
The electric chair was first used as a method of execution in 1890, and since then, 4,374 people have been put to death by it. The process involves a person being strapped into a chair and having a moist sponge put on their head, covered by an electrode. Another electrode is attached to their leg, and then the electricity is turned on. The electricity passes through the body, heating the skin and muscles to the point where steam or smoke fills the room, along with the smell of burning flesh. The extreme heat can cause eyeballs to melt, and pop out of the head, which is why prisoners often have their eyes taped shut before execution.
| Characteristics | Values |
|---|---|
| Electric chair usage | Still used in 12 US states |
| No longer the primary method of execution in the US | |
| First used in 1890 | |
| 4,374 people have been executed by electric chair | |
| Voltage | 500–2,500 volts |
| Amperage | 6 amps |
| Time | 30 seconds at a time |
| Number of shocks | At least 2 |
| Temperature | Body can heat up to 100°C |
| Eyeballs | Can pop out of the head |
| Can melt | |
| Prisoners' eyes are taped shut | |
| Pain | Unlikely to be felt |
| Some prisoners have been known to shriek or shout | |
| Botched executions | Multiple executions have been botched |
| Prisoner survived execution in 1946 | |
| Prisoner's legs were broken by the force of the electric current in 1991 |
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What You'll Learn
- The electric chair was invented as a humane alternative to hanging
- The electricity enters the body through saline-soaked sponges and skull electrodes
- The electricity travels through the body faster than pain impulses
- The body is strapped in and the eyes are taped shut
- The body is heated to 100°C (210°F) and the eyeballs may melt

The electric chair was invented as a humane alternative to hanging
The electric chair was invented in the late 19th century as a more humane alternative to hanging. In 1881, a New York dentist named Alfred P. Southwick conceived of the electric chair as a method of execution. It was developed over the next decade and first used in 1890.
Southwick's idea came to national attention when he published his ideas in scientific journals in 1882 and 1883. He had previously conducted experiments on dogs, trying to develop a method that would work on humans. The electric chair was first adopted by New York State in 1899 as a means for death penalty prisoners "to die as pleasantly as possible".
The electric chair was considered a more humane alternative to hanging because it was thought to cause death more swiftly and neatly. However, it is now known that the electric chair can cause the body to swell so much that the eyeballs pop out of the head, and the sudden extreme temperature in the body can cause the eyeballs to melt. Prisoners often have their eyes taped shut before execution to prevent this. Lethal electrocution also heats the internal organs so much that coroners must wait for the body to cool down before performing an autopsy.
The electric chair is no longer used as the primary method of execution in the United States, and lethal injection is now perceived as a more humane alternative.
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The electricity enters the body through saline-soaked sponges and skull electrodes
The electric chair is a method of execution that has been in use since 1890. The electricity enters the body through saline-soaked sponges and skull electrodes, which are attached to the inmate's head via a metal or leather helmet. The sponges are soaked in a saturated saline solution, as salt water is an excellent conductor of electricity. This helps to minimise electrical resistance at the point of contact, reducing the risk of burns.
The use of saline-soaked sponges is a critical component of the process, as it ensures a good electrical connection between the electrodes and the inmate's skull. This is essential for the effective administration of the electric shock. The sponges are typically made of natural materials, such as sea sponges, to avoid any issues with conductivity.
The electricity enters the body through the skull electrodes and saline-soaked sponges, travelling through the brain, eye sockets, sinuses, and eventually out through the leg electrodes. This process can cause severe damage to the body, including burning of the scalp and calf, a heaving chest, gurgling, foaming at the mouth, bloody sweat, burning of the skin, shattering of the eye lens, and release of urine and/or feces.
The electric chair has been known to cause the body to swell so much that the eyeballs protrude from their sockets or pop out of the head. The intense heat generated by the electricity can also cause the eyeballs to melt, which is why prisoners often have their eyes taped shut before execution. The electric chair has fallen out of primary use in the United States due to its inhumane nature and the potential for botched executions.
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The electricity travels through the body faster than pain impulses
The electric chair was once considered a humane method of execution. However, the process is gruesome and painful. When the electricity is turned on, it enters the body through skull electrodes and saline-soaked sponges, then exits through leg electrodes. The circuit passes through muscles and veins into the brain, eye sockets, and sinuses.
The human body resists the electrical current passing through it, and this resistance creates heat. This heat can cause severe burns, with some of the skin burning off. The internal organs are heated to such high temperatures that the body must be allowed to cool down before an autopsy can be performed. The electricity can also cause the body to swell, sometimes to the extent that the eyeballs protrude from their sockets. The sudden extreme temperature can also cause the eyeballs to melt, which is why prisoners often have their eyes taped or masked shut before execution.
The exact mechanism by which electricity causes death is still debated by scientists. The most likely causes are cardiac arrest and paralysis of the part of the brain that controls respiration. If the amperage is too high and the voltage too low, the flesh cooks from the heat generated in the circuit. Even well-calibrated chairs cause charring and swelling. The electric chair also has a failure rate, with some prisoners surviving the first shock.
The speed at which electricity travels through the body is much faster than the speed of pain impulses. Nerve impulses, such as pain signals, travel at a maximum speed of 0.61 m/s, while the effect of the electric current travels much faster due to the electrical force exerted on neighbouring particles. This is why, when plugging in a phone, it starts charging immediately, even though the electrons are only drifting along at a very slow speed.
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The body is strapped in and the eyes are taped shut
The electric chair was first invented as a more humane way to kill than hanging. It was thought that death by electrocution looked painless. However, the electric chair can cause the body to heat up to approximately 100°C (210°F), which causes severe damage to internal organs. The flesh can cook from the heat generated in the circuit, and the skin can be severely burned. Lethal electrocution heats the internal organs so much that coroners must wait until the body cools down before they can perform an autopsy.
The first person to die in the electric chair was executed in 1890. Since then, 4,374 people have been put to death by jolts of electricity. The electric chair is no longer used as the primary method of execution in the United States, but 12 states still have electric chairs.
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The body is heated to 100°C (210°F) and the eyeballs may melt
The electric chair was first introduced in 1890 as a more humane method of execution than hanging. However, it is now known that death by electric chair is far from humane. Lethal electrocution can heat the body to temperatures of up to 100°C (210°F), causing severe damage to internal organs. The flesh may cook, and the skin can burn off completely. The eyeballs may melt, and the eyes may pop out of the head. To prevent this, prisoners' eyes are often taped shut before execution.
The electric chair works by passing a high-voltage electric current through the body, typically via electrodes attached to the head and one leg. The electricity enters the body through the electrodes and seeks the quickest route to the ground, passing through muscles and veins into the brain, eye sockets, and sinuses. The current can cause the body to swell, and the eyeballs to protrude or melt.
The exact way in which electricity kills is still debated by scientists. The most likely causes are cardiac arrest and paralysis of the part of the brain that controls respiration. However, if the amperage is too high and the voltage too low, the flesh will cook from the heat generated in the circuit. Even when the electric chair is well-calibrated, charring and swelling can occur.
The electric chair is no longer the primary method of execution in the United States, and multiple executions have been botched, requiring the prisoner to be electrocuted more than once. There have also been reports of prisoners catching fire during execution and of prisoners being removed from a malfunctioning electric chair, only to be placed back in it once the issue has been fixed.
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Frequently asked questions
Yes, eyeballs can melt in the electric chair. The body can heat up to approximately 100°C (210°F) during the process, which is enough to melt the eyeballs.
The electric chair was first invented in 1890 as a more humane way to kill than hanging. The first person to die in the electric chair was executed in 1890. He was a prisoner convicted of murdering his common-law wife with an axe.
The prisoner is strapped into the electric chair at the wrists, waist, and ankles. The prisoner's head and calf of one leg are shaved to permit better contact between the skin and the electrodes, which are then attached. The executioner then flips the switch, sending 500 to 2,000 volts of electricity into the prisoner's body for 30 seconds at a time.











































