From winter to summer in 6 seconds

<p style=";text-align:left;direction:ltr">Weather of Arabia - The American space agency &quot;NASA&quot; recently showed a 6-second video clip showing the transition of the old world continents (Europe, Asia and Africa) from winter to summer, in a way that illustrates the huge weather volatility on our planet.</p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> The wonderful scene summarizes the movement of clouds in the atmosphere and the changes of snow cover and vegetation during a period of 6 months in a short clip of only 6 seconds. </p><p class="rtecenter" style=";text-align:left;direction:ltr"></p><p class="rtecenter" style=";text-align:left;direction:ltr"><iframe frameborder="0" height="315" src="//www.youtube.com/embed/QOQHHFMLskk" width="560"></iframe></p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> It is noteworthy that the images used in making the clip date back to a period of time between 1-18-2014 and 7-25-2014, and <span style="line-height:1.6em">despite the significant changes that appear on land from a radical difference in the presence of snow and vegetation covers, the constant in the atmosphere is the movement of clouds permanent and continuous.</span></p>