Generate a question about the following movie plot: This authentic movie adaptation of the H. G. Wells classic novel follows the story of humanity at the turn of the 20th century as a large cylinder from space falls on the English countryside.Set in England in the early 1890s, the first part of the film follows the experience of a journalist from Woking, England known as "the writer" (Anthony Piana), gets involved with the discovery of a "falling star" on Horsell Common which later turns out to be a Martian Cylinder. The writer and a fellow astrometer named Mr. Ogilve travel to the impact site along with several other people to view the mysterious Cylinder. The Cylinder opens and a large, multi-tenticled creature emerges. After a minute, the Martian retreats back into the Cylinder and then a small dish-shaped device appears on the top of the cylinder. The Martians start killing people with a "heat ray"; a type of weapon that incinerates everyone and everything in its path. Dozens of people, including Ogilve, are burned alive. The writer discovers his house is in range of the Heat Ray and decides to take his wife (Susan Gorforth) and her maid to the comparable safety of her cousins in the nearby town of Leatherhead. He does not stay with them after promising to return the horse-drawn cart to the landlord of The Spotted Dog Inn near his home. However, when he returns the horse and cart, the owners and most of the population of that town is dead; killed not by a heat ray but by a chemical weapon known as the "black smoke"; a lethal type of poison gas that kills people and animals instantly.As the writer returns to Leatherhead, his wife and housekeeper are gone, having left behind a note that they are going to London to find help and safety. As the writer attempts to find his wife, he encounters Martian-built 100-foot tall tri-pod "Fighting Machines" which begin laying waste to everything moving in their path.Meanwhile, the writer's younger brother, a student living in London, learns about the alien invasion over the newspapers and decides to escape from London to...
A:
What weapon do the Martians use?