these are some fonts i found on font squirrel. i think the 1942 report typewriter font for headings and descriptions of photos, the Aaargh font for the content text (like the paragraphs) and the Stardos Stencil as my title text.
Tuesday, 19 March 2013
Monday, 18 March 2013
Volcano games for website and Ibook
these are 2 different games i have found for volcanoes. with these games you can build your own volcano and watch it erupt, and also find out information about different types of volcano, looking inside a volcano and key words pop up to teach you about the eruption. the "volcano explorer" game pictured bottom is the more educational and more exciting game, the volcano you build is more realistic than the top game. and there is information all over.
Logo Design
Friday, 15 March 2013
volcano interaction
http://www.iknowthat.com/ScienceIllustrations/volcano/science_desk.swf
this was anouther website found, its very basic in ints form and also has little information but focuses more on the interaction of the website. the globe spins with different volcanoes marked on it and stops spinning when you hold the mouse over it. the alphabet letters bob up and down when you hover the mouse over them and when you have selected a letter the volcanic terms come up. there is a volcano eruption animation on the first screen which you click through in stages. this website hasn't been done to a high standard and has been done more for fun.
this was a website created for primary school children. i know the target audience is to young but there are some nice design features to this website. the illustration switch moves when you click the opposite story of vesuvius button, and when you hover the mouse over the illustration of the volcano you get an information box telling you what part of the volcano it is and what it does. there is an animated volcano on the home page and you can go through the "story" of an erruption.
interactive website finder
when i was looking online for interactive websites for volcanoes i came across a website which lists extensive interactive websites. the homepage is shown as the top screenshot. you choose the topic you want to find websites on and it gives you screenshots of the websites and you can click on the image to be taken to the website. this was really helpful for my research and a really good idea to help others.
Tuesday, 12 March 2013
volcano websites
i started looking online at websites that had already been created for/about volcanoes. most the websites i have found are american websites educating people on what to do if a volcano was to errupt or the warning signals were being sent out that something is about to happen. i found a few websites that were slightly interesting but i think there is a gap in the websites for an interesting website to be made.
this volcano website was one of the most interesting websites amongst all of them. it has galleries,
F&Q's, games and other resources you can use. The images are of a high quality, and the font they have chosen is easily readable. the options are clear and you don't feel lost on the website.
http://www.volcanoes.com
this website is anouther american site and this one is similar to the previous one, the user doesn't feel lost on the website and the colour they have chosen reflect the volcano theme. the image on the top header works really well as the orange of the magma brightens the top header so the orange for the navigation bar isn't to in your face. the website is clearly layed out with simple navigation.
http://www.ready.gov/volcanoes
this is a govenment website from america teaching people all about volcanoes, how to help their community, emergency packs, how to react. it is ver informative but also clearly worded and layed out so the user still understands what they are reading.
http://volcanoes.usgs.gov
this is one of the worst websites. the homepage starts of well, but once you have clicked on gallery the website's layout changed completely, it goes to the size on the website for a smart phone. this makes the website look tacky and not presented properly. the content that is in the website is good knowledgable information its just the website itself that is letting it down.
http://environment.nationalgeographic.co.uk/environment/natural-disasters/forces-of-nature/
Tuesday, 5 March 2013
eruptions in images
this is an image of a volcanic eruption, the only difference is the volcano was under the sea so has been formed over thousands of years on the sea bed.
this image is pyroclastic flow from a volcano that has errupted. the image has been taken from space, so you can tell how far up the pyroclastic cloud reaches into our atmosphere.
this is a volcano found in alaska. where the volcano has started to erupt you can see where the snow has "cracked" in a way to let the gases out. this was taken before the main eruption.
volcano - types of explosions
When researching volcano's and their explosions i found out there are different types of explosions.
Hawaiian Eruption
In a Hawaiian eruption, fluid basaltic lava is thrown into the
air in jets from a vent or line of vents (a fissure) at the summit or on the
flank of a volcano. The spatter created by bits of hot lava falling out
of the fountain can melt together and form lava flows, or build hills called
spatter cones. Lava flows may also come from vents at the same time as
fountaining occurs, or during periods where fountaining has paused. Because
these flows are very fluid, they can travel miles from their source before they
cool and harden.
Strombolian Eruption
Strombolian eruptions are distinct bursts of fluid lava (usually
basalt or basaltic andesite) from the mouth of a magma-filled summit conduit.
The explosions usually occur every few minutes at regular or irregular
intervals. The explosions of lava, which can reach heights of hundreds of
meters, are caused by the bursting of large bubbles of gas, which travel upward
in the magma-filled conduit until they reach the open air. Products of an explosive eruption are often collectively called tephra.
Vulcanian Eruption
A Vulcanian eruption is a short, violent, relatively small
explosion of viscous magma (usually andesite, dacite, or rhyolite). This type
of eruption results from the fragmentation and explosion of a plug of lava in a
volcanic conduit, or from the rupture of a lava dome (viscous lava that piles
up over a vent). Vulcanian eruptions create powerful explosions in which
material can travel faster than 350 meters per second (800 mph) and rise
several kilometers into the air. They produce tephra, ash clouds, and
pyroclastic density currents (clouds of hot ash, gas and rock that flow almost
like fluids).
Vulcanian eruptions may be repetitive and go on for days,
months, or years, or they may precede even larger explosive eruptions.
Plinian Eruption
The largest and most violent of all the types of volcanic
eruptions are Plinian eruptions. They are caused by the fragmentation of gassy
magma, and are usually associated with very viscous magmas (dacite and
rhyolite). They release enormous amounts of energy and create eruption columns
of gas and ash that can rise up to 50 km (35 miles) high at speeds of hundreds
of meters per second. They can produce falls of ash, scoria and lava bombs miles from the
volcano, and pyroclastic density currents that raze forests, strip soil from
bedrock and obliterate anything in their paths.
Lava Domes
Lava domes form when very viscous, rubbly lava (usually
andesite, dacite or rhyolite) is squeezed out of a vent without exploding. The
lava piles up into a dome, which may grow by inflating from the inside or by
squeezing out lobes of lava (something like toothpaste coming out of a tube).
These lava lobes can be short and blobby, long and thin, or even form spikes
that rise tens of meters into the air before they fall over. Lava domes may be
rounded, pancake-shaped, or irregular piles of rock, depending on the type of
lava they form from.
Lava domes are not just passive piles of rock; they can
sometimes collapse and form pyroclastic density currents, extrude lava flows,
or experience small and large explosive eruptions (which may even destroy the
domes!)
Surtseyan Eruption
Surtseyan eruptions are a kind of hydromagmatic eruption, where
magma or lava interacts explosively with water. In most cases, Surtseyan
eruptions occur when an undersea volcano has finally grown large enough to
break the water's surface; because water expands when it turns to steam, water
that comes into contact with hot lava explodes and creates plumes of ash, steam
and scoria. Lavas created by a Surtseyan eruption tend to be basalt, since most
oceanic volcanoes are basaltic.
now i'm aware of the different explosions i might choose this as my aspect of volcano's.
Friday, 1 March 2013
recent research/main points
since doing research into volcano's ive been researching the main volcanic points to focus on;
- erruptions
- how they are made
- natural disasters they have caused
these main points are the most interesting and also have the most information.
i want to create a website/ibook thats navigation acts as if you are going through the layers on the volcano. our age range we're focusing on is 16-18 year olds so an interesting navigation is key to also keep them focused on the product.
so far some of the main information i have found includes:
What is a pyroclastic flow?
A pyroclastic flow is a fluidized mixture of solid to semi-solid fragments and hot, expanding gases that flows down the sides of a volcano. These awesome features are heavier-than-air emulsions that move much like a snow avalanche, except that they are fiercely hot, contain toxic gases, and move at phenomenal, hurricane-force speeds. They are the most deadly of all volcanic phenomena.
A pyroclastic flow is a fluidized mixture of solid to semi-solid fragments and hot, expanding gases that flows down the sides of a volcano. These awesome features are heavier-than-air emulsions that move much like a snow avalanche, except that they are fiercely hot, contain toxic gases, and move at phenomenal, hurricane-force speeds. They are the most deadly of all volcanic phenomena.
What is lahar?
A lahar is a type of mudflow or debris flow composed of pyroclastic material, rocky debris, and water. The material flows down from a volcano, typically along a river valley. It is very dangerous because it's consistency and the way it acts is very much like cement. It is liquid when it's moving, but when it stops, it solidifies. This can cause just as much devastation as lava itself.
A lahar is a type of mudflow or debris flow composed of pyroclastic material, rocky debris, and water. The material flows down from a volcano, typically along a river valley. It is very dangerous because it's consistency and the way it acts is very much like cement. It is liquid when it's moving, but when it stops, it solidifies. This can cause just as much devastation as lava itself.
What is the Ring of Fire?
The Pacific Ring of Fire is an area of frequent earthquakes and volcanic eruptions encircling the basin of the Pacific Ocean. The Ring of Fire has 452 volcanoes and is home to over 50% of the world's active and dormant volcanoes. Ninety percent of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire.
The Pacific Ring of Fire is an area of frequent earthquakes and volcanic eruptions encircling the basin of the Pacific Ocean. The Ring of Fire has 452 volcanoes and is home to over 50% of the world's active and dormant volcanoes. Ninety percent of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire.
A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot magma, volcanic ash and gases to escape from the magma chamber below the surface.
Volcanoes are generally found where tectonic plates are diverging or converging. A mid-oceanic ridge, for example the Mid-Atlantic Ridge, has examples of volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by convergent tectonic plates coming together. Volcanoes can also form where there is stretching and thinning of the Earth's crust in the interiors of plates.
Erupting volcanoes can pose many hazards. Volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature. Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere or troposphere; however, they also absorb heat radiated up from the Earth, thereby warming the stratosphere.
natural disasters
the story of hundreds of mysterious deaths that occurred on 21 August 1986 in villages near Lake Nyos, Cameroon. Lake Nyos sits in the crater of an inactive volcano. It was later found that a landslide disturbed volcanic gas - carbon dioxide - that had dissolved in water at the bottom of the lake and sent it down the slopes of the volcano. Approximately 1,700 people in nearby villages were asphyxiated in and around their homes. The event at Lake Nyos is a rare type of natural disaster called a limnic eruption or lake overturn.
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