इस तरह, इंसान आज एक बड़े पैमाने पर ऐसा भूभौतिकीय (جियोफिजिकल) प्रयोग कर रहा है जो पहले कभी नहीं हुआ था... कुछ ही सदियों के भीतर, हम सैकड़ों-करोड़ों वर्षों से तलछटी चट्टानों में जमा केंद्रित कार्बन को वापस वायुमंडल और महासागरों में लौटा रहे हैं।
Thus, human beings are now carrying out a large scale geophysical experiment of the kind that could not have happened in the past...Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years.
Thus, human beings are now carrying out a large scale geophysical experiment of the kind that could not have happened in the past...Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years.
हम चाँद के पिछले हिस्से के मुकाबले समुद्र की तली के बारे में कम जानते हैं।
We know less about the ocean's bottom than about the moon's back side.
We know less about the ocean's bottom than about the moon's back side.
हम विश्वविद्यालयों को आधुनिक दुनिया के गिरजाघरों की तरह मानते थे। मध्य युग में, गिरजाघर शहर का केंद्र और उसका प्रतीक हुआ करता था। आधुनिक दुनिया में, उसकी जगह विश्वविद्यालय ले सकते हैं।
We thought of universities as the cathedrals of the modern world. In the middle ages, the cathedral was the center and symbol of the city. In the modern world, its place could be taken by the university.
We thought of universities as the cathedrals of the modern world. In the middle ages, the cathedral was the center and symbol of the city. In the modern world, its place could be taken by the university.