August 29, 2015 Physical Science
Lutetium Symbol: Lu Atomic Number: 71 Atomic Mass: 174.967 amu (atomic mass units) Melting Point: 1663 C (1936 K, 3025 F) Boiling Point: 3402 C (3675 K, 6156 F) Number of Protons: 71 Number of Electrons: 71 Number of Neutrons:…
Read more
August 29, 2015 Physical Science
Over the last few years the vast amount of data that is being gathered by satellites which are designed to study the sun has forced the scientific community to rethink the standard model on which the sun’s nature and composition…
Read more
August 29, 2015 Physical Science
Rubidium Symbol: Rb Atomic Number: 37 Atomic Mass: 85.4678 amu (atomic mass units) Melting Point: 39.31 C (312.46 K, 102.76 F) Boiling Point: 688.0 C (961.15 K, 1270.4 F) Number of Protons: 37 Number of Electrons: 37 Number of Neutrons:…
Read more
August 29, 2015 Physical Science
Aristotle believed there were only four elements that made up all matter on earth. These elements were earth, air, wind and fire. For thousands of years this was accepted as fact. In the seventeenth century scientists such as Robert Boyle…
Read more
August 29, 2015 Physical Science
Phosphorus Symbol: P Atomic Number: 15 Atomic Mass: 30.97376 amu (atomic mass units) Melting Point: 44.1 C (317.25 K, 111.38 F) Boiling Point: 280.0 C (553.15 K, 536.0 F) Number of Protons: 15 Number of Electrons: 15 Number of Neutrons:…
Read more
August 29, 2015 Physical Science
Zinc Symbol: Zn Atomic Number: 30 Atomic Mass: 65.39 amu (atomic mass units) Melting Point: 419.58 C (692.73 K, 787.24396 F) Boiling Point: 907.0 C (1180.15 K, 1664.6 F) Number of Protons: 30 Number of Electrons: 30 Number of Neutrons:…
Read more
August 28, 2015 Physical Science
Stargazing in the urban environment is not always the easiest thing to do. Light pollution can wipe out all but the brightest objects in the heavens, while manoeuvring your telescope to the ideal viewing area outside the city, can prove…
Read more
August 28, 2015 Physical Science
Stargazing is so diverse depending on the chosen location. Out in the open plains one will be privy to seeing the night sky lit up like the proverbial Christmas tree. On the other hand, urban dwellers will have the tendency…
Read more
August 28, 2015 Physical Science
Thinking of purchasing an eyepiece for that significant stargazer in your life? Well you couldn’t have picked a better time to buy as the eyepiece market is bursting with quality made lenses at a fraction of what they used to cost….
Read more
August 28, 2015 Physical Science
Military activities in space appear to be increasing with the second mission of the X-37B spacecraft. Operated by the United States Air Force, the vehicle resembles the space shuttle orbiters which are currently being retired by NASA. Unlike the space…
Read more