DAB Substrate Kit (ab64238) Overview. Product overview This product is available in a two component form consisting of a liquid, refrigerator stable DAB Chromogen and DAB Substrate. Once the two components are combined, the reagent can be used for up to six hours, making it ideal for automated stainers.
The colour photograph of Earthrise-taken by Apollo 8 astronaut, William A. Anders, December 24, 1968. Although the photograph is usually mounted with the moon below the earth, this is how Anders saw it. This photograph was taken during the Apollo 8 mission in December 1968, seven months before the first lunar landing.Apollo 8 was the mission which put humans into lunar orbit for the very first time.lthough the photograph is usually mounted with the moon below the earth, this is how Anders saw it. This photograph was taken during the Apollo 8 mission in December 1968, seven months before the first lunar landing. Apollo 8 was the mission which put humans into lunar orbit for the very first time.
In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere.his day of nature's equipoise was later sanctioned in a Proclamation written by McConnell and signed by Secretary General U Thant at the United Nations. A month later a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970.