Günlük Bilginiz - En önemli 20 araç

Forbes dergisine göre bugüne kadar icad edilmiş en önemli 20 araç

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The 20 Most Important Tools Ever

No. 1 The Knife No. 2 The Abacus No. 3 The Compass No. 4: The Pencil No. 5: The Harness No. 6: The Scythe No. 7: The Rifle No. 8: The Sword No. 9: Eyeglasses No. 10: The Saw No. 11: The Watch No. 12: The Lathe No. 13: The Needle No. 14: The Candle No. 15: The Scale No. 16: The Pot No. 17: The Telescope No. 18: The Level No. 19: The Fish Hook No. 20: The Chisel