search results matching tag: Potassium

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (34)     Sift Talk (0)     Blogs (1)     Comments (74)   

NASA | Dynamic Earth

GeeSussFreeK says...

What is particularly interesting, and new science to me is that the majority of the heat that keeps the core molten is just decay heat from Thorium, Uranium, and Potassium. Only 20% of the heat that drives the internal dynamo is believed to be primordial, most is from the decay of mainly these elements. This, coupled with our crust layer which forms a heat retaining blanket, has enabled the heat of our core to live much longer than otherwise. Predictions for core solidification without radioactive decay is on the order of a couple hundred million years. Every major thermodynamic system on the earth is powered via some form of nuclear; be it fission (well, decay, which isn't usually called fission) keeping the core molten, or fusion keeping the sun burning...we owe a lot to the strong and weak forces!

Amazing Video of Atomic Particles Made Visible

GeeSussFreeK says...

>> ^TheSluiceGate:

They had something like this in the science museum in Barcelona - it detected these particles that were sleeting through the atmosphere at all times. Through your body too. It was kind of scary.


Due to radioactive carbon and potassium in your body, you have about 10 thousand of these kind of decays...per second! Radioactive world out there, your body is more than up to the task, though.

Amazing chemical reactions!

Jinx says...

I remember various open days and end of term lessons including these chemistry party tricks. Its cool if this sort of stuff sparks an interest in chemistry, but a REALLY good teacher makes learning about the less spectacular/explosive/colourful aspects of chemistry interesting.

I did always like potassium chlorate + gummybear/jellybaby though. Had some interesting physics lessons too. Shit like trying to build the highest load bearing bridge with the fewest toothpicks (I won ).

Bill Maher New Rules 4/20/12

Skeeve says...

As I said, the quote is my own, from another video on the subject.

As for the toxicity of ammonia, here is a link to the Health Effects portion of the CDC's Toxicological Profile for Ammonia.

Lots to read, but basically it shows that, except in huge doses of concentrated ammonia, ammonia is readily converted by the liver into urea (hence the ammonia smell of urine). Ingesting ammonia in quantities that are harmful (though still not fatal) causes burns, and ulceration of the mouth. Obviously if there was that much in the food, there would be a problem.

The report points out, "In a study of volunteers, ingestion of a single ammonium chloride tablet (approximately 15 mg NH4+/kg/day) led to a small transient increase (33% above fasting levels) in arterial blood concentrations of ammonium ion in 11 out of 20 subjects (Conn 1972); no change was noted in the remaining nine subjects in this group.[...]These data indicate that ingested ammonia is readily absorbed from the digestive tract and that the liver plays a large role in removing it from the blood (Conn 1972).



Basically, the FDA allows the use of ammonia to sterilize food products because, 1. the quantities needed to harm a human would cause said humans not to eat the products and 2. being naturally occurring, and necessary for life (for the provision of nitrogen for amino acid synthesis), the ingestion of ammonia in these quantities has no long-term health effects.

I'm not trying to argue that eating that pink goo is good for you - but the obsession with the ammonia is the wrong approach to attacking it. Phosphorus, sodium, potassium, magnesium, etc. are also poisonous in the right quantities, and they are also all necessary for human life.

If there is any common thread to my rants here on the sift, it's that people attacking the wrong subject, regardless of their intentions, makes them look stupid and reduces their credibility to those of us who care to know the truth. I completely agree with Maher's point that the republicans just attack anything the liberals support, but when he makes that point using misleading/wrong information, he's just as bad as them.>> ^Yogi:

>> ^Skeeve:
While I don't disagree with Maher's point, I'm getting really sick of people screaming about the ammonia used to treat the pink goo that is turned into chicken nuggets. As I said regarding another video:
"ammonia is a natural chemical that is necessary for human life. The amount of ammonia one would have to ingest to be harmful to a human is huge, and actually ingesting that much would be unthinkable because of the horrendous taste it would impart to the food."

This is like seeing someone sprinkle some sodium-free salt on their food and saying, "OMG that's potassium chloride! That's the lethal chemical in a lethal injection! That's going to kill you!!"
People just don't seem to care that a lot of chemicals that are popularly considered "toxic" are necessary for life or require unfathomably large doses to be harmful.

Where the hell is that quote from and is there any truth to it is what needs to be asked. To me that sounds like something a PR person would say, like in that video about Global Warming where they made the point that "CO2 is natural".
You've got more to answer for Skeeve and if you don't I'm bidding you a hearty GOOD DAY To You Sir!

Bill Maher New Rules 4/20/12

Yogi says...

>> ^Skeeve:

While I don't disagree with Maher's point, I'm getting really sick of people screaming about the ammonia used to treat the pink goo that is turned into chicken nuggets. As I said regarding another video:
"ammonia is a natural chemical that is necessary for human life. The amount of ammonia one would have to ingest to be harmful to a human is huge, and actually ingesting that much would be unthinkable because of the horrendous taste it would impart to the food."

This is like seeing someone sprinkle some sodium-free salt on their food and saying, "OMG that's potassium chloride! That's the lethal chemical in a lethal injection! That's going to kill you!!"
People just don't seem to care that a lot of chemicals that are popularly considered "toxic" are necessary for life or require unfathomably large doses to be harmful.


Where the hell is that quote from and is there any truth to it is what needs to be asked. To me that sounds like something a PR person would say, like in that video about Global Warming where they made the point that "CO2 is natural".

You've got more to answer for Skeeve and if you don't I'm bidding you a hearty GOOD DAY To You Sir!

Bill Maher New Rules 4/20/12

Skeeve says...

While I don't disagree with Maher's point, I'm getting really sick of people screaming about the ammonia used to treat the pink goo that is turned into chicken nuggets. As I said regarding another video:

"ammonia is a natural chemical that is necessary for human life. The amount of ammonia one would have to ingest to be harmful to a human is huge, and actually ingesting that much would be unthinkable because of the horrendous taste it would impart to the food."


This is like seeing someone sprinkle some sodium-free salt on their food and saying, "OMG that's potassium chloride! That's the lethal chemical in a lethal injection! That's going to kill you!!"

People just don't seem to care that a lot of chemicals that are popularly considered "toxic" are necessary for life or require unfathomably large doses to be harmful.

Event plays Borat parody as Kazakhstan national anthem

Duckman33 says...

Kazakhstan greatest country in the world.
All other countries are run by little girls.
Kazakhstan number one exporter of potassium.
Other countries have inferior potassium.

Kazakhstan home of Tinshein swimming pool.
It’s length thirty meter and width six meter.
Filtration system a marvel to behold.
It remove 80 percent of human solid waste.

Kazakhstan, Kazakhstan you very nice place.
From Plains of Tarashek to Norther fence of Jewtown.
Kazakhstan friend of all except Uzbekistan.
They very nosey people with bone in their brain.

Kazakhstan industry best in the world.
We incented toffee and trouser belt.
Kazakhstan’s prostitutes cleanest in the region.
Except of course Turkmenistan’s

Kazakhstan, Kazakhstan you very nice place.
From Plains of Tarashek to Norther fence of Jewtown.
Come grasp the might phenis of our leader.
From junction with the testes to tip of its face!

Testing a Uranium-glazed Fiesta plate for radioactivity

ghark says...

>> ^GeeSussFreeK:

>> ^ghark:
It's not made that clear in the video, but the reason he says that the plate is safe to store and handle, but not eat off is because Uranium 238 is usually an alpha emitter. Alpha radiation doesn't penetrate skin that well, but it is very dangerous when ingested and the soft tissues become exposed to it. Please correct me if I'm wrong there.

Depends on if you believe in radiation hormesis or linear no-threshold model . Most likely the truth is somewhere in-between (which by default makes hormesis "more" accurate). In the end, though, it is always best to avoid ingesting heavy metals, radioactive or not.
Learning lots about radiation as of late. There is a lot of fear factor behind it, even though our daily lives are pretty much consumed with radiation...NEATO! Bones full of radioactive carbon, potassium, you name it, you most likely have lots of radioactive isotopes of it Once again, truth stranger than fiction


I find the argument between those two models quite fascinating, they both make sense TBH. One interesting thing I found out recently was the enormous difference in radiation exposure between regular x-ray's and CT scans when visiting the doctor. It makes sense that CT scans expose you to more radiation because they make multiple passes to get a better image - however the difference astonished me - a regular chest xray would expose you to 0.06 mSv while a helical CT scan of the chest would expose you to 8 mSV - thirten hundred and thirty three times as much radiation (although the effective dose only ends up being about one hundred times as much). As a comparison point, the typical human is exposed to 2-3 mSv per year, so with a helical chest CT you're getting 3 years worth of radiation in a few seconds.

Testing a Uranium-glazed Fiesta plate for radioactivity

GeeSussFreeK says...

>> ^ghark:

It's not made that clear in the video, but the reason he says that the plate is safe to store and handle, but not eat off is because Uranium 238 is usually an alpha emitter. Alpha radiation doesn't penetrate skin that well, but it is very dangerous when ingested and the soft tissues become exposed to it. Please correct me if I'm wrong there.


Depends on if you believe in radiation hormesis or linear no-threshold model . Most likely the truth is somewhere in-between (which by default makes hormesis "more" accurate). In the end, though, it is always best to avoid ingesting heavy metals, radioactive or not.

Learning lots about radiation as of late. There is a lot of fear factor behind it, even though our daily lives are pretty much consumed with radiation...NEATO! Bones full of radioactive carbon, potassium, you name it, you most likely have lots of radioactive isotopes of it Once again, truth stranger than fiction

Martial Artist Kicks Down Banana Tree

Pat Collins interviews suspended student in a unique manner

silvercord (Member Profile)

Fatty Liver Strikes Me (Health Talk Post)

blankfist says...

Treating a fatty liver is important! First, if your doctor prescribes a medicine, most of the time it's harmful to your liver. Be a self advocate and discuss with him if the treatment is really important. Maybe taking steroids to stave off an annoying cough isn't as important as you'd like it to be.

Second, if you're a drinker, not only drink lots of water but also make sure you're taking in buttloads of potassium. If you're taking potassium supplements, please note they're probably potassium gluconate, and although the bottle says 550mg, it's really only 90mg of potassium (or 3% of your daily allowance). Don't be afraid to take more than one or two, and honestly coconut water and bananas have a high count of potassium so stock the fuck up.

Last, eat healthier. Broccoli, cabbage (or brussel sprouts) and garlic are great for fatty livers. Cut out sugar from your diet if possible. Instead of a soda, order unsweetened tea (black tea is just about as healthy as green tea!).

Elephant toothpaste

ant says...

>> ^mintbbb:

>> ^ant:
music
Is it hard to clean up that mess?

Should not be. It is hydrogen peroxide, (which breaks down into oxygen and water), colored liquid soap (or soap and food coloring) and a little bit of catalyst (like potassium iodide). Basically you just have a lot of soapy foam with a bit of chemicals in it. As long as you don't try to slurt it up. mebbe wear gloves and hope the food coloring doesn't leave stains


Thanks.

Elephant toothpaste

mintbbb says...

>> ^ant:

music
Is it hard to clean up that mess?


Should not be. It is hydrogen peroxide, (which breaks down into oxygen and water), colored liquid soap (or soap and food coloring) and a little bit of catalyst (like potassium iodide). Basically you just have a lot of soapy foam with a bit of chemicals in it. As long as you don't try to slurt it up. mebbe wear gloves and hope the food coloring doesn't leave stains



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon