Administration: Individual. The DAB-4 is a revision of one of the most popular individual achievement tests available. Its 8 subtests identify studentsâ strengths and weaknesses across important areas of school achievement. A supplemental manual shows how to probe student responses to obtain information about studentsâ thinking processes and problem-solving strategies.
In 1992, the first evidence of a planetary system other than our own was discovered, orbiting the pulsar PSR B1257+12. Three years later, 51 Pegasi b, the first extrasolar planet around a Sunlike star, was discovered.
Uranus is the 7th planet in the Solar System, and the first planet discovered beyond the 5 planets that are visible with the unaided eye. So, who discovered Uranus?The discoverer was Sir William Herschel, who found it on March 13, 1781.Sir William Herschel. Even though Uranus is dim, itâs actually possible to see with the unaided eye in very dark, clear skies. But even so, nobody had ever officially recorded the movement of Uranus, so Herschel is the discoverer.ranus is the 7th planet in the Solar System, and the first planet discovered beyond the 5 planets that are visible with the unaided eye. So, who discovered Uranus?