Harpoon

A harpoon is a long tool.

It looks like a spear. It helps catch big fish or whales.

A rope is tied to the tool. The head can turn inside the animal. This stops the rope from pulling out. People use the rope to pull the catch in. Some people even use them to hunt in space!

A space probe once tried to use them. It wanted to stay on a comet.

A harpoon is a long tool used for hunting.

It looks like a spear. People use it to catch large fish or sea animals. These animals include seals and whales.

A harpoon is different from a simple spear. The most important part is the head. The head can detach from the shaft. It is made to turn sideways inside the animal. This is called a toggle. This turn stops the rope from pulling out.

In the past, people made different kinds. Inuit hunters used special tools for the Arctic. Some were short for hunting at breathing holes. Others were long for throwing.

Later, people made explosive harpoons for whaling. These had a tip that would explode. This helped keep the whale floating. Today, some people use a speargun. These use gas or springs to shoot. Even space probes have used harpoons! A probe tried to use them to stay on a comet. The harpoons did not fire, but it was a big test.

A harpoon is a long, spear-like tool used for hunting.

People use it to catch large fish or marine mammals. These animals include seals, sea cows, and whales. It can also be used in naval warfare against boats. The tool is designed to impale a target. This allows a hunter to use a rope or chain to pull the animal back.

How a harpoon works is very special. Unlike a simple spear, it has a detachable head. This head is designed to toggle or turn sideways inside the animal's flesh. This movement prevents the line from pulling out.

Some harpoons for walrus are made with ivory heads. These might also have rawhide wrapped around the wooden shaft. Some hunters even attach an ice pick to the tool. Different builds help the tool work better for different targets.

Humans have used harpoons for thousands of years. The earliest known harpoons were found in the Katanda region of Zaire. These were used about 90,000 years ago to spear catfish. This date is debated because old dating methods can be less accurate. In France, cave art from 16,000 years ago shows drawings of harpooned seals. Ancient literature also mentions them. The Bible includes a reference to fishing spears in the book of Job. The Greek historian Polybius described harpoons used for swordfish.

Whaling history changed with new inventions. In 1737, the British South Sea Company used cannon-fired harpoons. Later, William Congreve designed a rocket-propelled harpoon in the 1820s. These early tools were called bomb lances. They were meant to explode on contact. In 1870, Svend Foyn patented a modern exploding harpoon and gun.

His design used a grenade tip that exploded inside the whale. This helped the whale stay afloat after it was caught.

Today, harpoon technology looks very different. Divers use a hand-held speargun to hunt fish. These can be powered by springs or pressurized gas.

Even space explorers have thought about using them. The Philae spacecraft carried harpoons to help it anchor to a comet. The probe was visiting comet 67P/Churyumov–Gerasimenko. Sadly, the harpoons failed to fire during the mission. This shows how people always look for new ways to use these tools.

A harpoon is a long, spear-like projectile used for hunting. It is specifically designed to catch large fish or marine mammals. These animals include seals, sea cows, and whales. The tool is used to impale a target and secure it. This allows hunters to use an attached rope or chain to pull the animal back.

Beyond hunting, harpoons can serve as ranged weapons in naval warfare. They are essential tools for people who rely on the ocean for food.

The mechanism of a harpoon is different from a standard spear. A critical feature is its detachable head. This head is designed to toggle, or turn sideways, inside the animal's flesh. This movement prevents the line from pulling out of the target.

Inuit hunters use specialized builds for different tasks. They use short, fixed-foreshaft harpoons when hunting at breathing holes. They use loose-shafted harpoons when they need to throw the weapon. Some walrus harpoons feature ivory heads and wooden shafts wrapped in rawhide. They may even include an attached ice pick.

History shows that humans have used these tools for a very long time. The earliest known harpoons were found in the Katanda region of Zaire. These Semliki or Katanda harpoons date back 90,000 years. Scientists believe they were likely used to spear catfish. However, some experts dispute this date due to less accurate dating techniques. In Japan, spearfishing with poles was common during the Palaeolithic period.

Cave art in France from 16,000 years ago even shows drawings of harpooned seals.

Ancient literature also records the use of these weapons. The Bible mentions fishing spears in the book of Job. The Greek historian Polybius described hunting swordfish with a barbed, detachable head. In India, the Mincopie people have used harpoons with long cords for fishing since early times. Seafaring Harappans also used copper harpoons during antiquity. These various cultures all developed ways to use the tool for survival.

The history of whaling saw many technological changes. In 1737, the British South Sea Company used cannon-fired harpoons. By the 1820s, William Congreve designed a rocket-propelled whaling harpoon. These early explosive devices were called bomb lances. They were designed to explode on contact to kill the whale.

However, many whales still sank before they could be retrieved. This was a major problem for early whalers.

In 1870, Svend Foyn changed whaling forever with a new invention. He patented a modern exploding whaling harpoon and gun. His design used a grenade tip that exploded inside the whale. He also used a shaft connected to the head with a moveable joint.

This system helped keep whales afloat after they were killed. This development, along with the steam engine, started the modern age of commercial whaling. Whalers could now hunt faster species called rorquals.

Modern harpoon technology has evolved into several different forms. Today, a standard whaling harpoon uses a deck-mounted launcher, which is mostly a cannon. The projectile has an explosive penthrite charge attached to a thick rope. The spearhead has sharp spikes to prevent it from sliding out of the blubber. Divers now use a different version called a hand-held speargun. These are powered by pressurized gas, springs, or elastic bands.

Even space exploration has attempted to use this technology. The Philae spacecraft carried harpoons to help it anchor to a comet. The probe was visiting comet 67P/Churyumov–Gerasimenko. The goal was to keep the probe attached to the surface. Unfortunately, the harpoons failed to fire during the mission. This shows how the concept of the harpoon is applied even in the most extreme environments.