IPB

Welcome Guest ( Log In | Register )


3 Pages V   1 2 3 > Start new topic
Home Built Optical Planetariums
    Topic Title
Replies
Topic Starter
Views
Last Action
No new Pinned
Pinned: Topic has attachmentsBulb Table
Lamp Data
Ken Miller
5,522
5th March 2015 - 10:56 AM
Last post by: Ron Walker
No New Posts Pinned
Pinned: Drill Bit Table for Star Holes
How Low Can You Go!
mrgare5050
4,507
26th August 2008 - 07:33 PM
Last post by: ltkhoover
Forum Topics
No new  
Topic has attachmentsPin Hole Light source via LED  * 12
Cree LEDs, Smartphone lenses and light pipe homogenizers.
Philostopher1
590
Today, 10:02 AM
Last post by: Ron Walker
No new  
Scott T
125
16th February 2018 - 03:13 AM
Last post by: mrgare5050
No new  
Topic has attachmentsFrom: Jamie's Planetarium  * 1234
From Topic ID: 25344
Philostopher1
1,793
11th February 2018 - 04:16 PM
Last post by: mrgare5050
No New Posts  
Who built this?
Home made Star projector UK
Philostopher1
83
5th January 2018 - 11:19 AM
Last post by: Ron Walker
No New Posts  
Who built this?
Home made Star projector UK
Philostopher1
36
3rd January 2018 - 03:55 PM
Last post by: Philostopher1
No New Posts  
Planetarium Orrery Automata
Van Cleef and Arpels Planetarium \ Orrery Watch
Philostopher1
159
16th November 2017 - 03:27 PM
Last post by: Strgzr
No New Posts  
Light Emitting Plasma Sources
Plasma emitters as potential point sources
Philostopher1
173
17th August 2017 - 10:42 AM
Last post by: Ron Walker
No New Posts  
Topic has attachmentsLEDs with hexagonal emitters
no square stars!
Philostopher1
234
10th August 2017 - 12:28 PM
Last post by: Ron Walker
No new  
Ron Walker
51,385
6th July 2017 - 10:57 AM
Last post by: Ron Walker
No New Posts  
heptacloro
444
16th December 2016 - 11:20 AM
Last post by: Ron Walker
No New Posts  
Topic has attachmentswhat is it all about...?
strange fascination about the stars inside a room
Bossard
3,365
2nd December 2016 - 04:04 AM
Last post by: mrgare5050
No New Posts  
Topic has attachmentsNew Planetarium
From starball to operational planetarium
tomoarnold
2,742
29th April 2014 - 03:32 PM
Last post by: moonmagic
No New Posts  
Topic has attachmentsBulb question
what bulb is best for a small projector?
Ron Walker
3,022
21st April 2014 - 11:03 AM
Last post by: Ron Walker
No new  
Charlie Miller
3,952
4th November 2013 - 04:03 PM
Last post by: tomoarnold
No new  
Topic has attachmentsBuilding a home planetarium from scratch  * 123» 6
or, what possessed me to start this
Ron Walker
50,732
9th January 2013 - 10:44 AM
Last post by: Ron Walker
No new  
Ken Miller
22,310
27th December 2012 - 11:13 AM
Last post by: mrgare5050
No New Posts  
Charlie Miller
1,643
24th December 2012 - 10:46 AM
Last post by: Ron Walker
No new  
mrgare5050
238,255
19th October 2012 - 10:06 AM
Last post by: Ron Walker
No new  
Topic has attachmentsGerman youngsters win science fair with planetarium  * 12
homemade optical starball system
albert
14,387
18th August 2012 - 02:45 PM
Last post by: Ron Walker
No new
Topic has attachmentsModifying a Spitz Jr.  * 12
I am still not finding some basic information
flyboybc
13,783
7th August 2012 - 04:21 PM
Last post by: Ron Walker
No new  
Thoughts on building a star-cylinder projector
manuscript under development
Charlie Miller
6,183
20th September 2011 - 12:35 PM
Last post by: Ron Walker
No New Posts  
Martin Lewicki
2,822
19th August 2011 - 02:00 AM
Last post by: Martin Lewicki
No New Posts  
Topic has attachmentsComparing Stinger and Ray-o-Vac light bulbs
Stinger electric specs needed
Charlie Miller
4,361
20th July 2011 - 08:36 PM
Last post by: mrgare5050
No new  
sgrijalva
63,866
29th May 2011 - 12:18 AM
Last post by: Higekita
No New Posts  
davis100
6,971
25th April 2011 - 06:48 AM
Last post by: SteveDurham
No new  
mrgare5050
43,740
22nd April 2011 - 05:02 AM
Last post by: mrgare5050
No New Posts  
Pin Hole Projector Calculations
Planetarium Projector - Pin Hole Calculations
Parag
4,681
24th February 2011 - 10:44 PM
Last post by: Parag
No new  
Tim Mitchell
24,307
25th January 2011 - 03:12 PM
Last post by: mtmannh
3 Pages V   1 2 3 > Start new topic
2 User(s) are browsing this forum (2 Guests and 0 Anonymous Users)
0 Members:

New Posts  New Replies
No New Posts  No New Replies
Hot topic  Hot Topic (New)
No new  Hot Topic (No New) 
Poll  Poll (New)
No new votes  Poll (No New)
Closed  Locked Topic
Moved  Moved Topic
 



Remember these options

Lo-Fi Version   
Time is now: 19th February 2018 - 03:56 PM
Skin by ibskins