A torpedo moves under the water. It travels to a target. It carries a big blast. It helps small boats fight big ships. This is a very fast tool. 
A torpedo moves under the water. It carries a big blast. It moves toward a target on its own. This helps small boats fight big ships. 
Long ago, people used different tools. Some were like floating bombs. Others were attached to long beams. A man named Robert Whitehead made a new kind. It used air to move fast.
His tool could stay at a set depth. It used a special part to help it. This part kept it from going too deep. It could also stay near the top.
Today, many kinds of torpedoes exist. Some fly through the air from planes. Others come from deep under the sea. They are very useful tools for ships.
A torpedo is a weapon that moves under the water. It is self-propelled, which means it moves on its own. It carries an explosive warhead to hit a target. This helps small boats fight very large ships. 
Long ago, people used different tools. Some were just floating mines. Others were attached to long beams. In 1866, Robert Whitehead made the first modern torpedo. It was a tube that ran underwater using compressed air. 
Early versions had trouble staying at the right depth. Whitehead fixed this with a secret tool. He used a hydrostatic valve, which is a part that senses water pressure. This helped the torpedo stay at a set depth.
Today, there are many kinds of torpedoes. Some are lightweight. Others are heavy. Some fly through the air from planes. 
A torpedo is a special weapon that moves through the water. It is self-propelled, which means it can move on its own toward a target. It carries an explosive warhead inside its body. This explosive is meant to go off when it hits something. It can also go off when it gets very close to a target. These tools are important because they let small boats fight huge ships. 
How a torpedo works can be seen in its many different parts. Modern versions can be lightweight or heavyweight. Some move in a straight line, while others are autonomous homers. This means they can find their own way to a target. Some even use a wire to help guide them. 
History shows that people have had ideas for these weapons for a long time. In 1275, an engineer named Hasan al-Rammah wrote about a projectile. He imagined something like an egg that could carry fire through the water. Later, in the 1600s, Cornelius Drebbel used a spar torpedo. He attached explosives to a beam on his submarine. 
The modern torpedo was truly born in the 1860s. An officer named Giovanni Luppis shared a plan for a floating weapon. An English engineer named Robert Whitehead took these ideas to create something better. In 1866, he invented the first effective self-propelled torpedo. 
Many interesting facts come from the growth of this technology. By 1870, Whitehead's torpedoes could travel at speeds of up to 30 knots. 
A torpedo is a self-propelled underwater weapon launched from above or below the water surface. It is designed to travel toward a specific target using its own power. Once it reaches the target, it uses an explosive warhead to detonate. This explosion can happen upon direct contact or when the device is in close proximity to the target. Historically, these devices were known by many names, including automotive, automobile, locomotive, or fish torpedo. Since about 1900, the term has strictly referred to self-propelled underwater explosive devices. These weapons are significant because they allow small vessels to destroy large ships. Without the need for massive guns, light aircraft, submarines, or even frogmen can engage much larger warships.
Modern torpedoes are categorized into several distinct types based on their size and guidance systems. Some are classified as lightweight, while others are considered heavyweight. There are also straight-running models that move in a fixed path. Some advanced versions are autonomous homers, meaning they can find a target on their own. 
The mechanism of a modern torpedo involves complex propulsion and depth control. Many historical and early modern models used compressed air to drive their movement. 
The history of torpedo-like weapons stretches back many centuries. In 1275, an engineer named Hasan al-Rammah proposed a projectile shaped like an egg. He suggested this egg could carry fire through the water. In the early 17th century, Cornelius Drebbel invented the spar torpedo. He attached explosives to the end of a beam fixed to a submarine. 
The invention of the true modern torpedo began in the 1860s. An Austro-Hungarian officer named Giovanni Luppis shared plans for a weapon called the "Salvacoste." 

Technological refinements significantly increased the power and speed of these weapons. In the 1880s, a British committee studied hydrodynamics with Dr. R. E. Froude. They discovered that a blunt nose did not slow the torpedo down. In fact, a blunt nose provided a speed advantage of about one knot over pointed designs. 
Torpedoes connect to many different fields of science and engineering. Their development required advancements in compressed air propulsion and mechanical clockwork. The need for better steering led to the use of gyroscopes. Whitehead even purchased the rights to a gyroscope design from Ludwig Obry to improve control. 
🖼️ Images & Media (38)
+ 26 more
More to explore
✨ What else?
Related topics you might enjoy
🔬 Go deeper
More advanced topics to explore
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.