I think about things that maybe most people wouldn't worry about. We live in a violent universe. Earth recently had a near-miss with a bus-sized asteroid that could have wiped out a major city with a ten megaton blast. However, chances are it would have just exploded over an ocean someplace. It is unlikely to hit a city. However, there are also more asteroids out there.
The last time the supervolcano in Yellowstone National Park erupted 640,000 years ago, it destroyed life in several nearby states. By comparison, this makes the asteroid look like small potatoes. These explosions are so big they create their own weather over hundreds of miles. We are "overdue" for another eruption, which could wipe out half the country, but the experts say that it will not happen any time soon. I heard that NASA is trying to find a way to relieve some of the pressure below the park.
In 535 AD, multiple volcanic eruptions, and possibly a supervolcano, blackened out the sky everywhere on earth, creating an 18-month winter.
A couple of times in Earth's history the whole planet froze solid with a layer of ice a mile thick.
Over hundreds of millions of years, there have been several mass extinctions on planet Earth. At least one may have been caused by a gamma-ray burst. Gamma-ray bursts are massive amounts of deadly radiation from space given off by black hole formation. Although such events hitting Earth are extremely rare, they have the potential to wipe out all life on Earth.
The Earth was hit by an object the size of the planet Mars 4.5 billion years ago. This is how we got the Moon, which is made of material from the Earth's crust.
These catastrophic events are fortunately very rare.
We have been technically living in an ice age for 2.5 million years. There have been several periods of massive glaciation in human history. These usually had devastating effects on the human population. The human race was almost wiped out 50,000 years ago. All of human civilization, such as farming, writing, working with metals, building cities, occurred during a "brief" 10,000 year warm period after the last period of glaciation. We have been fortunate to live in a "brief" time of very stable climate. No matter what humans do with CO2, and we are going to run out of fossil fuels in 100 years anyway, we expect another period of glaciation 10,00 years from now.
The Earth's orbit around the sun is not entirely stable. The slow precession of the orbit causes dramatic effects on the climate.
Although you could argue that rising CO2 is an issue in the short run, over the long term the decline of CO2 has been very dramatic and looks very bleak. Over the last 40 million years atmospheric CO2 levels have been in a nosedive. This is because natural processes sequester CO2 in the ground. During the last period of glaciation, CO2 levels got down to a record low of 180 parts per million, which is just barely above the level where all terrestrial plants die off from a lack of CO2. If humans are around for another 10,000 years then we will have to deal with this problem.
The New Concept Everyone in Washington Is Talking About
How exactly did great-power competitiongo from being an "arcane term" a few years ago to "approaching a cliché"?
How Mosquitoes Changed Everything
They slaughtered our ancestors and derailed our history. And they're not finished with us yet.
Almost every time they do something like this, they lose money. They give us movies that people don't want to see.
We grew up in a time when most everyone treated each other with respect. We didn't eat out much just once in awhile when mom & dad took us out for a treat. We drank homemade Kool-Aid, ate peanut butter & jelly sandwiches, hot dogs, but mostly home made meals consisting of a lot of grilled cheese, hamburgers and spaghetti. Our treat was homemade chocolate chip cookies.
We grew up during a time when it was simple. We went outside to play. We couldn't wait to get home from school and "change" into our play clothes, because you didn't play in school clothes, because they were so full of dirt and who knows what else. We were not afraid to play outside and get dirty, if you were so clean you didn't NEED to take a bath, yup a bath, showers were something people had in hotels attached to the tube there..
We played ball, rode bikes, Big wheels,climbed trees, built forts, jumped rope, kick ball, Jax, played football at the neighborhood playground, kick the can, always played outside till dark. You never feared going to school, never had to prepare for a shooting. You never played inside the house, or even had snacks between meals. A time when there was no bottled water and we turned on the hose to get a drink. No cable t.v., just 3 or so channels with an antenna on the roof, no remote controls, no cell phones, no internet, or YouTube. A landline phone we had to dial with a 5 foot cord is all we knew. And we shared it with everybody in the house. And if you had a friend more than 5 miles away well that's long distance. So forget it. Start writing a letter.
Friends were kids who lived near you and you could walk to each other's house, and did multiple times a day.. If you wanted to play with one of your friends you would go to the house stand on the sidewalk and yell there name until either they came running out, or their parent came out and said "No not today", at which time you dropped your head and hashed our PLAN B, because going back home and sitting in the house was the LAST thing you wanted to do, that was what you did ONLY when you got into trouble or you where sick!! Both were torture because you could sit in your window and see your friends outside having fun "without you"!!We watched some cartoons on Saturday morning. But they were taken away if on restriction. If you were bad in school, you got in trouble in school and when you got home you got in trouble again, because your parents already knew. We would ride bikes for hours and talk until the street lights came on, because that was your "curfew". You could trust your neighbors. You felt safe.
You LEARNED from your parents instead of disrespecting them and treating them as if they knew nothing. Parents took pride in being honest and having a strong work ethic. We were taught to respect guns, authority, elders, and America. We never thought about taking a life, or being inhumane to animals. We all ate around the dinner table and talked to each other as a family when possible.
We asked each other how their day was and talked about what we learned in school. We said the Pledge of Allegiance and listened to our teachers, and respected them. We watched what we said around our elders because we knew If we DISRESPECTED any grown up we would get our behinds busted, it wasn't called abuse, IT WAS CALLED DISCIPLINE! We held doors, carried groceries and gave up our seat without being asked, to someone who needed it.
You didn't hear curse words on the radio in songs or TV. "Please" and "Thank you" were part of our daily vocabulary! And "Bless you" if someone sneezed, even strangers and NO ONE was offended by the term..
Re-post if you're thankful for your childhood and will never forget where you came from! Wouldn't it be nice if it were possible to get back to this way of life? It was so primitive, yet we all miss it??
Copy and paste... change to the Town where you lived. Lots of good time and memories...the good ol' days.
Learn to RESPECT not EXPECT!
(28) Luciano Pavarotti sings "Nessun dorma" from Turandot (The Three Tenors in Concert 1994) - YouTube
"Because we determined not to make a traditional prosecutorial judgment, we did not draw ultimate conclusions about the President's conduct. The evidence we obtained about the President's actions and intent presents difficult issues that would need to be resolved if we were making a traditional prosecutorial judgment. At the same time, if we had confidence after a thorough investigation of the facts that the President clearly did not commit obstruction of justice, we would so state. Based on the facts and the applicable legal standards, we are unable to reach that judgment. Accordingly, while this report does not conclude that the President committed a crime, it also does not exonerate him."
Weight loss may help cut heart attack, stroke risk in diabetics: Cambridge study | Business Standard News
Mueller complained that Barr’s letter did not capture ‘context’ of Trump probe - The Washington Post
This reality is not reflected in perception, though. According to the Gallup-Sharecare Well-Being Index, which has measured how Americans feel about their overall well-being since 2008, 2017 was the worst year on record. But unlike 2009, when financial worries put significant downward pressure on the average American's self-assessment, the factors driving down happiness are emotional and psychological today. Americans are lonelier. They are more political, and both of Americas two major parties feel like they are losing cultural and electoral ground relative to their adversaries. They are economically insecure, even though more Americans are employed and the number of Americans in the labor market is stable—defying the expectation that labor force participation rates would decline as the Baby Boomer generation retires. In the aggregate, Americans are not worse off than they were a decade ago, but many of them think they are.
Tijuana ranked as the most violent city in the world, top 5 located in Mexico, report says
That's not to say Democrats should abandon our priorities. We should work hard to combat climate change. We should fight to expand health-care coverage and reduce costs. We should find ways to make the tax code more progressive. But we shouldn't fall for Trump's sucker punch.
The US Air Force's jet-powered robotic wingman is like something out of a video game
The XQ-58A Valkyrie is designed to operate as a 'loyal wingman' Read the full story
A safety manager for the park says the exposure came from uranium rocks stored in buckets Read the full story
This video does a really good job of looking at the health benefits of negative ions from a scientific perspective.