Fifteen years after Laszlo Hanyecz paid 10,000 bitcoin for two Papa John’s pizzas worth $41, that transaction is now valued at $1.1 billion as the global crypto community celebrates Bitcoin Pizza Day on May 22. From $41 to $1.1B: Bitcoin Pizza Day Marks 15th Anniversary of Historic Crypto Transaction On May 22, 2010, Florida-based programmer […]
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Painting Roofs White Cut AC Use in a Philadelphia Pilot of 340 Homes
Key TakeawaysPhiladelphia’s ECA coated 340 homes, cutting indoor temperatures by 4 to 5°F.ECA’s pilot reduced air-conditioning demand by 560 kWh...













