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If commercially viable, you may apply engobe prior to glazing in sanitary wares to make the wares free from pinholes.
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How does a Pinhole camera work?
A pinhole camera is the most simple form of Photography and requires practically no knowledge of photography to build a pinhole camera and capture an image using it. The basic principle behind a pinhole camera is the light enters through the pinhole at the front of the container (eg. a shoebox) travels through the light proof box and hits the photographic paper at the back of the box. The paper reacts to the light and where the light falls it is exposed (dark) and where there is no light the paper remains light. As you will be able to see after the image has been developed; the image produced will be a negative of the actual image. The image will also be upside-down due to the way in which the light enters the box. Then all that remains is to develop the photographic paper as you would normally. You will not see anything until you start to develop the paper. The paper will still appear white. Remember: - Light only travels in straight lines, - The box will need to be light proof apart from the pinhole at the front, - The pinhole cannot be too small, it can quite easily be too large, - Only place the paper in the box and remove it from the box in a darkroom. - Anything can be turned into a pinhole camera! Even rooms... Suggestions: - An old shoebox works well, as does a film canister. - Use black and white paper, it is easier to develop and far simpler to start with. Maybe experiment with colour afterwards. - You will need to use trial and error to find the correct exposure time. eg, if the image appears too dark decrease the exposure time, if it appears too light increase the exposure time. Have fun, pinhole camera's are great to make and a good introduction into photography. Alex Apps **************** - the aperture should be about 1/100th of the distance to the image plane visit http://en.wikipedia.org/wiki/Pinhole_camera for a fascinating story about the world's largest pinhole camera Micron
What part of speech is hide?
Hiding is a verb; hide, hides, hiding, or hidden. Example sentence: My mom was hiding the fresh baked cookies but I found them with my nose.
Which of Picasso's paintings did he hide Marie Therese Walters initials in?
He didn't hide her initials in his paintings, more or less, only one.
Why do you hide if there is an earthquake?
The reason why you hide during an earthquake is because the movement of the earth can cause glass to shatter, and large objects to fall. If you hide (say under a desk or a door way) you are able to protect yourself from falling debra and shattering glass
How do you hide Pie Filling in Hobowars?
hahha
What is the future tense of hide?
The future tense of hide is will hide.
How can differentiate Cow hide and Sheep hide?
Cow hide is thicker than sheep hide.
What is hide?
to hide is to not be seen.
Why people say you cannt run but can hide can run but you cannt hide or is it you cannt hide but can run or is it you cannt run and hide or is it can run and hide what?
it's you can run but you can't hide, and that reminds me of a FNAF song and I'm sad
What is the best leather for work gloves?
Buffalo hide is a bit stronger than cow hide. Sometimes deer hide or lamb hide is used but they are not as tough as cow hide.
What is hide made of?
Cow hide.
What is elephant hide?
The hide of an elephant.
What is a synonym for stowaway?
hide and hide out
What is hide in latin?
Celare - to hide.
Is hide an adverb?
no, it is a verb. "secretly" might be a good adverb with a similar meaning.
Where do young fish hide in an esturary?
they dont really hide.....but if they hide they will probably be in rapids.
Where do you hide while playing hide and seek?
You hide so that the seeker cannot find you.
