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complex brains suggests they evolved relatively recently and specifically for functions tied to self-awareness and emotional processing

the symbol reads as a milestone marker rather than a working badge: more often picked up at graduation

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A mature human red blood cell is a biconcave disc roughly 7 to 8 micrometres across and 2 micrometres thick

telescope necklace | gold vermeil gold a winged staffTelescope necklace 18k gold vermeil In 1610 Galileo pointed an early refracting telescope at Jupiter and found four moons orbiting it. The discovery ended the geocentric universe in one season of observation. Every telescope built since has been a continuation of that single decision to look more carefully. The Science of the Telescope From Galileo's small refractor to the 6. 5 metre primary mirror of the James Webb Space Telescope, the instrument has