May 24, 2019
Maybellene
This week during 1955 Chuck Berry released his first hit song
Maybellene (sic). Back in the time of innocent rock and roll
music and hot rods. Enjoy! LINK
Centrifugal Force vs. Centripetal Force
We see it in the spin cycle of a
washing machine or when children ride on a merry-go-round.
Centrifugal force is often confused with its counterpart, centripetal force, because they are so closely related. Centrifugal force is defined as the apparent force that is felt by an object moving in a curved path that acts outwardly away from the center of rotation. It is more inertia than a force. An example of centrifugal force is the earth's revolution around the sun. Another is passengers feeling pushed outward on a merry-go-round.
Centripetal force is defined as the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation. If you are in a spacecraft orbiting the earth, the centripetal force is the force of gravity. Another example is spinning an object on a string. The tension on the rope pulls the object in toward the center.
Centripetal force and centrifugal force are the same force, just in opposite directions, because they are experienced from different frames of reference.
Centripetal force is an actual force; centrifugal force is an apparent force. In other words, when twirling a mass on a string, the string exerts an inward centripetal force on the mass, while mass appears to exert an outward centrifugal force on the string.
Centrifugal force is often confused with its counterpart, centripetal force, because they are so closely related. Centrifugal force is defined as the apparent force that is felt by an object moving in a curved path that acts outwardly away from the center of rotation. It is more inertia than a force. An example of centrifugal force is the earth's revolution around the sun. Another is passengers feeling pushed outward on a merry-go-round.
Centripetal force is defined as the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation. If you are in a spacecraft orbiting the earth, the centripetal force is the force of gravity. Another example is spinning an object on a string. The tension on the rope pulls the object in toward the center.
Centripetal force and centrifugal force are the same force, just in opposite directions, because they are experienced from different frames of reference.
Centripetal force is an actual force; centrifugal force is an apparent force. In other words, when twirling a mass on a string, the string exerts an inward centripetal force on the mass, while mass appears to exert an outward centrifugal force on the string.
May 17, 2019
Happy Friday
“I love to laugh. It’s
the only way to live. Enjoy each day — it’s not coming back
again!” ~ Doris Day
I love to laugh and enjoy also, especially on a Happy Friday!
I love to laugh and enjoy also, especially on a Happy Friday!
Beyond Meat
Have recently read that some fast food places and TGI Friday's
are selling a meatless hamburger ($16.75 in New York). You have
likely read about the Beyond Meat company and its recent filing for a
successful IPO. Reviews are decidedly mixed and bottom line is
that the burgers are close, but not too close to regular meat
hamburgers in taste, texture, and looks. With the first two
ingredients of water and pea protein, I will be waiting for more
reviews before trying one. Of course, bacon might help.
Ingredients include:
Water
Pea protein isolate
Expeller-pressed canola oil
Refined coconut oil
- also 2% or less of:
Cellulose from bamboo
Methylcellulose
Potato starch
Natural flavor
Maltodextrin
Yeast extract
Salt
Sunflower oil
Vegetable glycerin
Dried yeast
Gum arabic
Citrus extract (to protect quality)
Ascorbic acid (to maintain color)
Beet juice extract (for color)
Acetic acid
Succinic acid
Modified food starch
Annatto (for color)
Ingredients include:
Water
Pea protein isolate
Expeller-pressed canola oil
Refined coconut oil
- also 2% or less of:
Cellulose from bamboo
Methylcellulose
Potato starch
Natural flavor
Maltodextrin
Yeast extract
Salt
Sunflower oil
Vegetable glycerin
Dried yeast
Gum arabic
Citrus extract (to protect quality)
Ascorbic acid (to maintain color)
Beet juice extract (for color)
Acetic acid
Succinic acid
Modified food starch
Annatto (for color)
Golden Gate Bridge
It did not get name due to its paint color, which many people
believe, as it was named after the Golden Gate Strait, which is
the waterway it straddles.
Wordology, By The Same Token
Token is a very old word, referring to
something that is a symbol or sign of something else. It could
be a pat on the back as a token or sign of friendship, or a
marked piece of lead that could be exchanged for money. It came
to mean a fact or piece of evidence that could be used as proof.
“By the same token” first meant, basically “those things you used to prove that can also be used to prove this.” It was later weakened into the expression that just says “these two things are somehow associated.”
“By the same token” first meant, basically “those things you used to prove that can also be used to prove this.” It was later weakened into the expression that just says “these two things are somehow associated.”
Jeans Day
According to the Levi Strauss, May 20 was the day that Levi
Strauss and Jacob Davis, the innovators behind the sturdy blue
jeans got a patent on the process of adding metal rivets to
men’s denim work pants for the first time in history.
Jeans are named after the city of Genoa in Italy, a place where cotton corduroy, called either jean or jeane, was manufactured. Prior to the Levi Strauss patented trousers, the term "blue jeans" had been long in use for various garments (including trousers, overalls, and coats), constructed from blue-colored denim.
Jeans are named after the city of Genoa in Italy, a place where cotton corduroy, called either jean or jeane, was manufactured. Prior to the Levi Strauss patented trousers, the term "blue jeans" had been long in use for various garments (including trousers, overalls, and coats), constructed from blue-colored denim.
Calm Your Heart
New research shows that negative thoughts can be physiologically
harmful, while positive thinking calms the heart rate and even
boosts the immune system and can make a significant positive
health difference.
In a study carried out by academics at the universities of Exeter and Oxford, 135 healthy were divided into five groups and played a different set of audio instructions. The team took physical measurements of heart rate and sweat response and asked participants to report how they were feeling.
Questions included how safe they felt, how likely they were to be kind to themselves and how connected they felt to others. The two groups whose instructions encouraged them to be kind to themselves not only reported feeling more self-compassion and connection with others, but also showed a bodily response consistent with feelings of relaxation and safety. Their heart rates dropped along with the variation in length of time between their heartbeats - a healthy sign of a heart that can respond flexibly to changing situations. They also showed lower sweat response.
Meanwhile, instructions that induced a critical inner voice led to an increased heart rate and a higher sweat response - consistent with feelings of threat and distress.
The three other groups listened to recordings designed to induce a critical inner voice, put them into a positive, but competitive and self-enhancing mode, or an emotionally neutral shopping scenario.
While people in both the self-compassion and positive-but-competitive groups reported greater self-compassion and decreased self-criticism, only the self-compassion groups showed the positive bodily response.
The study, Soothing Your Heart and Feeling Connected: A New Experimental Paradigm to Study the Benefits of Self-Compassion, is published in the journal Clinical Psychological Science.
In a study carried out by academics at the universities of Exeter and Oxford, 135 healthy were divided into five groups and played a different set of audio instructions. The team took physical measurements of heart rate and sweat response and asked participants to report how they were feeling.
Questions included how safe they felt, how likely they were to be kind to themselves and how connected they felt to others. The two groups whose instructions encouraged them to be kind to themselves not only reported feeling more self-compassion and connection with others, but also showed a bodily response consistent with feelings of relaxation and safety. Their heart rates dropped along with the variation in length of time between their heartbeats - a healthy sign of a heart that can respond flexibly to changing situations. They also showed lower sweat response.
Meanwhile, instructions that induced a critical inner voice led to an increased heart rate and a higher sweat response - consistent with feelings of threat and distress.
The three other groups listened to recordings designed to induce a critical inner voice, put them into a positive, but competitive and self-enhancing mode, or an emotionally neutral shopping scenario.
While people in both the self-compassion and positive-but-competitive groups reported greater self-compassion and decreased self-criticism, only the self-compassion groups showed the positive bodily response.
The study, Soothing Your Heart and Feeling Connected: A New Experimental Paradigm to Study the Benefits of Self-Compassion, is published in the journal Clinical Psychological Science.
Genes vs. Heredity
Genes or genetic mean something
related to your DNA. Hereditary means something you
inherit from your parents.
When kings die their child inherits the throne. That is hereditary, but it is not genetic, because there is no gene that makes a person royalty.
Not all genetic conditions are hereditary, such as if they are caused by a mutation they will not have been inherited.
Bottom Line, DNA is inherited, so genetic medical conditions are hereditary, but not all hereditary things are genetic.
When kings die their child inherits the throne. That is hereditary, but it is not genetic, because there is no gene that makes a person royalty.
Not all genetic conditions are hereditary, such as if they are caused by a mutation they will not have been inherited.
Bottom Line, DNA is inherited, so genetic medical conditions are hereditary, but not all hereditary things are genetic.
Lemon Freezing
If you want lemons or limes when you need them, you can freeze a
few whole and defrost them, including in the microwave for quick
use when needed. The consistency might be a bit mushy, but for
drinks or juicing it is a good solution.
US Recycling Statistics
US
recycling rate is low. Figures from the Environmental Protection
Agency show that America recycles about 34.7 percent of the
garbage it produces. The world's top recyclers, Germany,
Austria, Wales, and South Korea report a rate between 52 and 56
percent.)
Until 2018, China took 40 percent of the US recycled paper, plastic, and metal, but in January of that year, China imposed strict new rules on the levels of contamination. Because of that, and a lack of suitable destinations closer to home, many cities have been forced to incinerate or stockpile recyclables until they can find a better solution.
The nation recycles less than 10 percent of its plastic, compared to 67 percent for paper materials, 34 percent for metals, and 26 percent for glass. China's restrictions have especially affected plastic. Exports of scrap plastic to China were valued at more than $300 million in 2015; they amounted to $7.6 million in the first quarter of 2018, down 90 percent from the year before.
Until 2018, China took 40 percent of the US recycled paper, plastic, and metal, but in January of that year, China imposed strict new rules on the levels of contamination. Because of that, and a lack of suitable destinations closer to home, many cities have been forced to incinerate or stockpile recyclables until they can find a better solution.
The nation recycles less than 10 percent of its plastic, compared to 67 percent for paper materials, 34 percent for metals, and 26 percent for glass. China's restrictions have especially affected plastic. Exports of scrap plastic to China were valued at more than $300 million in 2015; they amounted to $7.6 million in the first quarter of 2018, down 90 percent from the year before.
May 10, 2019
Happy Friday
Life advice is like
airplane advice, "Make sure you have your own mask on before
helping others with theirs."
I am always ready to help others celebrate a Happy Friday!
I am always ready to help others celebrate a Happy Friday!
Asteroids, Comets, Meteors, and Meteorites
Asteroid
is a rocky object that orbits the sun in a circular fashion.
Comet is an icy body object that orbits the sun in an elliptical and possible unstable fashion.
Meteor is an object that has entered earth's atmosphere.
Meteorite is a meteor that has impacted the earth's surface.
Comet is an icy body object that orbits the sun in an elliptical and possible unstable fashion.
Meteor is an object that has entered earth's atmosphere.
Meteorite is a meteor that has impacted the earth's surface.
Chocolate and Your Brain
Italian scientists have found evidence that a
daily dose of cocoa acts as a dietary supplement to counteract
different types of cognitive decline. The team found that
regularly eating cocoa was linked to improvements in working
memory and visual information processing and cocoa could be
particularly beneficial for certain people.
Cocoa is the dried and fermented bean from the cocoa tree used to make chocolate treats. Over the years, it has been found that a range of naturally occurring chemicals in the cocoa bean have therapeutic effects. For example, polyphenols in dark chocolate were found to increase calmness and contentedness and flavanols were able to reverse age-related memory decline. Chocolate also contains theobromine, a toxic chemical, but to be at risk of poisoning yourself, you would have to eat about 85 full sized chocolate bars in one sitting.
In the study, the team looked through the literature for effects of acute and chronic administration of cocoa flavanols on brain activity and, more specifically, what happens if you do this over a long period of time. The studies used to perform the review mainly required the subjects to consume a low, medium or large amount of cocoa in the form of a chocolate drink or bar for a period of between five days and three months.
The scientists found that there was enough evidence to support the health claims attributed to cocoa, and, in particular, the flavanol compounds it contains. They noticed enhancements in working memory performance and improved visual information processing after consuming cocoa flavanols. The benefits varied depending on the demographic being tested.
For the elderly, long term ingestion of cocoa flavanols improved attention, mental processing, working memory, and verbal fluency. It was most beneficial in those who had mild cognitive impairments or the beginnings of memory loss.
For healthy people, without the beginnings of memory loss, cocoa could also enhance normal cognitive functioning and have a protective role on cognitive performance.
For women, eating cocoa after a night of total sleep deprivation counteracted the cognitive impairment associated with no sleep. Promising results for people that suffer from chronic sleep deprivation or work different shift patterns.
"If you look at the underlying mechanism, the cocoa flavanols have beneficial effects for cardiovascular health and can increase cerebral blood volume. This structure is particularly affected by ageing and therefore the potential source of age-related memory decline in humans."
"Regular intake of cocoa and chocolate could indeed provide beneficial effects on cognitive functioning over time," said the researchers.
Cocoa is the dried and fermented bean from the cocoa tree used to make chocolate treats. Over the years, it has been found that a range of naturally occurring chemicals in the cocoa bean have therapeutic effects. For example, polyphenols in dark chocolate were found to increase calmness and contentedness and flavanols were able to reverse age-related memory decline. Chocolate also contains theobromine, a toxic chemical, but to be at risk of poisoning yourself, you would have to eat about 85 full sized chocolate bars in one sitting.
In the study, the team looked through the literature for effects of acute and chronic administration of cocoa flavanols on brain activity and, more specifically, what happens if you do this over a long period of time. The studies used to perform the review mainly required the subjects to consume a low, medium or large amount of cocoa in the form of a chocolate drink or bar for a period of between five days and three months.
The scientists found that there was enough evidence to support the health claims attributed to cocoa, and, in particular, the flavanol compounds it contains. They noticed enhancements in working memory performance and improved visual information processing after consuming cocoa flavanols. The benefits varied depending on the demographic being tested.
For the elderly, long term ingestion of cocoa flavanols improved attention, mental processing, working memory, and verbal fluency. It was most beneficial in those who had mild cognitive impairments or the beginnings of memory loss.
For healthy people, without the beginnings of memory loss, cocoa could also enhance normal cognitive functioning and have a protective role on cognitive performance.
For women, eating cocoa after a night of total sleep deprivation counteracted the cognitive impairment associated with no sleep. Promising results for people that suffer from chronic sleep deprivation or work different shift patterns.
"If you look at the underlying mechanism, the cocoa flavanols have beneficial effects for cardiovascular health and can increase cerebral blood volume. This structure is particularly affected by ageing and therefore the potential source of age-related memory decline in humans."
"Regular intake of cocoa and chocolate could indeed provide beneficial effects on cognitive functioning over time," said the researchers.
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