Biological effects of natural explosions

Biological Effects of Natural Explosions,[object Object],1,[object Object]
Solar Explosion: What do you observe?,[object Object],2,[object Object]
Biological Effects of Natural Explosions on the Environment,[object Object],As you watch this power-point answer the questions on the worksheet in your science notebook labeled:,[object Object],Biological Effects of Natural Explosions on ,[object Object],the environment ,[object Object],Station 1,[object Object],3,[object Object]
The Biological Effects of Natural Explosions,[object Object],In this power-point the following types of explosions  will be discussed that cause effects on Biological Organism,[object Object],[object Object]
Solar Explosions
Deep Space Gamma Rays
K/T Explosion (meteorites)
Forest Fires 4,[object Object]
How did our Universe Begin?,[object Object],Throughout time we have asked ourselves these questions: ,[object Object],How did our universe begin? ,[object Object],How old is our universe? ,[object Object],How did matter come to exist?,[object Object], Obviously, these are not simple questions and throughout our brief history on this planet much time and effort has been spent looking for some clue. Yet, after all this energy has been expended, much of what we know is still only speculation,[object Object],5,[object Object]
Big Bang Explosion Theory and the Creation of the Universe,[object Object],About 15 billion years ago a tremendous explosion started the expansion of the universe. This explosion is known as the Big Bang. At the point of this event all of the matter and energy of space was contained at one point. What existed prior to this event is completely unknown and is a matter of pure speculation. ,[object Object],6,[object Object]
Explosion that Created the UniverseBig Bang Theory,[object Object],7,[object Object]
Largest Explosion created in HistoryFeb 18 2005,[object Object],Cosmic Explosion Among the Brightest in Recorded History,[object Object],02.18.05,[object Object], ,[object Object],Scientists have detected a flash of light from across the Galaxy so powerful that it bounced off the Moon and lit up the Earth's upper atmosphere. The flash was brighter than anything ever detected from beyond our Solar System and lasted over a tenth of a second. NASA and European satellites and many radio telescopes detected the flash and its aftermath on December 27, 2004. Two science teams report about this event at a special press event today at NASA headquarters. A multitude of papers are planned for publication,[object Object],Largest Cosmic Explosion in History,[object Object],8,[object Object]
HyperNova: Gamma Ray Bursts,[object Object],These are incredible explosions from deep space, though their exact nature is still in some dispute. They shine briefly with the intensity of a million trillion suns and are almost surely caused by the collapsing of massive stars.,[object Object],The theory holds as the Hypernova collapses a beam of energy shoots out along the axis of the star's rotation & if that beam is aimed at Earth a Gamma ray burst can be recorded.,[object Object],9,[object Object]
Nanoparticlesare extremely small particles that make up matter. Gamma Rays are nanoparticles that are emitted from Hyper and super novasthat are found in Gamma Rays?,[object Object],GammaRays,[object Object],Gamma rays are high-energy waves, similar to light, but have much higher energy, and can travel very long distances. However, matter such as concrete, lead or metal, or even water can stop them in their tracks, but human bodies can not.,[object Object],Gamma Rays can be stopped by water,[object Object],10,[object Object]
Hypernova,[object Object],11,[object Object]
Biological Effects of Hyper-Novas emitting Gamma Rays ,[object Object],Biological Effects of Gamma-Ray Bursts: ,[object Object],1. We find that the first three effects of gamma rays have the potential to cause global environmental changes and biosphericdamages. ,[object Object],Cornell University Library,[object Object],,[object Object],12,[object Object]
Biological Effects of Super novas,[object Object],Large explosions occur in the universe called Supernova, these result from stars exploding,[object Object],There are not known effects of Super novas on the biology of the Earth. In the future there may be effects that are found because Super novas do add elements to space and this may eventually effect in some way life on Earth.,[object Object],13,[object Object]
SuperNova’s,[object Object]
Explosions on the SunWhatis a Solar Flare?,[object Object],What is a Solar Flare?,[object Object],A flare is defined as a sudden, rapid, and intense variation in brightness. ,[object Object],A solar flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released.,[object Object],Radiation is emitted across virtually the entire electromagnetic spectrum, from radio waves at the long wavelength end, through optical emission to x-rays and gamma rays at the short wavelength end. ,[object Object],The amount of energy released from a solar flare is the equivalent of millions of 100-megaton hydrogen bombs exploding at the same time! ,[object Object],,[object Object]
Solar Explosions,[object Object]
Biological Effects of Solar Explosions,[object Object],There are health issues for ailine pilots and astronauts. ,[object Object],For those of us that spend most of our time on the ground, the magnetic field and the atmosphere block out almost all of the harmful radiation and charged particles. ,[object Object], 2002, Amelie Saintonge (more by Amelie Saintonge),[object Object]
Meteorite Collisions in space,[object Object]
Meteroites are large masses of matter that travel through space,[object Object]
What Killed the Dinosaurs?,[object Object]
What Is a Mass Extinction?,[object Object],An episode in evolutionary history where more than 50% of all known species living at that time went extinct in a short period of time (less than 2 million years or so).,[object Object]
K/T Extinction Boundary,[object Object],65 million years ago, earth experienced a global mass extinction event: dinosaurs disappeared,[object Object],This extinction created a fossil  boundary between the Cretaceous and Tertiary (abbreviated K and T) geological periods.,[object Object],The earth time period that created this earth layer is called the KT boundary,[object Object]
The cause of the K-T extinctions is one of the great mysteries in science, and scientists have proposed many kinds of theories to account for it. They range from asteroid or comet impacts, volcanism, sea level changes, supernova explosions, and on and on.,[object Object]
What really killed the dinosaurs?,[object Object]
Biological effects of natural explosions
Biological effects of natural explosions
Biological effects of natural explosions
Volcanic Explosions,[object Object],A Volcano develops when magma rises near the Earths surface & occupies an underground chamber. Magma in the chamber is forced upwards and flows out from a vent as lava. Explosive volcanic eruptions occur when the rising magma accumulates large amounts of dissolved gas. The reduction of pressure as the magma rises causes the gas to bubble out of the solution, this results in a rapid increase in volume. People imagine volcanoes blasting huge plumes of smoke and fire but in reality the smoke consists of vast volumes of fine dust, mingled with steam and sulphurous vapors. What appear to be flames is in fact the glare from the erupting materials glowing due to their high temperature. This glare reflects off the clouds of dust and steam resembling fire.,[object Object]
Biological Effects of Volcanic Explosions,[object Object],The sudden violence of volcanic eruptions causes catastrophe and devastation.  Various notorious eruptions of volcanoes in the past, such as Mount Pelée, Tambora, Krakatau and Pinatubo have demonstrated the devastating impact of volcanic activity on nearby landscapes and communities.  Many people got killed.  A big number of people had to abandon their homes and land forever.  Even the whole world's climate was changed for a while as a result of an eruption! ,[object Object],     These effects of volcanic eruptions are mostly the result of certain hazards.  Volcanoes provide different hazards during an eruption.  Each hazard poses different risks affecting different areas.  The most threatening hazards include: ,[object Object],Pyroclastic Flows,[object Object],NuéesArdentes,[object Object],Volcanic Ashes,[object Object],Lahars,[object Object],Debris Avalanches, Landslides, Tsunamis,[object Object],Blast,[object Object],Lava,[object Object],Types of Lava Flows,[object Object],Gas,[object Object],,[object Object]
Volcanoes are renowned as one of nature’s most beautiful creations. But, they are more notable for the devastating hazards they have caused to civilizations—wiping out towns and even affecting global climates.Read more:,[object Object]
Mt St Helens,[object Object],After a volcanic explosion, the environment around the explosion is wiped out by fire, lava flows, and ash. The regrowth of life on the barren terrain that is created by the explosion is called Succession,[object Object]
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