacuum gauge -.01.05 to the left diffusion pump from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
steel (overall material)
Measurements:
overall (height x width x depth): 3 cm x 1 cm x 1 cm; 1 3/16 in x 13/32 in x 13/32 in
Object Name:
bolt and nut sets
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.09
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a64321f8-6ac8-2238-e053-15f76fa019bf
EDAN-URL:
edanmdm:nmah_1976665

Bolt and nut sets (4) for attaching the right vacuum gauge -.01.06 to the right diffusion pump from Hydrogen Maser of Norman Ramsey

Maker:
Ramsey, Norman F.  Search this
Physical Description:
steel (overall material)
Measurements:
overall (height x width x depth): 3 cm x 1 cm x 1 cm; 1 3/16 in x 13/32 in x 13/32 in
Object Name:
bolt and nut sets
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University.
ID Number:
1980.0594.01.10
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng4a64321f8-6aca-2238-e053-15f76fa019bf
EDAN-URL:
edanmdm:nmah_1976667

Hydrogen Maser of Norman Ramsey

Maker:
Norman F. Ramsey  Search this
Physical Description:
glass; steel; metal; wire (overall material)
Measurements:
overall (height x width x depth): 192 cm x 312 cm x 122 cm; 75 19/32 in x 122 27/32 in x 48 1/32 in
Object Name:
Maser, Hydrogen
Place made:
United States: Massachusetts, Cambridge, Harvard University
Date made:
1959-1960
Subject:
Science & Scientific Instruments  Search this
Modern Physics  Search this
Credit Line:
Gift of Harvard University
ID Number:
1980.0594.01
Catalog number:
1980.0594.01
Accession number:
1980.0594
Patent number:
3,255,423
See more items in:
Medicine and Science: Modern Physics
Science & Mathematics
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746b2-772b-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_714239
Online Media:

The Sun in a New Light

Creator:
National Air and Space Museum  Search this
Type:
Lectures
YouTube Videos
Uploaded:
2020-02-13T16:19:08.000Z
YouTube Category:
Education  Search this
Topic:
Aeronautics;Flight;Space Sciences  Search this
See more by:
airandspace
Data Source:
National Air and Space Museum
YouTube Channel:
airandspace
EDAN-URL:
edanmdm:yt_Nmiw3gzWIf8

Steve Harris, "Electromagnetically Induced Transparency with Matter Waves"

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2011-08-03T18:50:37.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
ITAMPhysics
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
ITAMPhysics
EDAN-URL:
edanmdm:yt_iqQCI-VfnH0

Coloring the Universe - Part 2

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2015-08-12T19:35:41.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_1cFTO125qoM

A Tour of GRB 150101B

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2018-10-19T18:03:43.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_NCVsx6drHrM

A Tour of Cygnus A

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2019-01-09T22:14:22.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_NP3OeOgemiQ

Tour: M87 in Different Wavelengths of Light

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2021-04-14T13:00:11.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_R9EsLjLUVzk

Quick Look: NASA's Chandra Opens Treasure Trove of Cosmic Delights

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2020-09-02T19:00:03.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_SRaeVBgE3dQ

A Tour of NASA's Chandra X-ray Observatory Celebrates Its 20th Anniversary

Creator:
Smithsonian Astrophysical Observatory  Search this
Type:
YouTube Videos
Uploaded:
2019-07-23T13:00:02.000Z
YouTube Category:
Science & Technology  Search this
Topic:
Astronomy  Search this
See more by:
cxcpub
Data Source:
Smithsonian Astrophysical Observatory
YouTube Channel:
cxcpub
EDAN-URL:
edanmdm:yt_aJU5RDuSmJ0

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