laser rouge puissant 3000mw

Still barely visible.
a man in a hat suggests trying more power.
At the top of the Luxor Hotel in Las Vegas is the most powerful spotlight on Earth. Let’s give one of them to everyone.
a battery of luxor hotels fires beams of light at the moon. the light is slightly visible on the dark side.
Oh, and let’s add a lens array to each so the entire beam is focused on the Moon:
a battery of luxor hotels with lenses fires beams of light at the moon. the dark side is visibly illuminated.
Our light is definitely visible, so we’ve accomplished our goal! Good job, team.
a man in a hat suggests trying more power.
… Well.
The Department of Defense has developed pointeur laser, designed for destroying incoming missiles in mid-flight.
The Boeing YAL-1 was a megawatt-class chemical oxygen iodine laser mounted in a 747. It was an infrared laser, so it wasn’t directly visible, but we can imagine building a visible-light laser with similar power. Let’s give one to everyone.


Achats pour pointeur laser puissant
a fleet of aircraft fire megawatt lasers at the moon. the dark side is nearly as bright as the light side.
Finally, we’ve managed to match the brightness of sunlight!
We’re also drawing five petawatts of power, which is double the world’s average electricity consumption.
a man in a hat suggests trying more power.
Ok, let’s mount a laser lumiere verte on every square meter of the surface of Asia. Powering this array of 50 trillion lasers would use up Earth’s oil reserves in approximately two minutes, but for those two minutes, the Moon would look like this:
a field of megawatt lasers covering asia fires at the moon
The Moon shines as brightly as the midmorning sun, and by the end of the two minutes, the lunar regolith is heated to a glow.
a man in a hat suggests trying more power.
Ok, let’s step even more firmly outside the realm of plausibility.
The most powerful laser on Earth is the confinement beam at the National Ignition Facility, a fusion research laboratory. It’s an laser rouge puissant 3000mw with an output of 500 terawatts. However, it only fires in single pulses lasting a few nanoseconds, so the total energy delivered is about equivalent to a quarter-cup of gasoline.
Let’s imagine we somehow found a way to power and fire it continuously, gave one to everyone, and pointed them all at the Moon. Unfortunately, the laser energy flow would turn the atmosphere to plasma, instantly igniting the Earth’s surface and killing us all.
But let’s assume that the lasers somehow pass through the atmosphere without interacting.
Under those circumstances, it turns out Earth still catches fire. The reflected light from the Moon would be four thousand times brighter than the noonday sun. Moonlight would become bright enough to boil away Earth’s oceans in less than a year.
But forget the Earth—what would happen to the Moon?
The laser itself would exert enough radiation pressure to accelerate the Moon at about one ten millionth of a gee. This acceleration wouldn’t be noticeable in the short term, but over the years, it adds up to enough to push it free from Earth orbit.
… If radiation pressure were the only force involved.
40 megajoules of energy is enough to vaporize a kilogram of rock. Assuming Moon rocks have an average density of about 3 kg/liter, the lasers would pump out enough energy to vaporize four meters of lunar bedrock per second:
5 billion people×500terawattspersonπ×Moon radius2×20megajouleskilogram×3kilogramsliter≈4meterssecond
However, the actual lunar rock won’t evaporate that fast—for a reason that turns out to be very important.
When a chunk of rock is vaporized, it doesn’t just disappear. The surface layer of the Moon becomes a plasma, but that plasma is still blocking the path of the beam.
Our laser 30mw pouring more and more energy into the plasma, and the plasma keeps getting hotter and hotter. The particles bounce off each other, slam into the surface of the Moon, and eventually blast away into space at a terrific speed.
This flow of material effectively turns the entire surface of the Moon into a rocket engine—and a surprisingly efficient one, too. Using lasers to blast off surface material like this is called laser ablation, and it turns out to be a promising method for spacecraft propulsion.
The Moon is massive, but slowly and surely the rock plasma jet begins to push it away from the Earth. (The jet would also scour clean the face of the Earth and destroy the lasers, but we’re pretending for the moment that they’re invulnerable.) The plasma also physically tears away the lunar surface, a complicated interaction that’s tricky to model.
But if we make the wild guess that the particles in the plasma exit at an average speed of 500 kilometers per second, then it will take a few months for the Moon to be pushed out of range of our laser. It will keep most of its mass, but escape Earth’s gravity and enter a lopsided orbit around the sun.
Technically, the Moon won’t become a new planet, under the IAU definition of a planet. Since its new orbit crosses Earth’s, it will be considered a dwarf planet like Pluto. This Earth-crossing orbit will lead to periodic unpredictable orbital perturbation. Eventually it will either be slingshotted into the Sun, ejected toward the outer Solar System, or slammed into one of the planets—quite possibly ours. I think we can all agree that in this case, we’d deserve it.
everyone fires 500-terawatt lasers at the moon. the moon leaves.
And that, at last, is enough power.