What did you learn today?

[D M C]

I learned that an ice sheet breaking off and drifting out to sea raises sea levels. I thought that since it is already floating it would have no impact on sea level. That isn't the case. Since an iceberg is fresh water floating in sea water there is a specific gravity difference that causes a sea level rise of about 3% by volume once the ice melts. Not much, but a difference none the less.

EDIT: This is poorly worded, actually a 3% increase in volume of the liquid as a result of the melting is realized.
Water expands about 9% when it freezes.
Take an ice berg that's made of 1000 gallons of fresh water. It'll be about 1090 gallons of ice. It will weigh 8,350 pounds.

Float it in the ocean. It will displace 8350 pounds of salt water, which is 970 gallons.

When it melts, 970 gallons will no longer be displaced, but 1000 gallons of fresh water was added. Net change of nearly zero, but it's not a zero sum gain- it's 30 gallons.

You had me at "specific gravity." You lost me at "EDIT:."

 

[shadowtippy]

I was reminded once again about how cool people here are, of course there are one or two buttheads.

There is no need to get personal.

 

[slobake]

There is no need to get personal.

You don't like it when I refer to you as cool?

 

[sissy kathy]

You had me at "specific gravity." You lost me at "EDIT:."

Skip the first sentence of the edit and try again. It illustrates the added volume with an example.

 

[shadowtippy]

You don't like it when I refer to you as cool?

Thanks. I am not accustomed to being in that category. The other usually fits.

 

[slobake]

Thanks. I am not accustomed to being in that category. The other usually fits.

IGNOMES UNITE!

 

[PillO]

IGNOMES UNITE!

Dyslexics UNTIE!

 

[hbarcat]

What did you learn in school today?

written by Tom Paxton
performed by Pete Seeger



What did you learn in school today
Dear little boy of mine?
What did you learn in school today
Dear little boy of mine?

I learned that Washington never told a lie
I learned that soldiers seldom die
I learned that everybody's free
And that's what the teacher said to me
Chorus
That's what I learned in school today
That's what I learned in school

What did you learn in school today
Dear little boy of mine?
What did you learn in school today
Dear little boy of mine?
I learned that policemen are my friends
I learned that justice never ends
I learned that murderers die for their crimes
Even if we make a mistake sometimes
Chorus

What did you learn in school today
Dear little boy of mine?
What did you learn in school today
Dear little boy of mine?
I learned our Government must be strong;
It's always right and never wrong;
Our leaders are the finest men
And we elect them again and again
Chorus

What did you learn in school today
Dear little boy of mine?
What did you learn in school today
Dear little boy of mine?
I learned that war is not so bad;
I learned about the great ones we have had;
We fought in Germany and in France
And someday I might get my chance
Chorus

 

[PWRL]

Today I learned that there's a big fire out by my cousin's ranch in Arizona. I wish I was a big old rain cloud.

 

[Tom Bomb]

Oil end An emu needs to play the drums. I know how she feels

 

[Tom Bomb]

I lint two-door What science can tell us about the music of love.

[…] human voices that are less modulated and more monotonous communicate sadness, and this means we perceive music that mimics these contours also as sad.

Studies suggest humans have evolved to find low voices sexy […] And music that imitates low tones can evoke similar feelings.

"When people are feeling sexy their voices are generally lower pitched," said Dr Garrido. "And music with low pitch and a slow but rhythmic tempo comes across as romantic and sexy."

Highlander Invalid Link Removed hand-eye luna Einstein's light bending theory directly observed in distant stars for first time is making waves.

Astronomers have used the gravitational warping of light, predicted by Einstein nearly a century ago, to measure the mass of a distant star for the first time.

Key points

• The effect of gravity on light can be used to measure the mass of objects in space
• Einstein said it would be impossible to observe this phenomenon with distant stars
• Study provides clues about the fate of our own Sun

The team, led by Kailash Sahu of the Space Telescope Science Institute in Baltimore, measured the mass of a white dwarf star called Stein 2051 B as it passed in front of another more distant star — an event Einstein thought would be impossible to observe […]

 

[Inkdork]

Today I learned that snowsuit *pron* is a real thing.

 

[One Drop]

A few days ago I learned a lot of new things about our blood and what it does and how it does it in our bodies, from an excellent BBC 4 documentary:

 

[Tom Bomb]

I just got a good gobfull of sex and drugs and rock 'n' roll. No, really. A little more lernin Just tuned in to The science of hedonism. Truly fascinating. There will be a transcript too, with a bit of luck, later on.

 

[PWRL]

I learned this: Central Pangean Mountains - Wikipedia
I had previously known that the Appalachians and the Scottish Highlands were part of the same ancient range, but I didn't know that Morocco was involved. That's pretty amazing.

 

[Tom Bomb]

Arlene if ever you need a quick million, you can always count on the pokies.

Dr Karl: How to win at the pokies​

 

[Munjibunga]

Today I learned that William Shatner likes bacon.

 

[Alkali Ike]

Today I learned that William Shatner likes bacon.

Ok now that's amusing.

I learned the meaning of "gaslighting" or "gas lighting". Enough said.

 

[Munjibunga]

Ok now that's amusing.

I learned the meaning of "gaslighting" or "gas lighting". Enough said.

I learned that after hearing Steely Dan's "Gaslighting Abbie." I had to Google it.

 

[the harp unstrung]

Today I learned that our local Michael's (crafty, hobby, etc.) store employs 4 young people with Multiple face piercings and BLUE, and GREEN, and ORANGE, and MORE SUPER GREEN hair...and Every one of them was a Remarkable employee who was happy to go above and beyond their pay grade to help me frame a beautiful picture of my Beautiful grand daughters!
I wrote a Highly complimentary email to the local store, and to corporate, mentioning each by name.
It's been a while since I was that impressed by a 'retail' encounter!