Update topic.en.md

01.curriculum/01.physics-chemistry-biology/topic.en.md

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 title: 'From my perceptions of the external world,<br>To physics, chemistry, biology, and to industrial and environmental sciences<br><br>'
-media_order: <img, src="sciences_400_2400_web.jpg" width="500">
+media_order: <img, src="sciences_400_2400_web.jpg" width:100% >
 slug: physics-chemistry-biology
 #content:
 #    items: '@self.modular'