0
Why are the slides inserted upside-down into the slide projector to see them right side up?
Wiki User
∙ 14y ago
As light travels through a convex lens (used in most slide projectors), the light and slide image are turned upside-down. Therefore, in order to appear correctly on screen, the image must enter the lens upside-down, which would then be inverted by the lens to appear right-side up.
****
Furthermore, they are reversed left to right. What applies to the vertical holds true for the horizontal. The above holds true for any type of slide projector that performs similar to a Kodak carousel. However, the cube projector (Bell & Howell?) was different because the image bounced off of a mirror before going through the lens. I believe those slides were inserted into the cube right side up, but backwards (left to right), but I'm not sure.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Do they sell fun-slides in stores like walmart?
No you can probally get in the Good Will store. But where i live, it's right acrss from the family library
How to bypass ignition on a motorcycle?
get the key and insert said key to ignition, once inserted turn ignition to the right and BAMM your on your way.
Why do you put slides upside down in a slide projector to see them right side up?
The lenses flip the image (right to left too). You could build a system of mirrors to do the job, but it's cheaper to just load the slides upside down. Note that your eye also flips the image that you see ... but your brain re-flips it so that you see the world right side up. Here's the explanation. Think of the ray of light that goes from the bottom of your slide, through the centre of the lens and on to the screen. Because it goes through the lens centre, where the front and back lens surfaces are parallel it is not deflected (bent) in any way and so just goes straight on. Similarly, the ray of light from the top of your slide going through the lens centre finishes up at the bottom of the screen. The curved surfaces of the lens are there to make sure that all rays from a single point on the slide meet up at the same point on the screen. So what is on the topmost part of your slide appears at the bottom of the screen, and vice versa.
Can you infuse TPN through pulmonary artery catheter?
NO!! A pulmonary artery catheter is a diagnostic tool that is inserted into the right side of the heart. TPN is typically infused through a central venous catheter or a central line due to the thrombosis this concentrated fluid typically causes.
How do you scan 35 mm slides?
Use a Epson RX620 flatbedscanner with builtin slide scanning ability. There are three ways, and that's one of them. They also make "slide scanners." These are flatbeds big enough just to accept a slide, and they've usually just got a little slot in the front to put it in. The best quality comes from drum scanners.
How do you load a PowerPoint presentation into PowerPoint?
Go to the presentation that you want to copy. Click on VIEW then SLIDE SORTER. Click on the Control key and the letter A to select all the slides. RIGHT CLICK and choose copy. Then go to the second presentation, in which you want to include these slides. Click on VIEW then SLIDE SORTER. Left click where you wish the slides to be inserted. right click and choose paste.
Why do sloths hang upsidedown?
Because they cannot hang right side up!
What would one of those 600 glass slide educational sets in original oak cabinet with original projector be worth today?
Depends. If the projector works and the cabinet is in good shape, one could sell in the right market for anywhere from $1200 - $3200. Now, the glass slides can sell for around $10 each but can fetch much more if they are kept as a set.
What is the best Sharp Projector Lamp available?
The most popular and highest rated Sharp Projector Lamp available right now is AN-XR10LP Projector Lamp. They retail for around $300 but are currently on sale for $80 at Amazon.
Can a IUD be insurted right after giving birth?
No, an IUD can't be inserted right after birth, but can be inserted around the 6 week postpartum exam.
How do you connect computer with projector at the same time 2 screen are display 1 Computer Screen 2 Projector Scren?
You can connect one projector by HDMI and the other by VGA. This will allow you to connect two projectors to your computer.
What are the functions of projector?
The function of an overhead projector is to show information on a screen using transparencies. Everything on the transparency had to be first printed backwards so that it would show on the screen in the right order.
How do you apply a template to just a few slides in presentation?
A. Select the slides, then click the template or theme in the Design Gallery. B. Select the slides, then right-click the template or theme in the Design Gallery and choose.
What are the functions of overhead projector?
The function of an overhead projector is to show information on a screen using transparencies. Everything on the transparency had to be first printed backwards so that it would show on the screen in the right order.
How many slides can the Motorola rival do?
The Motorola Rival is a single slide phone. When held Vertically it horizontally slides to the right opening a keypad on the left
How do you put on the mask in spineworld?
You press up,up,down,down,left,right,sideways up, upsidedown left, then a full backflip to put on a mask
Where is the vent inserted in cardiac surgery?
In the right apex of the atrium
