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harder

غير مصنف

eshrag
0 32

Is anything harder than a diamond?

Diamonds are prized for their hardness. In jewelry, they can last generations and resist scratches during day-to-day wear. As blades…
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غير مصنف

eshrag
0 54

Solar maximum could hit us harder and sooner than we thought. How dangerous will the sun’s chaotic peak be?

This image shows how the sun’s appearance changes between solar maximum (on the left) and solar minimum (on the right).…
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