Green cross IS the symbol of a pharmacy in France and Germany (possibly other countries in Western Europe too).

you'll see multiple signs like this in any town of reasonable size as you drive across these countries.
Modern LED version

 

Snake-on-a-pole is ancient Greek - it is the Rod of Asclepius and it should have just one snake!
https://en.wikipedia.org/wiki/Rod_of_Asclepius
If it has two snakes, then it's the staff of Hermes the messenger and it's called a Caduceus
https://en.wikipedia.org/wiki/Caduceus
https://en.wikipedia.org/wiki/Caduceus_as_a_symbol_of_medicine

Numbers 21:8
English Standard Version
And the LORD said to Moses, “Make a fiery serpent and set it on a pole, and everyone who is bitten, when he sees it, shall live.”

This is reportedly when the Israelites wandered into land infested with poisonous serpents. It was a punishment for their complaining against the Mana provided from heaven. Whenever anyone was bitten - to live all they had to do was look at the serpent on the pole and they would live.

I've not heard of the Greek versions of snake(s) on a pole. Then again I've never experienced living on another planet. I can't deny it's possible.

 

Found this:
medical symbol snake and staff
Interesting what you can learn when pushed to do so.


OK, lets not go off topic.

The box appears to contain simple fluorescent tubes. It is not harmful.

 

And to be clear, because in post #1 the TS calls out and circles the box, neither is the box.

ak

 

And if he starts to feel ill, he could go see a pharmacist.

 

X-rays were called EX RAY because the radiation they emitted was not known or understood.

Can you give a link to that? I looked and they all say the same thing that Rontgen who discovered them called them "X" rays because he didn't know or understand what they were.

 

Sorry SB: there are many things people call radiation same as so many people call ALL electrical problems "Short". All things that radiate energy can "Radiate". However, so many people mistake radiation with x-rays or nuclear decay radiation. True, Rontgen didn't know what they were so he called them "X" rays because they were rays of a type unknown to him. As pointed out before, the sun radiates light and other forms of energy, some potentially harmful. Light bulbs radiate energy. Radio transmission emits radiation. Radiation in itself isn't harmful, it's the type of radiation that one needs to be concerned with. Microwave energy (radiation), while not radiation like Rontgen found, isn't necessarily "X" ray. Though microwave - um - radiation - IS harmful because of the friction of water molecules - it isn't among the class of nuclear radiation, radiation which can ionize and damage cells of plant and animal nature. The TS is concerned about radiation from the outdoor lamp. It isn't going to cause him any harm, neither in short term nor long term.

The term X-Ray has become synonymous with x-ray photography, medical and in other industries, most forms of radiation we encounter are not harmful. CB radio radiation is not harmful, yet it is radiation to which we can be sitting very close to. Cell phones emit radiation when they transmit. Some people are concerned about the possibility of long term exposure to low levels of this form of radiation - and I don't know - and don't wish to get involved in a prolonged discussion about whether cell phone radiation is or isn't harmful. Last I heard - I haven't heard either way.

 

Can you give a link to that? I looked and they all say the same thing that Rontgen who discovered them called them "X" rays because he didn't know or understand what they were.

I agree, I don't think anyone (including Roentgen), ever called X-rays "ex-rays" per @Tonyr1084 post.

 

I agree, I don't think anyone (including Roentgen), ever called X-rays "ex-rays" per @Tonyr1084 post.

Although there was a record album by David Lindley called "El Rayo-X". https://en.wikipedia.org/wiki/El_Rayo-X

https://en.wikipedia.org/wiki/David_Lindley_(musician)

 

The green cross is a long standing symbol for first aid. I don't see it used as much anymore, and some times a red cross is erroneously used instead, but that's what the green cross meant for a very long time.

A random source states: "In particular, the green cross represents First Aid. The Red Cross of the International Federation of Red Cross and Red Crescent Societies is an emblem protected under the Geneva Conventions Act and cannot be used without permission. Contrary to popular belief, the Red Cross is not a public-domain First Aid symbol".

 

A random source states: "In particular, the green cross represents First Aid. The Red Cross of the International Federation of Red Cross and Red Crescent Societies is an emblem protected under the Geneva Conventions Act and cannot be used without permission. Contrary to popular belief, the Red Cross is not a public-domain First Aid symbol".

When our group was installing equipment (non-weapons related) on the Mercy in the 80's we called the Red Cross(s) a missile target.


https://www.history.com/news/hospital-ship-uss-comfort-world-war-ii-kamikaze-attack

The USS Comfort had been hit by a Japanese suicide pilot who had directed his plane at the massive Red Cross emblem painted on the ship’s hull as if it were a bullseye.

 

we called the Red Cross(s) a missile target.

What is the difference between a mechanical engineer and a civil engineer?

Mechanical engineers build weapons.
Civil engineers build targets.

ak

 

What is the difference between a mechanical engineer and a civil engineer?

Mechanical engineers build weapons.
Civil engineers build targets.

ak

The Moskva was a pretty nice target.

 

X-rays were called EX RAY because the radiation they emitted was not known or understood. The sun is a form of radiation. So is an incandescent lamp. Radioactive materials emit x-rays because their particles are deteriorating at a known pace. THOSE emissions are hazardous because they cause ionization in living cells.

Microwave ovens don't emit x-rays they emit micro waves. Yes, very small electromagnetic waves of energy. Those interact with water molecules causing them to vibrate at very high rates. That vibration generates friction, which generates heat. That's how a microwave oven works. Fluorescent lamps create ultraviolet light waves which are then turned into visible light by the phosphorous coating inside the glass tube. I'm sure some UV light leaks past, but not much. And when you're at a certain distance and you double that distance you reduce your exposure by four times. It's called the inverse square law. If you shorten your distance by half - you increase your exposure four times.

With true radiation - what we think of when we think of Nuclear Reactors and X-Ray photography (like at the doctor or dentist office) those can penetrate soft walls like sheet rock. The harder and denser the materials the more shielding you get. But with UV radiation - a paper napkin can block much of the UV. A sheet of paper can block a major percentage of UV. A wall - forget about worrying. It's not going to get to you. And as I mentioned before, the further away you are the much less radiation you'll get.

If your office has fluorescent lights - you have more to be concerned from them than you do from a sign that is outside the establishment. And you literally have nothing to worry about with fluorescent lights in your ceiling or on a desk lamp. They're 100% safe.

Now, I've never heard of a green cross for a pharmacy. I've seen Rx, for which I don't know what that means, and I've seen the snake on a pole (comes from the bible). But never a green plus sign. I'd be more inclined to think that plus sign is a school for the mathematically challenged.

Some countries use a green cross instead of a red cross for health related industries.

Update: I see I’m late to the party.

 

When our group was installing equipment (non-weapons related) on the Mercy in the 80's we called the Red Cross(s) a missile target.

View attachment 267357
https://www.history.com/news/hospital-ship-uss-comfort-world-war-ii-kamikaze-attack

The USS Comfort had been hit by a Japanese suicide pilot who had directed his plane at the massive Red Cross emblem painted on the ship’s hull as if it were a bullseye.

I've wondered how many medical related personal were targeted throughout war because they had a big red cross painted on them despite the conventions from an enemy who doesn't share your compassions.

 

I only used EX to emphasize the X in X-ray.

 

There is no harmful radiation emitted by it.

 

Any gas discharge will also emit Xray's, though the intensity may not have any immediate effect.
It is possible that there may be unwanted effects in this short distance and long exposures.

Thanks everybody, how true is this? How likely is a neon sign to emit xray?

 

Thanks everybody, how true is this? How likely is a neon sign to emit xray?

Much lower intensity and much less focused than the x-rays emitted by CRT computer monitors and televisions.

 

Much lower intensity and much less focused than the x-rays emitted by CRT computer monitors and televisions.

Thanks a lot. Assuming that this is nothing to be worried about at like 2 meter distance and not direct exposure even for long periods of time every day?