About the movie "Independence Day" and high-power lasers

About the movie "Independence Day" and high-power lasers

1) If the laser-ray would hit a tall building. the heat effect can cause an extremely powerful explosion.

Have you seen the movie "Independence Day", where the giant spaceships come from the universe and almost destroy our civilization? One of the most interesting things, that is in this movie is the laser-weapon, which destroys entire cities, and the thing is that those giant fictive spacecraft would need their size because that is suppressing the thermal effect of the powerful lasers. And if the size of those crafts would be too small, the lasers would melt them. 

The thing is that laser weapons would be most effective if it would be targeted in the tall building at the first. The high-power laser-ray causes extreme heat in those structures, and that thermal effect would blast the house. Then the energy, that is transmitted from that house, would cause the effect, which is similar to a dynamite stick or nuclear weapon. 

So the building would transmit the energy to sideways, and the thing that increases the effect would be the giant spacecraft, which is acting like floor above the area. This means that the spacecraft would aim the horizontal blast effect, which would be the most effective way to cause the area destruction because the blast would not have space to grow vertically. 

The only way, what the blast can get is the horizontal direction. And the blast would travel farther than the blast would happen under the sky. This has been caused the strange theories about obelisks. Obelisks are things, that might feel innocent, but if we would target the extremely high-temperature in those stones, that would cause the thermal expansion, what would act as the building in the "Independence Day" movie. 

2) If the temperature of the obelisk would rise to an extremely high level with extremely high speed that effect would terminate the entire city. And this is why extremely powerful lasers are dangerous. 

When the temperature of the stone would rise with extremely high speed to extremely high, that thing brakes the stone. The breaking stone would send the sound, and if the sunlight is warming that thing with very high speed, it would cause the expanding effect, what people can hear. So if the rise of temperature would be high enough the breaking stone would cause a similar effect with nuclear weapons. 

The speed of the sound or in this case the pressure-barrier is the same as the expanding stone. And is it possible that somebody has used those obelisks as the weapon? The thing is that energy could be pumped to the stone by using a large group of large parabolic mirrors. And if there is the structure above the obelisk, that would cause that the blast would be aimed horizontally. 

The modern version of this kind of thing could be the high-power laser ray, which is aimed at some building. Then the energy of the explosion would be transmitted to the structure, and that causes an extremely powerful effect. Of course, this kind of effect can be caused by using cathode rays, which causes a similar effect with laser, but could be more effective. In this case, the structure must load with opposite polar electricity, that the electrons would hit to the building.