Unanswered Questions on Light: Control & Visibility

In summary, the conversation is about controlling the length of a light beam and viable forms of light in daylight without the use of a haze machine. It is mentioned that light travels in a straight line and needs to be reflected in order to be seen, which can be achieved with dust or smoke. The conversation also briefly touches on the idea of building a lightsabre.
  • #1
julez520
2
0
Hi

I have to question which i can not find any information on

!st question: is it possible to control the length of a light beam

2nd question: is there any form of light which are viable in daylight and air without the use of a haze machine

or is the plasma phenomenon the only visible light

Thanks

Julian
 
Science news on Phys.org
  • #2
You can control the length of a light beam by putting something in the way to block it!
You can't preset a light beam to only travel X metres.

You can only see light if enters your eye. Light travels in a straight line so the only way to see a light beam is to reflect light out of the beam into your eye (assuming you aren't looking directly into the source!) this is what dust or smoke does.
 
  • #3
Someone wants to build a lightsabre, huh? ;)
 
  • #4
Thanks for the reply s so far

and no light sabres lol
 

Related to Unanswered Questions on Light: Control & Visibility

What is the purpose of studying unanswered questions on light?

The purpose of studying unanswered questions on light is to expand our understanding of this fundamental concept in physics and potentially unlock new technologies and discoveries. By exploring these questions, scientists can push the boundaries of knowledge and uncover new insights into the nature of light.

What are some current unanswered questions related to controlling light?

Some current unanswered questions related to controlling light include: How can we manipulate the speed of light? Can we create materials that can bend light around objects? How can we control the direction of light without using traditional lenses? How can we store and retrieve information encoded in light?

What do we currently know about light visibility?

We currently know that light is visible to the human eye within a certain range of wavelengths, known as the visible spectrum. We also know that light can be reflected, refracted, and absorbed, and that its behavior can be described by the laws of optics. However, there are still many unanswered questions about the nature of light visibility, such as how our eyes perceive color and how different light sources affect our perception.

How do scientists study unanswered questions about light?

Scientists use a variety of methods to study unanswered questions about light, including experimental research, theoretical models, and computer simulations. They also collaborate with other researchers and share their findings through publications and conferences. Additionally, advancements in technology, such as advanced imaging techniques, allow scientists to study light in new and innovative ways.

Why are unanswered questions on light important?

Unanswered questions on light are important because light is a fundamental aspect of our universe and has countless practical applications in our daily lives. By seeking answers to these questions, we can not only deepen our understanding of light, but also potentially discover new technologies and improve our quality of life. Additionally, the pursuit of unanswered questions on light drives scientific progress and encourages critical thinking and innovation.

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