Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
General Chit-Chat (non-photography talk)
JUST PLAIN NEAT INFORMATION..........
Page 1 of 6 next> last>>
Jul 19, 2021 12:53:16   #
Curmudgeon Loc: SE Arizona
 
Glass takes one million years to decompose, which means it never wears out and can be recycled an infinite amount of times!

Gold is the only metal that doesn't rust, even if it's buried in the ground for thousands of years.


When a person dies hearing is the last sense to go. The first sense lost is sight.

Your tongue is the only muscle in your body that is attached at only one end.

The tooth is the only part of the human body that cannot heal itself.

If you stop getting thirsty , you need to drink more water. When a human body is dehydrated, its thirst mechanism shuts off.

Zero is the only number that cannot be represented by Roman numerals.

Kites were used in the American Civil War to deliver letters and newspapers.

The song Auld Lang Syne is sung at the stroke of midnight in almost every English-speaking country in the world to bring in the new year.

Drinking water after eating reduces the acid in your mouth by 61 percent. Drinking a glass of water before you eat may help digestion and curb appetite.

Peanut oil is used for cooking in submarines because it doesn't smoke unless it's heated above 450F.

The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.

Nine out of every 10 living things live in the ocean.

The banana cannot reproduce itself. It can be propagated only by the hand of man.

Airports at higher altitudes require a longer airstrip due to lower air density.

The University of Alaska spans four time zones.

In ancient Greece , tossing an apple to a girl was a traditional proposal of marriage. Catching it meant she accepted.

Warner Communications paid 28 million for the copyright to the song Happy Birthday, which was written in 1935!

Intelligent people have more zinc and copper in their hair.

A comet's tail always points away from the sun.

Caffeine increases the power of aspirin and other painkillers, that is why it is found in some medicines.

The military salute is a motion that evolved from medieval times, when knights in armor raised their visors to reveal their identity.

If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day.

In ancient times strangers shook hands to show that they were unarmed.

Strawberries and cashews are the only fruits whose seeds grow on the outside.

Avocados have the highest calories of any fruit at 167 calories per hundred grams.

The moon moves about two inches away from the Earth each year.

The Earth gets 100 tons heavier every day due to falling space dust.

Due to earth's gravity it is impossible for mountains to be higher than 15,000 meters.

Mickey Mouse is known as "Topolino" in Italy.

Soldiers do not march in step when going across bridges because they could set up a vibration which could be sufficient to knock the bridge down.

Everything weighs one percent less at the equator.

For every extra kilogram carried on a space flight, 530 kg of excess fuel are needed at lift-off.

The letter J does not appear anywhere on the periodic table of the elements.

Reply
Jul 19, 2021 12:58:02   #
SalvageDiver Loc: Huntington Beach CA
 
Cool interesting facts!

Reply
Jul 19, 2021 13:01:40   #
Longshadow Loc: Audubon, PA, United States
 
Not sure about what they mean about the banana not reproducing itself without human intervention.
I planted one little tree in my yard and wound up with ten+ over a few years. Neighbor gained six.
I never did anything to any of the trees. New trees just kept popping up near the older ones.

Makes me wonder about the other statements.
Amusing though.

Reply
 
 
Jul 19, 2021 14:02:06   #
NMGal Loc: NE NM
 
Interesting!

Reply
Jul 19, 2021 14:57:02   #
SteveR Loc: Dallas
 
Silver does not rust, and kidneys don't heal themselves.

Reply
Jul 19, 2021 15:34:05   #
Longshadow Loc: Audubon, PA, United States
 
SteveR wrote:
Silver does not rust, and kidneys don't heal themselves.

Silver does "rust".
Rust, a generic term for oxidation of a metal (def. 2). MOSTLY thought of with ferrous materials (iron, def. 1), which is most commonly seen.
Iron rust is red/brown (iron oxide), silver rust is black/brown (silver oxide).
Why do you think people are always cleaning and polishing the silver(ware).
It rusted (oxided).

GOLD does not rust or tarnish.

Rust and tarnish are synonyms.
However most people think of iron as rusting and silver tarnishing.

Reply
Jul 19, 2021 15:48:36   #
SteveR Loc: Dallas
 
Longshadow wrote:
Silver does "rust".
Rust, a generic term for oxidation of a metal (def. 2). MOSTLY thought of with ferrous materials (iron, def. 1), which is most commonly seen.
Iron rust is red/brown (iron oxide), silver rust is black/brown (silver oxide).
Why do you thing people are always cleaning and polishing the silver(ware).
It rusted (oxided).

GOLD does not rust or tarnish.

Rust and tarnish are synonyms.
However most people think of iron as rusting and silver tarnishing.
Silver i does /i "rust". br i Rust /i... (show quote)


It will react to some chemicals other than water. I have always considered rust to be a product of water. The OP said "Gold does not rust or tarnish." I would say that silver does not rust but it does tarnish.

Reply
 
 
Jul 19, 2021 15:55:12   #
Longshadow Loc: Audubon, PA, United States
 
SteveR wrote:
It will react to some chemicals other than water. I have always considered rust to be a product of water.

Any compound that will create an oxide of the metal. Water is most common.
Oxygen in the air also does.
Water contains oxygen.
If a silver or brass item just sits on a shelf, never to be "wet with water", it will tarnish.
I have a few silver things in my house that have tarnished. Humidity in the air? Oxygen in the air.
How about the black that gets on your fingers from silver rings (jewelry) that are not coated.
Silver oxide. Sweat accelerates it.

Again, rust and tarnish are synonyms. Same effect, oxidation.
Rust most commonly refers to a ferrous (iron) metal, tarnish most commonly to silver AND brass.

Gold is one of the least reactive metals. That's why good connectors are gold plated.

Reply
Jul 19, 2021 16:15:53   #
SteveR Loc: Dallas
 
Longshadow wrote:
Any compound that will create an oxide of the metal. Water is most common.
Oxygen in the air also does.
Water contains oxygen.
If a silver or brass item just sits on a shelf, never to be "wet with water", it will tarnish.
I have a few silver things in my house that have tarnished. Humidity in the air? Oxygen in the air.
How about the black that gets on your fingers from silver rings (jewelry) that are not coated.
Silver oxide. Sweat accelerates it.

Again, rust and tarnish are synonyms. Same effect, oxidation.
Rust most commonly refers to a ferrous (iron) metal, tarnish most commonly to silver AND brass.

Gold is one of the least reactive metals. That's why good connectors are gold plated.
Any compound that will create an oxide of the meta... (show quote)


The OP seemed to differentiate rust from tarnish. Most of us lay people do as well. When you polish silver you remove the tarnish. Try removing the rust from your car by polishing it.

Reply
Jul 19, 2021 16:31:43   #
DirtFarmer Loc: Way too close to New York City
 
Curmudgeon wrote:
...Caffeine increases the power of aspirin and other painkillers, that is why it is found in some medicines.

The word describing that is "adjuvant". An adjuvant is something added to a treatment that does not by itself affect the thing being treated but increases the efficacy of the main treatment ingredient. For example, sugar is an adjuvant for any pesticide targeting Spotted Wing Drosophila because the fruit fly has taste receptors on its feet and as soon as its feet detect sugar, the feeding instinct is activated, thereby increasing the efficacy of the pesticide.

Curmudgeon wrote:
...Strawberries and cashews are the only fruits whose seeds grow on the outside.

The strawberry "seeds" are called "achenes".
The cashew fruit (Cashew Apple) is used in Brasil for a drink "suco de cajou" (excuse my Portugese). It is a cultivated taste. The shell of the cashew nut has elements that can cause skin irritation, and is removed before sale of the nut.

Curmudgeon wrote:
...Soldiers do not march in step when going across bridges because they could set up a vibration which could be sufficient to knock the bridge down.

Of course it depends on the number of soldiers and the size of the bridge, but that has been known since ancient times.

Reply
Jul 19, 2021 16:38:35   #
Longshadow Loc: Audubon, PA, United States
 
SteveR wrote:
The OP seemed to differentiate rust from tarnish. Most of us lay people do as well. When you polish silver you remove the tarnish. Try removing the rust from your car by polishing it.

You can, you need to use a different compound.

Yes, the OP may have, but tarnish and rust are both oxidations of a metal, different references to different metals, different types of oxide compounds.
Saying "Silver does not rust." is a misnomer. While it doesn't produce the same physical characteristics of the base element oxide, rust is oxidation, just like tarnish is oxidation. Both metals oxidize.
Rust is not necessarily restricted to iron, and tarnish is not restricted to silver or brass.
However they are most commonly used that way.
Iron oxide is can be ugly, lumpy, and flaky, while tarnish looks like a coating. But I've seen iron look like it has a smooth brown coating.

And we can discuss semantics well into the evening.........

Reply
 
 
Jul 19, 2021 16:49:57   #
juan_uy Loc: Uruguay
 
Longshadow wrote:
Not sure about what they mean about the banana not reproducing itself without human intervention.
I planted one little tree in my yard and wound up with ten+ over a few years. Neighbor gained six.
I never did anything to any of the trees. New trees just kept popping up near the older ones.

Makes me wonder about the other statements.
Amusing though.


This one also seems unlikely to say the least:
"If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day."

Reply
Jul 19, 2021 16:58:17   #
Longshadow Loc: Audubon, PA, United States
 
juan_uy wrote:
This one also seems unlikely to say the least:
"If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day."

Can't see that either (literally).
All the dust and moisture in the atmosphere is lit brightly by the sun.
Can't see through scattered light in the atmosphere.
I believe one would simply see a bright blue (white) circle of light at the end of the chimney.

Reply
Jul 19, 2021 17:00:12   #
flip1948 Loc: Hamden, CT
 
Longshadow wrote:
Silver does "rust".
Rust, a generic term for oxidation of a metal (def. 2). MOSTLY thought of with ferrous materials (iron, def. 1), which is most commonly seen.
Iron rust is red/brown (iron oxide), silver rust is black/brown (silver oxide).
Why do you think people are always cleaning and polishing the silver(ware).
It rusted (oxided).

GOLD does not rust or tarnish.

Rust and tarnish are synonyms.
However most people think of iron as rusting and silver tarnishing.
Silver i does /i "rust". br i Rust /i... (show quote)

Silver is more likely to tarnish in the presence of sulphur (silver sulphide) than it is in the presence of oxygen (silver oxide).

As a onetime coin collector I am required to know things like this.

Reply
Jul 19, 2021 17:10:29   #
Linda From Maine Loc: Yakima, Washington
 
juan_uy wrote:
This one also seems unlikely to say the least:
"If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day."
You are correct per this Live Science article:

https://www.livescience.com/34335-see-stars-daytime.html

Apparently, even Aristotle was wrong

Reply
Page 1 of 6 next> last>>
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
General Chit-Chat (non-photography talk)
UglyHedgehog.com - Forum
Copyright 2011-2021 Ugly Hedgehog, Inc.