What does the element Um stand for?

Who was element 101 named after? If adenine is 5 and cytosine is 45 what is thymine? Is the US Weakening? Why does the prime meridian vary in places? Is the difference between a pure substance and a mixture always easy to observe? How can a substance be frozen at room temperature? How does Chemistry helps in space travel? What would be the consequences if the speed of light did not change if it went through material? Why the specific heat capacity of water becomes infinity when boiling water changes into steam? How much precipitation does a hurricane produce? Why does chlorosis occur in human? Why can't you drink 30 minutes before taking your temperature? What separates DNA strands when DNA copies itself? What is the purpose of NEPAD? What is regional synthesis? What is the total number of orbitals in 5g and 6h subshell? Devices such as computers and credit-card readers have no basis in science? What are 2 things that people have a better understanding of as a result of advances in astronomy? What are some examples of surgical instruments? What are magma flow across layers of volcanic cone?