Uploaded June 2015 | Updated September 2026, 1 week ago
122 - Ray Diagrams - Lenses
In this video Paul Andersen explains how ray diagrams for lenses can be used to determine the size and location of a refracted image. Images may be either real or virtual images. Ray diagrams for converging and diverging lenses are included.
Simbucket Simulation - simbucket.com/simulation/lens-and-mirror-lab
Do you speak another language? Help me translate my videos:
bozemanscience.com/translations
Music Attribution
Title: String Theory
Artist: Herman Jolly
sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
“Hyperopia.” Wikipedia, the Free Encyclopedia, April 12, 2015. en.wikipedia.org/w/index.php?title=Hyperopia&oldid=656178819.
I.S, Gumenyuk. English: Correction of Myopia with Lens, April 3, 2014. Original artwork made specially for Wikipedia. commons.wikimedia.org/wiki/File:Myopia_color.png.
USA, Quinn Dombrowski from Berkeley. Marching Band, June 30, 2013. Marching band Uploaded by Anastasiarasputin. commons.wikimedia.org/wiki/File:Marching_band_(9181860026).jpg.
122 - Ray Diagrams - Lenses
In this video Paul Andersen explains how ray diagrams for lenses can be used to determine the size and location of a refracted image. Images may be either real or virtual images. Ray diagrams for converging and diverging lenses are included.
Simbucket Simulation - simbucket.com/simulation/lens-and-mirror-lab
Do you speak another language? Help me translate my videos:
bozemanscience.com/translations
Music Attribution
Title: String Theory
Artist: Herman Jolly
sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
“Hyperopia.” Wikipedia, the Free Encyclopedia, April 12, 2015. en.wikipedia.org/w/index.php?title=Hyperopia&oldid=656178819.
I.S, Gumenyuk. English: Correction of Myopia with Lens, April 3, 2014. Original artwork made specially for Wikipedia. commons.wikimedia.org/wiki/File:Myopia_color.png.
USA, Quinn Dombrowski from Berkeley. Marching Band, June 30, 2013. Marching band Uploaded by Anastasiarasputin. commons.wikimedia.org/wiki/File:Marching_band_(9181860026).jpg.






![Students t-test
Excel file: https://dl.dropboxusercontent.com/u/561402/TTEST.xls
In this video Paul Andersen explains how to run the students t-test on a set of data. He starts by explaining conceptually how a t-value can be used to determine the statistical difference between two samples. He then shows you how to use a t-test to test the null hypothesis. He finally gives you a separate data set that can be used to practice running the test.
Do you speak another language? Help me translate my videos:
http://www.bozemanscience.com/translations/
Music Attribution
Intro
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/
Creative Commons Atribution License
Outro
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
1.3.6.7.2. Critical Values of the Student’s-t Distribution. (n.d.). Retrieved April 12, 2016, from http://www.itl.nist.gov/div898/handbook/eda/section3/eda3672.htm
File:Hordeum-barley.jpg - Wikimedia Commons. (n.d.). Retrieved April 11, 2016, from https://commons.wikimedia.org/wiki/File:Hordeum-barley.jpg
Keinänen, S. (2005). English: Guinness for strenght. Retrieved from https://commons.wikimedia.org/wiki/File:Guinness.jpg
Kirton, L. (2007). English: Footpath through barley field. A well defined and well used footpath through the fields at Nuthall. Retrieved from https://commons.wikimedia.org/wiki/File:Footpath_through_barley_field geograph.org.uk 451384.jpg
pl.wikipedia, U. W. on. ([object HTMLTableCellElement]). English: William Sealy Gosset, known as “Student”, British statistician. Picture taken in 1908. Retrieved from https://commons.wikimedia.org/wiki/File:William_Sealy_Gosset.jpg
The T-Test. (n.d.). Retrieved April 12, 2016, from http://www.socialresearchmethods.net/kb/stat_t.php Students t-test](https://i.ytimg.com/vi/pTmLQvMM-1M/mqdefault.jpg)



