I've got a video that I want to share.It is for question 2.The answer is chemical process.This video is an example of chemical reaction: http://www.youtube.com/watch?v=qks758EhRJA
Here is another useful website on Question 1. http://en.wikipedia.org/wiki/Scotchlite
It seems that there is a base (usually PVC) which is densely packed with microscropic glass beads which collect light from any angle and reflect it back in the direction it came from. Some glass beads (e.g. Scrotchlite's) are also painted with a metallic reflective layer on its rear half, enhancing its retroreflective properties.
Hey guys,
ReplyDeleteI have an interesting website I want to share with you!
-Marc
Tpe it into your search bar!
ReplyDeletehttp://www.bbc.co.uk/schools/scienceclips/ages/10_11/science_10_11.shtml
You mean: Type, not tpe
DeleteHey guys,
ReplyDeleteI've got a website to share:
http://www.faqs.org/patents/app/20090152498
Which question is this website answering?
DeleteQ1, I guess
DeleteYo!
ReplyDeleteI see a website that might be useful:
http://www.colebrothers.com/articles/reflective_tape.html
Yo!
ReplyDeleteI've got a website:
http://www.loxytapes.com/Articles/how-is-reflective-tape-made
Hey! I've got a website that might be useful:
ReplyDeletehttp://www.slideshare.net/AmrHassaan/light-presentation-3591578
I've got a video that I want to share.It is for question 2.The answer is chemical process.This video is an example of chemical reaction:
ReplyDeletehttp://www.youtube.com/watch?v=qks758EhRJA
Hey dude!
ReplyDeleteI've got a website. It is abt Q2. You will have to skip to 4 min 30 secs on the video
http://www.youtube.com/watch?v=9BLgvVFJCFw
Yo!
ReplyDeleteI see something that might be useful.
Q: How do glow in the dark objects glow?
A:They absorb light from before and then when it is dark they glow the absorbed light
Hey there,
ReplyDeleteI think white and green glows in the dark, based on my research.
This website might be useful for our project:
ReplyDeletehttp://www.reflectivesafetyvest.com/
It is about question 3, the easily-seen colours are yellow, chartreuse, lime and orange.
Here is another useful website on Question 1.
ReplyDeletehttp://en.wikipedia.org/wiki/Scotchlite
It seems that there is a base (usually PVC) which is densely packed with microscropic glass beads which collect light from any angle and reflect it back in the direction it came from. Some glass beads (e.g. Scrotchlite's) are also painted with a metallic reflective layer on its rear half, enhancing its retroreflective properties.