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Homework Help!
#41
Here you go !

These are just recommendations, so pick and choose what you like.

The Ad-mirror-able [Oh damn he went there] History of Lenses

How have lenses been used to change the world?

Lenses have played an instrumental role in the advancement of society. In this article, we will highlight three select examples (though if the topic interests you, we encourage you to look more into it).

To start things off, let’s draw attention to something [ ‘a little’ would have required the comparative ‘closer’] close to home. I’m talking about corrective lenses. I’m sure some of those who are reading this have them and can tell you it would be difficult to read without their help. Corrective lenses come in many forms : Contact lenses, glasses, and intraocular lenses, which are surgically implanted, just to name a few. Corrective lenses have changed the world by letting us see it in a way that was previously impossible.

Have you ever just stared up into the sky and wondered? Well, the Netherlands came through when three 17th century men, Hans Lippershey, Zacharias Janssen, and Jacob Metius of Alkmaar, invented the refracting telescope. Galileo Galilei soon after improved upon their design. When man first gazed upon the extraterrestrial canvas of space, his desire to explore and understand it was overwhelming. We thought that Earth was the center of everything, the world was flat, and the sun rotated around us. With telescopes, we could now gaze upon the stars much like those before us, though with an unprecedented level of clarity. This allowed us to dispel our archaic misconceptions and again fuelled our desire to reach beyond the cradle of humanity. Telescopes, and by extension lenses, have changed the world by pushing us beyond it.

Finally, we’re closing off with something close to my heart. As a photographer, cameras are part of my profession and my life. These devices utilize lenses for various levels of exposure and zoom, and act as a fundamental part of the system. You can find them on phones, professional rigs, handheld gaming devices, and computers. History, family, wars, art, and everything in between have been encapsulated into picture format since around the Civil War of the United States. Cameras, and by extension lenses, have changed the world by recording it.





Image Portfolio

[Image: mEl3bpw.jpg]

The above image demonstrates refraction. Refraction is the bending of light. This image demonstrates refraction via the use of a lens [Could merge into first sentence?]. If you look at the tomato or coconut husk, the parts outside of the mirror do not match up. That is what refraction looks like. The image was created at home using a camera and lens.

[Image: JEnD4nC.jpg]

The image above demonstrates real image reflection.
You are at, or beyond, the focal point. The image therefore appears inverted. It is a “real” image.
This image was created in a Cinco Ranch School Lab Room using a camera and lens.

[Image: AeF1SoT.jpg]

The image above displays Virtual Image Reflection. It is upright and appears before the focal point, thereby dictating that it is virtual. This image was taken at my home.
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Messages In This Thread
Homework Help! - by Ghost Nappa - 08-19-2013, 07:11 PM
RE: Homework Help! - by gamemaster1991 - 08-19-2013, 07:33 PM
RE: Homework Help! - by Psychospacecow - 08-19-2013, 11:10 PM
RE: Homework Help! - by MexicanAnime - 08-19-2013, 11:13 PM
RE: Homework Help! - by gamemaster1991 - 08-20-2013, 01:45 AM
RE: Homework Help! - by Ghost Nappa - 08-20-2013, 09:24 PM
RE: Homework Help! - by Psychospacecow - 08-20-2013, 09:44 PM
RE: Homework Help! - by Ghost Nappa - 08-21-2013, 09:01 PM
RE: Homework Help! - by Psychospacecow - 08-21-2013, 09:22 PM
RE: Homework Help! - by Ghost Nappa - 08-24-2013, 03:10 PM
RE: Homework Help! - by Psychospacecow - 08-24-2013, 03:56 PM
RE: Homework Help! - by Ghost Nappa - 08-24-2013, 09:18 PM
RE: Homework Help! - by gamemaster1991 - 08-24-2013, 09:43 PM
RE: Homework Help! - by Psychospacecow - 08-31-2013, 04:11 PM
RE: Homework Help! - by Petie - 08-31-2013, 05:32 PM
RE: Homework Help! - by Psychospacecow - 08-31-2013, 10:03 PM
RE: Homework Help! - by Ghost Nappa - 09-02-2013, 09:46 PM
RE: Homework Help! - by Psychospacecow - 09-02-2013, 10:11 PM
RE: Homework Help! - by Ghost Nappa - 09-03-2013, 09:09 PM
RE: Homework Help! - by Petie - 09-03-2013, 09:12 PM
RE: Homework Help! - by gamemaster1991 - 10-08-2013, 12:55 PM
RE: Homework Help! - by Combat Lobster - 10-08-2013, 01:54 PM
RE: Homework Help! - by Lazlo Falconi - 10-09-2013, 12:05 PM
RE: Homework Help! - by Ghost Nappa - 10-10-2013, 07:04 PM
RE: Homework Help! - by Psychospacecow - 10-10-2013, 07:21 PM
RE: Homework Help! - by Psychospacecow - 10-28-2013, 07:21 PM
RE: Homework Help! - by Petie - 10-28-2013, 07:33 PM
RE: Homework Help! - by Psychospacecow - 10-28-2013, 07:50 PM
RE: Homework Help! - by Petie - 10-28-2013, 07:54 PM
RE: Homework Help! - by Psychospacecow - 10-28-2013, 07:58 PM
RE: Homework Help! - by Petie - 10-28-2013, 08:05 PM
RE: Homework Help! - by Psychospacecow - 10-28-2013, 08:08 PM
RE: Homework Help! - by Ghost Nappa - 12-09-2013, 07:41 PM
RE: Homework Help! - by Psychospacecow - 12-10-2013, 08:45 PM
RE: Homework Help! - by Arjahn - 12-16-2013, 09:43 PM
RE: Homework Help! - by Psychospacecow - 12-17-2013, 07:55 AM
RE: Homework Help! - by Psychospacecow - 03-21-2014, 12:19 AM
RE: Homework Help! - by Psychospacecow - 05-10-2014, 05:28 PM
RE: Homework Help! - by SERIOUSLY THOUGH - 05-10-2014, 07:46 PM
RE: Homework Help! - by Psychospacecow - 05-10-2014, 08:12 PM
RE: Homework Help! - by SERIOUSLY THOUGH - 05-11-2014, 06:24 PM
RE: Homework Help! - by Psychospacecow - 05-11-2014, 06:47 PM
RE: Homework Help! - by Psychospacecow - 05-26-2014, 08:18 PM
RE: Homework Help! - by CosmykTheDolfyn - 05-26-2014, 09:15 PM
RE: Homework Help! - by Psychospacecow - 05-26-2014, 10:13 PM

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