As we can see, they fly straight, cut objects clean through, and intensely heat surfaces. However, some of you might state that Penny's lasers show an intense amount of force. That is true. However, as described before, force is no longer a disqualifying factor for VS Wiki. However, to those who still may have issues with it, I point to this article.
Two forces coming from a light beam—one based on momentum transfer, the other on thermal effects—drive a tiny gold plate to move in opposite directions.
physics.aps.org
"Light carries momentum that can push on an object, but it can also move an object through thermal forces. A new experiment combines both of these effects to manipulate a tiny gold plate that can slide along a tapered optical fiber. The momentum-transfer and thermal forces act in opposite directions, allowing the plate to be driven first one way and then the other."
This article, which was published in a peer-reviewed physics journal, states that light, while not having mass, does have momentum, thus having force.
However, some may state the force produced in the experiment used in the article was minuscule and would not scale to real life. For this accusation, I present this interview with Dr. Anna Lombardi, a professor at the University of Cambridge.
Why don't you get thrown backwards when you switch on your torch? Kerstin Göpfrich found out from Dr Anna Lombardi.
www.thenakedscientists.com
Kerstin - The theory tell us that light does have a little bit of a push but I certainly cannot feel it when I switch on my torch. What's the point of all the theory then?
Anna - While the push of light is so tiny that you don't feel it in everyday life, we can observe it at the nanoscale in the world of the infinitely small. Arthur Ashkin, a scientist working at the Bell Labs in the seventies demonstrated that nanometer and micron sized particles can be accelerated, trapped and manipulated by radiation pressure of a highly focused laser beam.
Nowadays, scientists use light quite literally like optical tweezers to manipulate objects from cells to single atoms
Kirsten - Does that mean that we just need a superpower torch to move the big stuff?
Anna - If as a light source we don't limit ourselves to a simple torch, but we consider the Sun, then the radiation pressure exerted is strong enough to push spacecrafts and even asteroids from their path.
With this statement, we can see that sufficient radiation pressure in space can push large and heavy objects such spacecraft and even asteroids out from their path. Thus, this proves that ,with a strong enough light source, massive objects can be forced back. Before this, Professor Lombardi states:
Anna - The higher the frequency of the light, the larger its momentum and, therefore, a stronger force it can exert. This means that blue light will push you stronger than red light.
Angels guard the Sephiroth while being outside it?
