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vil (Member Profile)

Trump: Biden Will "listen to the scientists"

noseeem says...

some brains are more prone to 'rot' than others. belief is unlikely as a leading cause. EX: google: Nobel winner in 'racist' claim row

w/o other examples would point out some astrophysics theories resemble Hindu theology. some religious practices are supported by scientific studies in the area of psychology.

additionally, some poets were errorless when pointing out the truth of human behavior before there was scientific evidence to prove the stanzas.

seemly, there are diamonds and ore in the mines of all people. (note the prior source for verification)

humility can keep all on their toes.

we all make mistakes...hell! voted for reagan once!

being wrong is the only thing most folks can count on. don't know anyone hasn't done this kinda thing ->please Google: Steve Earle & The Dukes - "If I Could See Your Face Again" and listen to one of the world's greatest regrets

listening to that, thinking of covid and the potus' ultimate 'success' rate, hard to miss the truth of it all

Primitive Technology: 4 years of primitive technology

Payback says...

I still want him to make an April 1 video where he takes a bunch of mud, sand, and unsmelted ore, mixes it up, kiln fires it, and smashes apart the outer layer revealing a Nokia 3310.

Freezing 200,000 Tons of Lethal Arsenic Dust

Sagemind says...

"In the summer of 1935, C.J. "Johnny" Baker and H. Muir staked the original 21 "Giant" claims for Bear Exploration Company. The claims were on Great Slave Lake's Back Bay and along what is now the historic Ingraham Trail.

By 1937, Yellowknife Gold Mines Ltd. acquired Burwash's assets. From these, the subsidiary Giant Yellowknife Gold Mines Ltd was created. The company fell on hard times and by 1940, operations eventually came to a standstill. Frobisher Explorations took over the site in 1943. However, the advent of World War II halted the operation once again. Gold was not a priority in times of war, and there was a shortage of men to work the site.

Soon after the war ended, Giant Mine officially opened, and production moved into full swing. The first gold brick was poured on June 3, 1948.

From May to December 1948, the mine produced 8,152 ounces of gold from 49,985 tonnes of ore. With the nearby Con Mine also operating, Yellowknife was experiencing the rapid growth associated with a booming mining industry.

Those original claims would lead to the production of seven million ounces of gold and one of the longest continuous gold mining operations in Canadian mining history; however, they also led to a legacy of contamination."

http://www.aadnc-aandc.gc.ca/eng/1100100027388/1100100027390

Rethinking Nuclear Power

transmorpher says...

One of the things that makes me anti-nuclear is the radioactive and toxic waste. Weaponization, accidents and disasters all have a chance to happen, but are hypothetical. However, nuclear waste is created when things are running perfectly as planned, it's part of the plan.

http://www.world-nuclear.org/information-library/nuclear-fuel-cycle/nuclear-wastes/radioactive-waste-management.aspx
"Direct disposal (after storage) to a geological repository. The material has very long-lived radioactivity, and will take about 300,000 years to reach the same level as the original ore.
Aqueous reprocessing to remove only uranium and plutonium. The material then only takes about 9000 years to reach the same level of radioactivity as the original ore."

I love how they say "only about 9000 years" like it's not a big deal hahah

Renewable green energy all the way :-)

notarobot said:

I used to be anti-nuclear. The basis for this was one part "oh no, meltdowns!" and one part anti-war. The second part of this concern happened when I learned that the material in warheads is refined in nuclear reactors.

As I continued my research I learned that newer reactors can be built that do not enrich weapons-grade material. They can't be used for bombs.

With the new reactor technology, I was left with only the concern around meltdowns. Even with older technology, meltdowns are very rare. Newer technology---like what's mentioned in this video--is even safer..

Now, I'm an old hippie, and I still prefer solar and wind (in my ideal world) but my concern over nuclear was pretty much put to rest with all that I've learned.

As long as the powerplants are designed in such a way that they do not create material that can be weaponized, I'm pretty much okay with it.

>250000000 Gal. Of Radioactive Water In Fl. Drinking Water

oritteropo says...

To answer your question in the description, the waste water contains phosphogypsum which is a radioactive byproduct from the production of phosphate (sulphuric acid is reacted with phosphate rock to produce phosphoric acid used for fertilizer production).

The radioactivity comes from naturally occurring uranium and radium in the phosphate ore. Central Florida phosphogypsum averages 26 pCi/g radium, and the EPA prohibites its use, but further north in Florida the phosphogypsum has an average concentration of less than 10 pCi/g radium which can be used as an agricultural amendment, but for no other use.

Also, the European news that I saw reported 980 million litres of contaminated water which is only slightly higher than the 225 million u.s. gallons reported elsewhere.

thegrimsleeper (Member Profile)

oritteropo says...

Thanks

There's actually a bit more to the chemistry of smelting than he mentions. It's not only the higher temperatures that are important, carbon monoxide is used to extract the base metal from the ore (which is usually an oxide).

If he's been relying on ancient sources, they may well have not mentioned the chemistry since oxidation and reduction were only really properly described in the 18th century (oxygen was discovered in 1772) and not all historians have a good grounding in chemistry.

thegrimsleeper said:

This is a great video and one of my favorite things about it is that his video description answers the very question I had immediately after watching it. I had never really wondered why people use charcoal instead of just the wood it's made from.
*promote

How to make a Hattori Hanzō katana (Kill Bill): Man at Arms

artician says...

Even if they screwed up the process, the process is what I love to see. I'm a fan of their art in general but I will eat up anything that shows me how to take raw materials of the earth and transform them into tools, process, and end-result. Very cool to see the slag and ore handling, and know how they constructed everything from scratch.

Cellphone Has Incredible Effect on Magnetic Ore

blackfox42 (Member Profile)

The Wreck of the Edmund Fitzgerald

eric3579 says...

The legend lives on from the Chippewa on down
of the big lake they called "Gitche Gumee."
The lake, it is said, never gives up her dead
when the skies of November turn gloomy.
With a load of iron ore twenty-six thousand tons more
than the Edmund Fitzgerald weighed empty,
that good ship and true was a bone to be chewed
when the "Gales of November" came early.

The ship was the pride of the American side
coming back from some mill in Wisconsin.
As the big freighters go, it was bigger than most
with a crew and good captain well seasoned,
concluding some terms with a couple of steel firms
when they left fully loaded for Cleveland.
And later that night when the ship's bell rang,
could it be the north wind they'd been feelin'?

The wind in the wires made a tattle-tale sound
and a wave broke over the railing.
And ev'ry man knew, as the captain did too
'twas the witch of November come stealin'.
The dawn came late and the breakfast had to wait
when the Gales of November came slashin'.
When afternoon came it was freezin' rain
in the face of a hurricane west wind.

When suppertime came the old cook came on deck sayin'.
"Fellas, it's too rough t'feed ya."
At seven P.M. a main hatchway caved in; he said,
"Fellas, it's bin good t'know ya!"
The captain wired in he had water comin' in
and the good ship and crew was in peril.
And later that night when 'is lights went outta sight
came the wreck of the Edmund Fitzgerald.

Does any one know where the love of God goes
when the waves turn the minutes to hours?
The searchers all say they'd have made Whitefish Bay
if they'd put fifteen more miles behind 'er.
They might have split up or they might have capsized;
they may have broke deep and took water.
And all that remains is the faces and the names
of the wives and the sons and the daughters.

Lake Huron rolls, Superior sings
in the rooms of her ice-water mansion.
Old Michigan steams like a young man's dreams;
the islands and bays are for sportsmen.
And farther below Lake Ontario
takes in what Lake Erie can send her,
And the iron boats go as the mariners all know
with the Gales of November remembered.

In a musty old hall in Detroit they prayed,
in the "Maritime Sailors' Cathedral."
The church bell chimed 'til it rang twenty-nine times
for each man on the Edmund Fitzgerald.
The legend lives on from the Chippewa on down
of the big lake they call "Gitche Gumee."
"Superior," they said, "never gives up her dead
when the gales of November come early!"

Replacing with proper embed. Matched from previous thumbnail *backup=[...snipped...]

How To Beat Flappy Bird (Best Method)

Chairman_woo says...

7 million views = about $7000 in youtube ad revenue. Sound investment I'd say!

Also that is actually a pretty old handset, probably only worth £50-100ish now at most.


Now if we're talking about the Congolese workers who mined the ore and the Chinese sweatshop staff that assembled it that's another matter, but then that goes for anyone who owns or has owned a "smartphone". How one chooses to use it irrelevant, smashing it with a hammer is no different to most of the mindless procrastination they get used for anyway.

It's a highly disposable industry and this beats just languishing in a drawer somewhere or being dropped down the toilet etc.

A10anis said:

Well, it would appear that he can afford another phone or, maybe, this one was stolen. Either way, not funny considering how many ppl would like to own one, but can't afford it.

QI - Space Porn

James Hansen on Nuclear power and Climate Change

ghark says...

Reactors don't produce weapons grade plutonium? Then where is weapons grade plutonium made? I think you'll find that it's made in exactly the same reactors as there is no real distinction between a reactor used for power generation and weapons generation other than in name.

"Uranium ore contains only about 0.7% of the fissile isotope U235. In order to be suitable for use as a nuclear fuel for generating electricity it must be processed (by separation) to contain about 3% of U235 (this form is called Low Enriched Uranium - LEU). Weapons grade uranium has to be enriched to 90% of U235 (Highly Enriched Uranium or HEU), which can be done using the same enrichment equipment. There are about 38 working enrichment facilities in 16 countries"
http://www.cnduk.org/get-involved/parliamentary/item/579-the-links-between-nuclear-power-and-nuclear-weapons

The point is that continuation of current tech makes it a lot more economical to produce weapons tech, whether that be weapons grade plutonium or depleted uranium (DU). Reactors can cost upwards of ten billion dollars to build, why would a weapons manufacturer want to pay for one of those out of their own pocket when they can have the taxpayer's pay for nuclear power plants that can produce what they need?

"Every known route to bombs involves either nuclear power or materials and technology which are available, which exist in commerce, as a direct and essential consequence of nuclear power"
- Dr. Amory Lovins (from NEIS)

In terms of renewables:, the 'new' renewables only account for about 3% of total energy use, so if that's what he meant then he's not far off. Stats from IEA, however, state that wind has had an average growth rate of 25% over the past five years, while solar has averaged an annual growth rate of over 50% in the same period. So their impact is increasing fairly rapidly. So I'm not sure why he's so pessimistic about them when the IEA is not.

Have environmental groups specifically spoken out against the type of nuclear reactors he is talking about? Which ones?

GeeSussFreeK said:

I think that you will find reactors don't produce weapons grade plutonium, rather, they produce a grade of plutonium known as reactor grade. Weapons grade plutonium is upwards of 95% Pu239. Reactor grade plutonium is what is known as weapons usable, not weapons ready. This is because of the high contamination factor of Pu240, Pu241, and Pu242. These heavier breads of Pu have both high spontaneous fission rates (bad for your fission weapon), and considerable heat, enough so to make weapons fabrication a problem (is it bad when your closed weapons device needs ventilation to not melt itself). While these problems are addressable in advanced weapons platforms, outside of well established nuclear weapons programs, making weapons from them is very challenging.

The main trouble, however, I think is economics, and nuclear is forced to internalize many of their impacts where as other solutions, mainly fossil fuels, do not. That is a pretty key competitive disadvantage.

Also note that electricity is only a fraction of total power, total power includes many non-electrical uses, most notably motor vehicles via liquid fuels. When you look at solar in this light, it represents a sub-fraction of a percent. So 5% of annual solar electrical generation is only a small part of a larger energy picture, and picture which also needs to be weighted against the rest of the world for which solar provides very little power. This isn't an attack on solar, it is a bringing to light of how vast the gulf is to address climate issues with any one technology.

So I think you will find that he isn't off by orders of magnitude, rather, he was being pretty generous to the total amount of energy produced by solar and wind world wide, and climate issues and emissions are world issues.

Key World Energy STATISTICS IEA:

http://www.iea.org/publications/freepublications/publication/kwes.pdf

(I trust the IEA's numbers)

But I share the sentiment that we need to reduce coal and gas to address climate concerns. The fact that German emissions have risen for 2 years in a row is troubling to say the least. I consider France and Sweden to be better models, lower CO2 per capita and electrical prices in both cases compared to Germany, and both heavy nuclear users...with Sweden using a fair deal more hydro power than France. Nuclear and hydro are the proven heavy lifters in the area of CO2 reductions, which is why I think his criticism of environmental groups in addressing climate issues is justified as they generally oppose both.

CLIMATE CHANGE AND NUCLEAR POWER 2012 IAEA:

http://www.iaea.org/OurWork/ST/NE/Pess/assets/12-44581_ccnp2012_web.pdf

Bike To The Future



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