It’s not dangerous, but it can be frightening. If you leave your hand in one place on the ball for a long time, heat is generated. When people are chained together, the person holding the plasma ball can get hot pretty quickly.
Dangers. If you bring conductive materials or electronic devices close to a plasma ball, the glass may become hot. The high-voltage, radio-frequency energy coupled to it from within the sphere, even through a protective glass enclosure, can cause a mild electric shock to the person touching it.
They are filled with helium & Neon to a pressure less than 0.1 atmospheres, so it would implode and the gases would do no harm.
If you touch the plasma ball, all the electrons will be directed through you to earth. You just see a big spark in the ball where you put your hand. If you touch it long enough, you’ll be filled with electrons and can light up a lightbulb!
Plasma balls do not emit gamma rays or even X-rays (see here). However, they emit some other forms of radiation that are still capable of exciting electrons to form electron-ion pairs. You can test this yourself at home by doing an experiment like the one in this question.
Because the plasma ball emits electromagnetic radiation, it can interfere with pacemakers. Be careful when attempting to create burning or fire effects with the plasma ball and nothing flammable should be left in contact with the plasma ball.
A plasma sphere is a lamp or sphere filled with inert gases with an electrode in the center. When the current is supplied, the plasma, which consists of positive ions and negative electrons, emits electric current to create colorful tendrils of light.
A plasma globe is a high voltage electrical device and should be used with caution. The frequencies it emits can interfere with cell phones, microphones, Wi-Fi and cordless phones. Since the plasma ball emits electromagnetic radiation, it can interfere with pacemakers.
The plasma ball is a miniature Tesla coil. Inside the ball is a coil of wires through which electrons vibrate at a very high frequency. This shakes the atoms around the wires so much that their electrons start falling off! There is a partial vacuum inside the glass sphere.
Plasma balls actually produce small amounts of ozone when touched. This is because the high voltage inside the globe has a very high frequency and this can propel electrons with high kinetic energy through the glass to create ozone creating micro-discharges at your fingertips.
Cells in the plasma are said to be viable for about 24 hours. When these cells lose their viability or die off, it can cause a wound or tattooed area to smell bad. It is known that lymphatic fluid is responsible for this foul odor. It may sometimes smell like vinegar, or sometimes like cheese, or sometimes like other smells.
It doesn’t require a lot of audio, although the audio level is pretty narrow from min to max. It appears to be set to a normal speaking volume. People might just give you weird looks when you hum, talk, and make noises toward your plasma ball.
Naturally occurring plasmas can reach temperatures of up to 106 eV (1 eV ~ 11600 K) , in industrial applications the maximum temperatures are around 1 eV .
A plasma sphere is essentially a miniature Tesla coil that conducts an AC voltage of about 2-5 kilovolts at a frequency of about 30 Hertz and is enclosed in a glass sphere containing an inert gas like neon or argon.
Donating plasma shouldn’t hurt. Donating plasma should feel like donating blood. You may feel a stinging sensation when the needle is inserted, but afterward, staff will do their best to make sure you are comfortable throughout the donation process.
Ensure that people with heart problems, medical devices such as pacemakers, implanted defibrillators, cochlear implants, or hearing aids do not touch the plasma ball3.