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Thursday, 18 April 2013

We're running out of helium

Helium is the second-lightest element. And it is one of the rarest elements on planet earth. It's the most widely-used of the inert gases. Used in arc welding, diving, growing silicon crystals, and as a coolant in MRI scanners.

In addition to being rare, helium is a non-renewable resource. The helium that we have was produced by the radioactive decay of rock, long ago. Once the gases is leaked into the atmosphere, it's light enough to escape the Earth's gravitational field so it bleeds off into space, never to return. We may run out of helium within 25-30 years because it's being consumed so freely.
Without helium the magnets in the large Hadron collider will not be able to work.

Wednesday, 17 April 2013

Flash eating bacteria (Necrotizing fasciitis)

Necrotizing fasciitis is an extremely rare infection of the lower layers of the skin. Over 70% of cases are recorded in patients with one of the following clinical situations: immunosuppression, diabetes, alcoholism/drug abuse/smoking, malignancies, and chronic systemic diseases. It occasionally occurs in people with an apparently normal general condition. The bacteria don't necessarily eat the bacteria they release toxins This toxin is capable of activating T-cells non-specifically, which causes the overproduction of cytokines and severe systemic illness (Toxic shock syndrome). In the early stages, signs of inflammation may not be apparent if the bacteria are deep within the tissue. If they are not deep, signs of inflammation, such as redness and swollen or hot skin, develop very quickly. Skin color may progress to violet, and blisters may form, with subsequent death of tissues 

Note: There will be no picture because the infection is way too graphic.

Monday, 15 April 2013

Shutdown of thermohaline circulation

shutdown or slowdown of the thermohaline circulation is a postulated effect of global warming. There is some speculation  that global warming could, via a shutdown or slowdown of the thermohaline circulation, trigger localized cooling in the North Atlantic and lead to cooling, or lesser warming, in that region. This would particularly affect areas such as the British Isles and the Nordic countries, which are warmed by the North Atlantic drift. The chances of this occurring are unclear but there is some evidence for the stability of the Gulf Stream but a possible weakening of the North Atlantic drift and there is evidence of warming in northern Europe and nearby seas, rather than the reverse. In coupled Atmosphere-Ocean General Circulation Models the THC tends to weaken somewhat rather than stop, and the warming effects outweigh the cooling, even over Europe. 
This would also Wipe out a lot of the deep living sea animals because the thermohaline circulation is also what brings oxygen down to the depths of the ocean, also they entirety of the sea will be a huge stagnant pool.

Sunday, 14 April 2013

A 40 year old self sustaining Eco-system!

In 1960 a man called David Latimer planted a spider wort seed int a pile of compost and gave it a pint of water, 12 years later he gave it another pint of water and tightly sealed the carboy shut as an experiment. 

Having access to light through the glass, it continues to photosynthesize. The water builds up on the inside of the bottle as condensation and then drips back down on the plants in a miniature version of the water cycle. As leaves die, they fall off and rot at the bottom producing the carbon dioxide and nutrients required for more plants to grow.
It has occupied the same spot under his stairs in Cranleigh, Surrey for 27 years. He rotates it every now and then so it receives light evenly from a nearby window.

Saturday, 13 April 2013

Climate change



  • Humans release massive amounts of carbon dioxide into the atmosphere by burning coal, gas and oil. We also like to destroy natural carbon sinks such as the amazon rain forest and replace them with other things that produce carbon dioxide such as cattle. Planet earth has seen these massive increases of carbon dioxide before and they have all caused mass disaster, also what scientists cant get their head around is what apocalypse will strike first.
  • Growing conditions could drastically change because of climate change and this is a really bad thing, most of the wealth of people are distributed where the better growing conditions are and as the world continues to warm these excellent growing places could become lifeless hellscapes. And by the time we reach something as subtle as a three degree increase in global temperatures could completely stop most of the food growing, and what always comes with high amounts of hunger and drought well you get famine and its counterpart war. As you may know the earth's human population is seven billion and every one of those wants to eat food and when they get really hungry they start hurling little hunks of metal through one another's bodys.

  • So next time you are going anywhere maybe it would be a good idea to walk, cycle or even take public transport.

Tuesday, 9 April 2013

Prince Rupert's drop

The prince Rupert's drop is a truly amazing thing.When molten glass hits cold water, its outer surface cools rapidly and shrinks as it solidifies. Since the center is still fluid, it can flow to adjust to the outer shell’s smaller size. As that center eventually cools and solidifies, it also shrinks, but now the outer shell is already solid and can’t change its shape to accommodate the smaller core. The result of this is a high amount of internal pressure, as the inside pulls the outside from all directions the glass is set to release a lot of energy. If you break the thin glass at the tail, a chain reaction travels like a shock wave through the drop. As each section breaks, it releases enough energy to break the next section, and so on, shattering the whole drop in less than a millisecond. At the same time The glass can be extremely strong aswell glass breaks when tiny scratches pull apart and spread into fractures. Since the surface is compressed by internal stress, scratches can’t grow, and the glass is very difficult to break.

Monday, 8 April 2013

Amazing animals: Platypus

The Platypus is one of the most extraordinary mammals because it goes against one of the properties of mammals, it lays eggs. Native to the eastern coast of Australia the Platypus feeds on insect larvae, worms or other freshwater insects.
Amazing facts about Platypuses:

  • Platypuses can consume their own body weight in food in a 24 hour period
  • The male platypus has venom strong enough to can kill a small dog, or cause excruciating pain among humans.
  • They are the only mammal to lay eggs.