Adafruit will not be shipping USPS orders Monday February 18, 2019 for the federal holiday, Presidents Day.
Expedited USPS orders placed after 11am ET Friday February 15 will go out Tuesday February 19.
Finlay was appointed by the Cuban government in 1879 to work with a North American commission studying the causes of yellow fever, and two years later was sent as the Cuban delegate to the fifth International Sanitary Conference in Washington DC.
At the conference, he urged the study of yellow fever vectors and later stated that the carrier was the mosquito Culex fasciatus, now known as Aedes aegypti.
When a US army’s Yellow Fever Board arrived in Cuba in 1900, he sought to persuade it of his mosquito-vector theory.
Finlay’s hypothesis and exhaustive proofs were confirmed by the board’s head, the US army doctor Walter Reed, paving the way for the eradication of yellow fever and saving generations of lives throughout South America, the Caribbean, Africa and the southern US.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.