Compléter Exercice en anglais Version en ligne Reportage: " Le retour des dirigeables" par Streamglish Education 1 sonde jauger anecdote nanofils croissance assiste précisément semble couronne but prises améliorer alimenter réseau chaleur 1 - This Parker Solar - Probe - would get closer to the Sun than any other so far . 2 - Well , just , how close would it get , and how it would do to survive the - heat - 3 - Now , the figure " 6 million " - sounds - enormous , So , that's an approximation , but you can - gage - that 6 million km is not a lot . 4 - And the primary - objective - of this mission is to study how heat moves from the surface to the - corona - which is the solar atmosphere . 5 - So , if we don't understand how solar wind propagates ; Well , speaking of the Sun , here of Earth , solar power is - witnessing - tremendous - growth - 6 - But what kind of technologies are helping - fuel - this growth ? Well , there's nano technology for one Scientist recently discovered an - array - of - nanowires - instead of the conventional planar solar cells can - improve - the conversion efficiency by as much as 18% . 7 - And just an interesting - factoid - a nanowire is around 300 times thiner than a human hair . 8 - We'll first start with this solar - poweredbackpack they are placed closer together and they are placed more - accurately - and you want to instantly charge it there are no - sockets - around .
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