Tag Archives: earth

How Firestorms Form



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Under the right conditions, wildfires can form clouds and generate firestorms, which last far longer than normal thunderstorms.

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To learn more about this topic, start your googling with these keywords:
Pyrocumulonimbus cloud – a type of cumulonimbus cloud that forms that forms above wildfires and even volcanic eruptions, which can create thunderstorms
Virga – rain that evaporates before it hits the ground
Updraft – upward moving air in a thunderstorm
Downdraft – downward moving air in a thunderstorm

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REFERENCES
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Andreae, Meinrat O., et al. “Smoking rain clouds over the Amazon.” science 303.5662 (2004): 1337-1342.
Dowdy, Andrew J., Michael D. Fromm, and Nicholas McCarthy. “Pyrocumulonimbus lightning and fire ignition on Black Saturday in southeast Australia.” Journal of Geophysical Research: Atmospheres 122.14 (2017): 7342-7354.
Dowdy, Andrew J., et al. “Future changes in extreme weather and pyroconvection risk factors for Australian wildfires.” Scientific reports 9.1 (2019): 1-11.
McKeever, A. (2020, September 24). Fire clouds and fire tornadoes: How wildfires spawn extreme weather. Retrieved January 30, 2021, from
Ndalila, Mercy N., et al. “Evolution of a pyrocumulonimbus event associated with an extreme wildfire in Tasmania, Australia.” Natural Hazards and Earth System Sciences 20.5 (2020): 1497-1511.
Peterson, David A., et al. “Wildfire-driven thunderstorms cause a volcano-like stratospheric injection of smoke.” NPJ climate and atmospheric science 1.1 (2018): 1-8.

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What If a Blazar Entered Our Solar System?



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We’ve thrown a lot of disasters at Earth over the years: from asteroids and aliens, to the Sun’s death. But hey, the Universe is a dangerous place, and we’re not done yet. Now we’re going to throw a black hole into the mix, and not just any black hole, but a blazar. Black holes are usually found at the center of the galaxy. The Milky Way has a black hole that is four million times the mass of the Sun. But that’s small compared to other black holes out there. How old is the oldest blazar? Why can we see some blazars, but not others? What is the Doppler effect and how would it let us know that a blazar is on its way? What are active galactic nuclei? Do radiation and gamma rays from blazars affect the Earth? How far is Markarian 421 from us?

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#whatif #blazar #dopplereffect #activegalacticnuclei #radiation

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What If You Lit a Match on Jupiter?



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Jupiter is the largest planet in the Solar System. It’s 300 times more massive than Earth. But it’s less dense than our home. Uh-oh. Looks like somebody left the gas running on Jupiter. Don’t do anything stupid, like lighting a humongous match. What would a match need to be made of to ignite the gas giant? How big would it have to be? And how much damage would this explosion do to our Solar System? Would phosphorous be enough to cause an explosion on Jupiter?

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#whatif #jupiter #cosmos #flammable #phosphorous

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What Is The Curiosity Rover Doing On Mars? | Cosmic Vistas | Spark



For decades, orbiters and tiny vehicles have roamed Mars, searching for signs of life. Get the latest scoop from Curiosity, a car-sized Mars rover with an impressive arsenal of scientific tools.

Season Five of Cosmic Vistas journeys into our solar system to experience unparalleled views of the sun, planets, and distant worlds. Cutting-edge scientific thinking and incredible imagery provide a brand new perspective on the cosmos.

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#Mars #Curiosity #AlienLife

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What If a New Continent Formed Tomorrow?



A brand new continent has emerged in the middle of the Pacific Ocean. A process that would typically take millions of years happened overnight. How would this disrupt the Earth’s fragile geography? How would global superpowers deal with a new strategic territory up for grabs? And would this new landmass be good for humanity? Or would it have terrible consequences?

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#WhatIf #NewContinent #Zealandia #Supercontinent #Landmass

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What Is Our Place In The Milky Way?



What is our place in the Milky Way? And our place in the Universe? In ancient times, many people had the idea our planet Earth to be at the centre of the Universe, as stated by Aristotle and Ptolomeus in their ptolemaic – aristotelic concept of universe: according to this model, Earth is at the center of the universe and all the other celestial bodies orbit around it. Today lots of people think the same. But is this really the case? To answer this question, let’s try to to a travel in the universe, through space and time; we will start our travel from our planet to reach, in the end, the extreme boundaries of the universe.
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During the 1600s, Galileo Galilei, the famous Italian astronomer, was one of the first people, during modern age, to have some doubts about the geocentric model of universe: thanks to telescopic observations, he was able to demonstrate our Earth is not at the rotation centre of planets and the Sun, but really it is the Sun itself. Moreover, observing planet Jupiter, he discovered that the giant planet is the rotation center for its moons. So, Galileo became aware that the center of the Solar System was the Sun, not the Earth!

The Solar System is made by a star, the Sun, eight planets and different types of minor celestial bodies, like comets, asteroids and dwarf planets.
Well, the Earth isn’t at the center of the Solar System, maybe is the closest planet to our Sun? No it isn’t, because it is only the third planet from the Sun: the closest planet to our star is Mercury, followed by Venus and then Earth. The Earth moves around the Sun, our star, just like all the other celestial bodies in the Solar System do: this implies that the Sun, and not our planet, is the center of rotation of the Solar System! The Earth takes a year, 365 days, to travel its orbit, and its average distance from the Sun is 150 million kilometers, which is the measure unit of distances in the Solar System known as the astronomical unit and abbreviated AU. Why do we talk about average distance? Because the orbit traveled by the Earth around the Sun is not circular but elliptical, and this means that there will be an aphelion (i.e. the point of the Earth’s orbit farthest from the Sun, just over 1 AU away from it) and a perihelion (the point of Earth’s orbit closest to the Sun, just under 1 AU). An alternative way to define the astronomical unit passes through the light time, in particular we can say that the average distance Earth – Sun is equal to about 8 light minutes: this means that sunlight takes 8 minutes to arrive on Earth, so that the sunlight we see at a certain moment is not that of that moment but it is the sunlight which left from the Sun 8 minutes earlier! In other words: if the sun went out for example at 2.30 pm, we would only notice it at 2.38 pm! Or again: if you could travel aboard the Star Wars Millennium Falcon it would take you only 8 minutes to travel from the Sun to the Earth (when in reality it takes a few years). To give a more concrete idea of the dimensions of the Solar System: if the Sun were a sphere with a diameter of 14 cm, Pluto would be at 700 m from the Sun, like seven regular soccer fields!

The nearest celestial body to Earth is the Moon, our satellite: to reach it you should take three days off! It’s the same time taken by Apollo astronauts to cover the distance of nearly 400 thousand kilometers that separate Moon and Earth. But if you had Star Trek Enterprise, and travel at maximum curvature, you would only take less than 2 seconds to reach the Moon!

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Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/ESA
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#InsaneCuriosity #MilkyWay #Galaxies

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The New Space Race! The Battle Of The Billionaires



We see NASA is firing up its rockets to go back to the moon again and multiple startups and industries have sprung up in this new race with some huge billionaire giants like Elon Musk, Jeff Bezos and Richard Branson where all are racing to conquer the new space industry. In this video we will talk about all those big billionaires and what are their plans for the future of our space. 
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This time it’s not only the US and the Russia. Several countries and private companies have announced plans for space exploration. This year alone India and China have announced their bids to be space powers with plans of launching missions to to mars and the moon. US has plans for many deep space missions along with Europe and United Arab Emirates, which has recently sent its probe on the red planet. So why has there been such interest in the space recently!! Well it because the space industry is a new gold rush. The economics is making sense and many new industries have formed around space.  Already there are space 3d printing companies that have printed on the International space station (ISS). The manufacturing of more efficient fibre optic cables has also become possible in space. Space manufacturing could create many startling new technologies that would lead to industries that don’t even exist today.  Extraterrestrial colonisation is a fascination for these billionaires, and space tourism is an exciting field for which many have even paid in advance. NASA had announce its lunar program Artemis “to land the first woman and the next man on the moon” and many private companies like SpaceX and Blue Origin are competing to provide their services of commercial payloads for the mission. NASA also plans to land Astronauts on the never visited part of the moon, The South Pole, and give astronauts 6.5 days on the lunar surface. For this NASA turns to private companies and the richest man in the world, Jeff Bezos, jumped at this opportunity. SpaceX founder Elon Musk successfully launched the SpaceX Falcon 9 rocket with the Crew Dragon spacecraft at the Kennedy Space Centre on May 30, 2020 in Cape Canaveral, Florida. Space tourism seems is also an area which SpaceX and Blue Origin want to accomplish. But there is another player who wants his part in this, Richard Branson and his V*rgin Atlantic. Recently he announced that he has 800 astronauts who have already signed up wanting to go to space. 

So let’s discuss the first Billionaire and also the world’s richest man, Jeff Bezos and his company Blue Origin. Jeff Bezos has shown his fascination about Space and possibilities of human life in space. The coming couple of years seem to be a busy year for Blue Origin, and American Aerospace manufacturer led by Amazon’s Jeff Bezos founded in the year 2000 the company has a goal of improving space tourism and make it accessible to everyone and even build space colonies for human beings in orbit complete with hotels, amusement parks, restaurants and other infrastructures. His ventures are comparative to that of Richard Branson and Elon Musk who also have put space Exploration as their foremost business interest.  Blue Origin is planning for a construction of a warehouse in Florida for building and launching rockets with dreams to reach and find many ways to explore the moon. The company has been invested in developing a vertical takeoff and landing spacecraft called New Shepard, named after the astronaut Alan Shepherd who was the first American to go to space. It is a reusable rocket and will not only make safe takeoff and landing but also will save loads of cost of building and launching new rockets and aims to take passengers into space and have a quick view of the earth and feel the weightlessness and excitement of space. It plans to do so by sending a capsule into the orbit which would hold a maximum of six people which might increase.
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Credits: Ron Miller
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/Esa
Credits: Flickr

#InsaneCuriosity #TheNewSpaceRace #SpaceTourism

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What If Earth Was Spinning at the Speed of Light?



The Earth makes one full rotation on its axis every 23 hours, 56 minutes and 4.1 seconds. And it’s not moving at the same speed everywhere. The rotational speed varies depending on your distance to the poles. This rotation makes Earth suitable for life. The diurnal cycle, or the shifting between day and night, helps keep the planet at a habitable temperature. Earth’s rotation is the driving force of weather patterns. Even tides are affected by the Earth’s spin.

So if we were to accelerate this rotation, would we completely destabilize the climate? What would happen to the length of our day? What geographical and climate changes would occur? And at what point would life on Earth cease to exist?

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#WhatIf #Earth #SpeedOfLight #Rotation #WeatherPatterns

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What If We Poured Concrete Into a Volcano?



If only there were a simple trick to stop a massive volcano from spewing out lava. Like maybe plugging it up with good old concrete. A massive volcanic explosion sends rock, lava and ash everywhere. Fire and destruction are all around you. If only there were a simple trick to stop an eruption. Like maybe plugging up those magma mountains with good old concrete. How could this wild idea be accomplished? Would concrete be able to withstand the pressure and heat? And would it do the trick or make things even more dangerous?

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

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#WhatIf #SpewingLava #Volcano #Concrete #Volcanology

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