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†...MY PROFILE...†



MY PIC
/*HELLO. IM ARVIN SHANE R. ACANTILADOFROM III- LINNAEUS.
/*II-EDISON VICE PRESIDENT
/*I-DILIGENCE PEACE OFFICER
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/*IM PSYCHO OVER PHYSICS
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/*HATES WAITING
/*HATES KILLJOYS
THIS IS MY BLOG FOR PHYSICS.
IT WILL SERVE AS A DIGITAL DIARY OR PORTFOLIO.


















†...WISHING TO THE STARS...†

I WISH PHYSICS WILL BE A FUN SUBJECT.
AND I WISH I CAN FULFILL ALL MY RESPONSIBILITIES IN THIS SUBJECT.
YOU MIGHT CONSIDER SEEING MY BLOG WITH A LITTLE LESS POSTS BECAUSE I'VE JUST STARTED THIS DAY.
AND I REALLY DO HAVE DIFFICULTIES REGARDING THIS SITE.
THANK YOU FOR YOUR CONSIDERATION.
AND EXPECT SOME FOLLOWING POSTS IN THE LATER DAYS.
THANK YOU.






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--June 2007
--July 2007
--August 2007


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/*MYSELF FOR BEING ABLE TO CREATE THIS LAYOUT. HIHI. XD
/*ADOBE PHOTOSHOP CS2 DAHIL DITO AY NAGAWA KO UNG BG KO
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/*MR. MOSES KING MENDOZA DAHIL XA ANG NAGPAGAWA NITO
†...Friday, August 3, 2007...†

Difference Between a Human Eye and a Camera

Human eyes and cameras have similarities. For example, they have similar sturctures.

1. Both eyes and cameras have similar openings for the entrance of light. Aperture for the cameras and pupil for the eyes.
2. Both have a control center for the entrance of light. Diaphragm controls size of the aperture [camera], iris muscles control the size of the pupil [eye].
3. Both have light refractors. A glass biconvex lens for the camera, mainly cornea and lens for the eye.
4. Both have an object that helps form the image. Photosensitive chemicals on the films for the camera, and photoreceptors in the retina for the eyes.
5. Both have structures that absorbs excessive light. Dark internal surface for the camera, pigmented, dark choroid for the eyes.
6. They differ in focusing mechanisms. For the camera, it changes the distance of the film from the lens while in the eyes it changes the focal length of the lens with the use of ciliary muscles.



†...BEWARE...†
10:33 PM

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Ray Diagram For A Concave Lens

1. Construct a ray that travels parallel to the axis and after going through the lens, extend it passing through the focal point on the side where the onject is found.
2. Construct a ray that passes directly to the center of the lens.
3. Construct a ray passing through the focal point and then travels paralles to the axis to the side where the object is found.

*Unlike converging lens case, the rays do not intersect. Instead we assume the image to be at an imaginary point which is derived by extending the rays and then taking the intersections of the extended rays.





†...BEWARE...†
10:18 PM

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Ray Diagram For Convex Lens


1. First, draw a ray parallel to the optic axis, then extend it to the focal point at the back of the lens.
2. Second, draw a chief ray that directly points in the center of the lens.
3. You can even check your work, by creating a lens passing through the focal point in the same side as that of the object. After it reaches the optic axis, you should extend it parallel to the optic axis of the other side.






†...BEWARE...†
9:39 PM

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Steps in Getting the Resultant Vector Using the Graphical Method

  1. Firstly , you should choose a right scale and coordinate system that you will use. As for the scale, choose the one that can easily be converted.
  2. Draw the first vector starting from the origin.
  3. Then, draw the second vector starting from the head of the first vector. Repeat this instuction if you are to draw several vectors. Be noted that you should always follow that head-to-tail way of drawing vectors.
  4. After drawing the needed vectors, draw another vector that will coonect the tail of the first vector to the head of the last vector drawn. The new vector is the resultant of the given vectors.
*In creating this stuff, you should always be accurate in measuring to attain precise results.*



†...BEWARE...†
9:32 PM