Humans occupied South America earlier than previously thought, according to the recent discovery of ancient artifacts found at an archeological site in Argentina. Approximately 13,000 years ago, a prehistoric group of hunter-gathers known as the Clovis people lived in Northern America. The bones of some mammal species were concentrated in a specific part of the site, which could indicate designated areas for butchering activities. Microscopic examination also revealed that some bones contained fractures most likely caused by stone tools.The remains were dated between 14,064 and 13,068 years ago, and the authors hypothesize that Arroyo Seco 2 may have been occupied by humans during that time.
This was interesting.
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1. This theory states that the Glaciers are growing. Science says this is wrong. Glaciers are actually loosing ice at an extensive rate, and around 90% of glaciers around the world right now are shrinking... not growing. Glaciers are not only dictated by air temperature changes but also by precipitation. Myth busted, since 2009 a majority of the glaciers have been constantly shrinking.
2. Global warming is from the sun! NOT. As global temperatures have been increasing, the sun has been headed in the opposite direction. The only way people could conclude that the sun could be the cause of this is from only looking at certain data- not through long periods of time. Two new studies characterize tidal disruption flares by studying how surrounding dust absorbs and re-emits their light, like echoes. A black hole destroying a star, an event astronomers call 'stellar tidal disruption,' releases an enormous amount of energy, brightening the surroundings in an event called a flare. This approach allowed scientists to measure the energy of flares from stellar tidal disruption events more precisely than ever before. A new research shows that thunderstorms have 50 percent higher concentrations of mercury than other rain events. Mercury is a naturally occurring chemical element that is used in several devices such as thermometers, barometers, fluorescent lamps and other devices. Exposure to high levels of mercury can be dangerous. The states bordering the Gulf of Mexico have consistently seen the highest mercury deposition in the eastern U.S., typically double that of the northeast states. Scientists are trying to figure out how mercury enters ecosystems and the effects it has on humans and wildlife. I find this so interesting because something that is lethal is also coming down in rain. The things that can hurt us are in the things we need to survive. Its crazy to think that mercury is in thunderstorms and that it has 50% higher concentration. I wonder what scientists will find in the upcoming studies. https://www.sciencedaily.com/releases/2016/08/160831103023.htm |
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