1,855 views

2:17

Watch
- Search Videos
  
  Advanced search »
- Submit a New Video
Discuss
About
- Try clicking on the various channels to see videos posted to that channel - if you're into music you can click the Music channel to get more music sifts - go on and explore! Use the "hotness" when you have opened the channel link to get videos that have gotten a lot of votes, or use "newness" to have a look at the new sifts.
  When browsing sifts you like, have a look at the Related Posts list to see other related videos, click the tags under the video title to see more sifts tagged with the same tags or have a look at other sifts from the same user in the More Posts By list. If the sifted video is in a play list, have a look at the play list to see other interesting videos the Sift users have linked together.
  Enter the Sift Lounge to chat with online sifters about anything and everything, or read interesting posts in the Sift Talk forum.
  The Top New Videos list is always full of interesting, current videos. It is always recommended that you have a look through the Top New Videos, but also have a look at these:
  - Upcoming Unsifted Videos - active video submissions that neither are published to the front page nor archived to the submitter's personal queue
- Have you seen a really funny, surprising, scary, interesting, cute or in any other way extra good quality video?
  Post and share it here - VideoSift is the best video aggregator on the Web, where we share, discuss, promote, and interact with the best videos out there on the web. Post it here, and share it with the large community of video-interested users. And - you are guaranteed to find more very good videos here already!
  Mind you, we only share videos you discover that someone else has made; if you "self link," by posting a video you have made, have posted or have interests in, you risk the ban hammer - read the posting guidelines before posting. The sift is NOT for promoting your own videos - it is for sharing videos others have made.
  Submit a Video Now »
Login

What a 'real image' from a concave mirror can do is demoed

submitted by eric3579

1 decade 5 months 1 week ago

A guide demonstrates what you can do with a real image from a giant concave mirror at the San Francisco Exploratorium.

9 Comments

I was a bit disappointed with the second trick and the reaction to the second trick. "Hey, you see how light reflects from the mirror to where things are? Look, i can use this torch to make light reflect from the mirror to where things are!"

Wow, I think you are really missing out like people who can't see the image in "magic eye" stereograms. I thought it was a pretty killer effect.

The awesomesauce isn't just from where the light is landing, but that it looks like there are two of him and the other one is leaning forward out of the mirror into 3D space to shine the light into her mouth.

*quality

I was a bit disappointed with the second trick and the reaction to the second trick. "Hey, you see how light reflects from the mirror to where things are? Look, i can use this torch to make light reflect from the mirror to where things are!"

Boosting this quality contribution up in the Hot Listing - declared quality by lucky760.

Hmm.
Yeah, I don't get it either, do you have to be there in person to get the effect? Isn't this what mirrors are supposed to do?

A flat mirror couldn't do what you see there. Since light or sound spreads by the inverse square law, the light placed on someone's mouth in a flat mirror will spread out rather than focus. Try it, to really get the experience.

They have one at the Corning Museum of Glass in upstate NY. I took my nieces to it last summer and they had quite a bit of fun.

Half the fun of this video is the people's reactions.

mushrooms enhance the Owens Corning museum, btw.....

Discuss...

🗨️ Emojis & HTML

Enable JavaScript to submit a comment.

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.