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#Post#: 765--------------------------------------------------
Foucault Pendulum
By: AGelbert Date: February 9, 2014, 6:21 pm
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Foucault Pendulum
HTML http://www.youtube.com/watch?v=iqpV1236_Q0&feature=player_embedded<br
/>
This pendulum provides visual proof of the Earth's rotation.
Designed by Jean Leon Foucault in 1851, it is called the
Foucault (foo-koh) Pendulum.
Pendulum: a body suspended from a fixed point so as to swing
freely to and fro under the action of gravity.
How does the Foucault Pendulum work?
Once the pendulum is set in motion, it continues to swing back
and forth in a vertical plane defined by the track of the ball
and cable.
The direction of swing is constant. Although gravity is pulling
down on the ball and tension in the cable is holding it up,
there is no force acting to change the direction of swing.
Why does it appear to be moving in a circle?
The apparent change in direction of swing is related to the
perspective of the observer. Because no force is acting to
change the direction of swing, it doesn't change. Instead, the
floor, the observer, and the Earth's surface are turning beneath
the pendulum.
The Earth's spin is essential to life.
Night and day, darkness and light, cooling and warming- these
are the result of the spinning Earth.
The Earth's spin contributes to the movement of ocean and wind
currents, which in turn affect climate, weather, food
production, and our everyday lives.
The pendulum's direction of swing does not spin with the Earth.
The hardware holding the pendulum is attached to the roof of
the Museum and moves with the Earth. But with flexible wire for
support, the pendulum swings back and forth in the same plane.
The pendulum is not a perpetual motion machine.
Because of air friction and gravity the pendulum would
eventually stop swinging, but a magnet encircling the cable
pulls on the cable with each swing. Electric current controlling
the magnetism is turned on and off with each swing of the
pendulum.
The pendulum is not a clock.
However, the time it takes to go around the circle is
predictable. Imagine yourself hovering above the Earth's axis at
the North or South Pole. The Earth below appears to be spinning
like a merry-go-round. The pendulum would complete the circle in
24 hours.
Now imagine yourself hovering above the equator.
The Earth appears to be rolling like a barrel. As the pendulum
swings, it does not move around the circle at all. Latitude
determines the length of time required for a complete trip
around the circle. Here in San Diego, the pendulum makes its way
around the circle in 44˝ hours.
I don't know about you but this stuff fascinates me. ;D
#Post#: 784--------------------------------------------------
Doomstead Diner INFECTED! Avoid Until Further Advised!
By: AGelbert Date: February 23, 2014, 2:40 pm
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[move]I am in the process of eliminating ALL links to the
Doomstead Diner. It is infected with a HIGH RISK type Trojan
virus. ??? :P >:([/move]
[img width=640
height=980]
HTML http://www.createaforum.com/gallery/renewablerevolution/3-230214153701.png[/img]
#Post#: 818--------------------------------------------------
The Ax falls at IBM
By: AGelbert Date: February 27, 2014, 6:31 pm
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[img width=640
height=380]
HTML http://www.siliconbeat.com/wp-content/uploads/2012/09/layoff-thumb2.jpg[/img]
[move]IBM -------> Big (Butcher) Blue [/move]
[quote]Weeks of speculation and nervous anticipation of expected
job cuts at IBM’s Essex Junction facility ended Thursday when
Gov. Peter Shumlin confirmed layoffs were beginning, drawing a
sharp response from his political opposition.
“I have been advised by leadership at the IBM Vermont plant in
Essex Junction of layoff notifications there as part of a global
workforce reduction,” Shumlin said in a statement sent at 9:40
a.m.
He said he was told the number of workers affected was about
one-third the number let go in June,, “although we will not know
the exact number of affected workers until the process is
completed and a state notice is filed by the company next
month,” Shumlin’s statement said. The June layoff affected 419
workers.[/quote]
HTML http://www.burlingtonfreepress.com/article/20140227/BUSINESS/302270022/Job-cuts-confirmed-IBM-Essex-Junction?odyssey=mod%7Cbreaking%7Ctext%7CFRONTPAGE
#Post#: 830--------------------------------------------------
Why you shouldn't be too near a building fire...
By: AGelbert Date: February 28, 2014, 2:22 pm
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HTML http://www.youtube.com/watch?v=DAGuobwtFSU&feature=player_embedded
FORMER HOTEL IN AINSWORTH BC BURNS TO THE GROUND - TMTV/BCTV
Kootenays June 3, 2010
#Post#: 1034--------------------------------------------------
Cat Videos are good or you. REALLY!
By: AGelbert Date: May 2, 2014, 9:39 pm
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Finally, science confirms what we all already knew in our
hearts—videos of cats unrolling (and then re-rolling) toilet
paper are good for our brain health!
HTML http://www.pic4ever.com/images/128fs318181.gif
In fact, anything that makes us laugh is good for our brains.
According to new research from Loma Linda University in Southern
California, a big fit of laughter (you know, the kind where you
think you might pee your pants?) gives your brain a great
workout.
For the study, researchers measured brain activity in
participants while they watched a laughter-inducing 20-minute
video. And from it, they pinpointed the optimal laugh for the
brain—30-40 hertz frequency, which matches brain wave
frequencies seen in people who reach a “true state of
meditation.”
“This allows for the subjective feeling states of being able to
think more clearly and have more integrative thoughts,” explains
study co-author Lee Berk. “This is of great value to individuals
who need or want to revisit, reorganize, or rearrange various
aspects of their lives or experiences, to make them feel whole
or more focused.”
And that’s not all. The participants who watched the funny video
also scored higher on memory tests than those who didn’t watch
it, and they also had a significant decrease in cortisol, a
stress hormone that can lead to high blood pressure, heart
disease, and diabetes.
And on that note, have you seen the video of the cat in a shark
costume on a Roomba? (at link) (You’re welcome!).
Read more:
HTML http://www.care2.com/greenliving/why-funny-cat-videos-are-good-for-your-brain.html#ixzz30cGVk1Vc
#Post#: 1092--------------------------------------------------
Re: Non-routine News
By: AGelbert Date: May 11, 2014, 1:12 am
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HTML http://www.youtube.com/watch?v=9XT4SbajwFw&feature=player_embedded<br
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#Post#: 1093--------------------------------------------------
Re: Non-routine News
By: AGelbert Date: May 11, 2014, 1:20 am
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HTML http://www.youtube.com/watch?v=1C6l94JRqYs&feature=player_embedded<br
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#Post#: 1146--------------------------------------------------
Does Sound Travel at the Same Speed Through Different Materials?
By: AGelbert Date: May 18, 2014, 10:21 pm
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Does Sound Travel at the Same Speed Through Different
Materials?‏ ???
Sound travels 17 times faster when going through metal than it
does when
going through air.
Sound is the result of molecules interacting or disturbing one
another, so
sound does not travel at the same speed through different
materials because
there are varying amounts of room between the molecules of
different types
of materials. For example, sound travels about 17 times faster
when going
through metal than it does through air — more than 10,000 mph
(16,093
km/h) through metal, compared with about 761 mph (1,224 km/h)
through air.
In water, sound travels about four times faster than through
air, at about
3,000 mph (4,828 km/h). Sound travels more slowly through air
because air
consists mainly of nitrogen and oxygen, whose molecules are not
arranged as
rigidly as those in materials such as water or steel. The more
rigidity in
a material, the faster sound travels because the molecules
interact with
one another more.
Read More:
HTML http://www.wisegeek.com/does-sound-travel-at-the-same-speed-through-different-materials.htm?m
#Post#: 1196--------------------------------------------------
A month in the springtime in Colchester, Vermont: Police Report
By: AGelbert Date: May 23, 2014, 11:02 pm
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Police Department—Jennifer Morrison, Police Chief
Numbers and Facts
In the past month, we have responded to over 900 calls for
service, and we had 422 contacts through motor vehicle stops. We
arrested 17 people
HTML http://www.smiley-lol.com/smiley/exagerent/police/enprison.gif<br
/>for a variety of crimes, including DUI, domestic assault,
reckless endangerment, unlawful restraint, and more.
The busiest days of the week for calls for service were
Wednesday, Thursday, and Friday. The most common reasons for
calls this month were suspicious circumstances
HTML http://www.freesmileys.org/smileys/smiley-scared005.gif,
public
or medical assists
HTML http://www.freesmileys.org/emoticons/emoticon-object-004.gif,<br
/>motor vehicle crashes, and motor vehicle complaints.
Our marine unit is back on the water. As the weather warms, we
expect activity on the lake to pick up significantly.
Community Outreach Activities
In the past month, CPD has participated in the following: mock
crash at the high school,
Rape Aggression Defense class #2 of 2014 [img width=50
height=70]
HTML http://www.freesmileys.org/emoticons/emoticon-games-022.gif[/img],<br
/>Drug Take Back Day, child safety seat inspections, special
traffic details, and more.
For further information or to comment, please call Linda
Kingston at 264-5509.
#Post#: 1197--------------------------------------------------
Now these look like homey homes for happy homebodies!
By: AGelbert Date: May 23, 2014, 11:15 pm
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HTML https://www.youtube.com/watch?v=j-i5pA-ocmY&feature=player_embedded
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