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Original de JorgeTeixeira
Austríaco inventa aparelho para controlar som vindo do exterior
:fuckyeah
O conceito é interessante, mas na prática nunca iria resultar, ou pelos menos, pela complexidade de tal aparelho para saber identificar o mais diverso tipo de ondas e "cancelar-as" é capaz de ser lá para a casa dos milhares.
Certo. Eles no vídeo falaram que ainda está longe de estar presente numa casa comum.
Acho que fiquei sensibilizado com o fato de ter enorme armazém a ser remodelado ao lado do meu apartamento, bem como ter os meus vizinhos no andar de cima em obras. 
Spoiler
Substances can only be liquid in the presence of a gas to apply vapor pressure. If there is no pressure, or too little pressure, a substance will go straight from solid to gaseous phase as it warms. If you do this in an enclosed space the gas produced will build up, creating pressure as it does so, until a liquid phase is possible. If not enclosed, the gas will escape and the process can continue indefinitely.
The most familiar example is solid carbon dioxide, also known as dry ice. Liquid carbon dioxide needs much higher pressure than most other common substances. Under atmospheric pressure it will be a gas above -78.5C (-104.2F) and solid below that temperature. Take some solid carbon dioxide into a room and watch it go straight to gas (but careful, the extreme cold will “burn” you if you touch it).
The video above is what happens if a liquid is placed in conditions where the temperature is right at the point where it freezes and the gas pressure is removed. With no pressure it can't stay liquid, but it is right on the cusp between boiling and freezing, so it does a little of both. Going from liquid to gas absorbs energy, while liquid to solid changes release it. This can keep the process in balance - if too much material boils the temperature will fall, shifting the balance in favor of freezing.
Some coverage has wrongly described the video as showing the triple point. However, at the triple point gas, liquid and solid can all survive indefinitely. What we are seeing is what would happen anywhere along the dotted lines to the left of the on the graph below to the left of the triple point.
We don't see this sort of thing often because if we performed such an experiment in a closed environment the boiling gas would build up pressure, allowing the remaining material to stay liquid. In the vidoe that is addressed by constantly drawing off the vapor.
Read more at http://www.iflscience.com/chemistry/watch-water-boil-and-freeze-same-time#JVvOu66DB99TVHQ1.99
Ontem vi a repetição do Cosmos de segunda-feira (que não tinha visto) e eles falam dos Nutrinos nesse episódio.
Também o viste Jorge? :megusta
Ya..... também o vi. Foi aí que surgiu a inspiração. :megusta :megusta
Para ser sincero, já nem me lembrava dos nutrinos ahahah!
A série está bastante boa, e neste caso em particular, nunca tinha visto o ambiente de estudo dos nutrinos... fiquei 8o 8o 8o 8o 8o
19 Year Old Develops Machine To Clean The Oceans Of Plastic
How does it work? Their method exploits natural ocean currents and winds which passively transport garbage towards a collection platform. Solid floating barriers are then used to catch and concentrate the trash from the ocean, negating the risk of wildlife entanglement and vertebrate bycatch which are problems with other techniques such as nets.Their first proof-of-concept test, which was performed at the Azores Islands, confirmed the capture and concentration potential of the floating barriers. After capture the plastic is removed mechanically and, according to the report, if it can be converted into other materials or oil some of the costs could potentially be recovered.
Alguém das ilhas sabia disto? :megusta