For the first time, scientists have discovered a classic formula for pi in the world of quantum physics. Pi is the ratio between a circle's circumference and its diameter, and is incredibly important in pure mathematics, but now scientists have.
From the description: The ultimate ‘sitting up reading’ shawl, this one also looks good folded in half and worn as a cape, with a pin to hold it together at the front. Its centre-out construction (using the Pi formula described by Elizabeth Zimmerman) features an arched pattern repeat in concentric circles.
Miracle-Gro Succulent Plant Food, 8 OZ Instantly feeds succulent plants, including cacti For all cacti, jade, aloe and other popular succulents Feeds instantly Able to apply directly to the soil or can mix with water Feed every 2 weeks