Polarized filters are like putting polarized sunglasses on your camera. Minimizing reflections may enhance your photos by reducing glare and changing the hue of the body of water. Polarized filters can be turned, or rotated by hand, which changes the polarization effect on your camera lens. When using a photography filter to take a picture of the sky, you can rotate the polarized filter to change the hue or block out fog or haze. For instance, when using filters in photography, you can make the leaves on trees stand out by turning the polarized filter until the leaves appear greener. Your view through the camera lens is the image that is projected onto the film or electronic sensor. For example, when taking a photo of a metallic object, your polarized filter may change the appearance of the reflections, just as polarized sunglasses do.
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One-sentence summary -- Use polarized lens filters to minimize reflections on water. Apply your polarized filter to take pictures of the sky. Attach your polarized filter to your lens to make the colors of your subject more vibrant. Utilize your polarized filter to cut out reflections and glare.

Q: There are many different ways to do the tutorial and many different philosophies about the best way to go about it. You can hide the tutorial within a story about the player character getting training (aka Fable), or you can simply display instructions (aka Mass Effect). You can even try to hide the tutorial altogether blending it seamlessly into the game or display all of the tutorial all at once. No matter what you do, make sure that it feels natural within your game. The world is the environments in which your player will play the game. How expansive will your world be? How challenging? How will you indicate that an area should be explored? That it shouldn't? These are things you'll need to consider. These are the internal rules of the game. You'll want to decide on a rule system and make sure that it's balanced and consistent. The best way to do this is to look at what other games do right or wrong in this area. The levels are the individual chunks of the game, the "episodes" that the player has to get through to make it to the end of the game. The levels should be engaging and just the right amount of challenging. They should also be physically laid out in a way that makes sense. You'll need to design all the content, like the items that can be interacted with, the characters themselves, the environmental items, etc. This can be extremely time consuming so plan ahead! Try to find clever ways to recycle things without making them seem repetitive. The interface includes things like the menus and UI. You want these to be easy to navigate and natural to use. Take cues from your favorite games but remember that generally the simpler the better. If an 8-year-old can figure it out, you're set. Having controls which feel natural are key to players really enjoying and getting the most out of your game. Remember to keep things simple and streamlined. When in doubt, conform to standardized control systems.
A: Design the tutorial. Design the world. Design the mechanics. Design your levels. Design the content. Design the interface. Design the controls.

Article: In Swahili, words are accented on the second-to-last syllable. People won't know what you're saying if you don't get the pronunciation right.  The correct pronunciation is "Nah-koo-PEND-ah." The correct pronunciation of the less colloquial version of "I love you" is "Nee-nah-koo-PEND-ah." There are just five vowels in the Swahili language: a, e, i, o, and u. The vowels are pronounced the same way they are pronounced in Japanese, Italian, and Spanish. This is important to understand if you are using another term of endearment.  For example, "Ninakupenda pia" is pronounced "Nee-nah-koo-PEND-ah pee-ah." A is pronounced "ah" (like "father") E is pronounced "eh" (like "egg") I is pronounced "ee" (like "tree") O is pronounced "oh" (like "oval") U is pronounced "oo" (like "room") There are no silent vowels in Swahili. You must pronounce each vowel in a sentence. There are many consonants in Swahili that are pronounced the same way as they are pronounced in the English language.  The letters "n" and "m" are pronounced the same way they are pronounced in English. The difference is that, in Swahili, sometimes another consonant will follow the "n," and it also must be pronounced. For example, "Ndugu" is a word that means relative. Consonants pronounced the same way they are pronounced in English include the letters p, s, t, v, w, y, and z. Understand how to pronounce consonant pairings. For example, "ch" is pronounced like the "ch" in "chair." And "sh" is pronounced like the "sh" in "shut." "Gh" can be pronounced with a hard "g" as in the English word "garden."
Question: What is a summary of what this article is about?
Pronounce "I love you" right. Learn how to pronounce Swahili vowels. Learn how to pronounce consonants in Swahili.

Article: Toothpaste contains microscopic abrasive particles that can polish and grind down the exterior layers. Again, do not use any fabrics that are coarse or abrasive on their own; they will leave additional scratches in the lens. Do not use circular motions as they can create circular scuff marks. The abrasives in toothpaste are harsher than microfiber cloth alone. Concentrating on a single area for too long could penetrate the exterior layers and damage the interior lens. You can use warm water or glass cleaners, or a combination of the two. Remove any remaining smudge marks from fingers or traces of residue from the toothpaste.
Question: What is a summary of what this article is about?
Apply toothpaste to the scratched lens. Use a piece of soft fabric to rub the toothpaste over the lens. Rub the toothpaste over the lens using a side-to-side motion. Wash off the toothpaste. Perform a final cleaning with a microfiber cloth.