Author
Madhav Khandelwal
Recent research
- Physics & SpaceOpen access
Moscovium (Element 115): Synthesis, Nuclear and Chemical Evidence, and Prospective Applications
Moscovium (Mc, element 115) is a synthetic superheavy element first made at JINR Dubna in 2003 and recognized by IUPAC in 2015. This preprint reviews how it is made, what is known about its five established isotopes (Mc-286 to Mc-290, all with half-lives below about one second) a...
- AI & ComputingOpen access
Probability Is Exact Only in Theory: How Real-World Variables Break the Model
Probability theory is exact as mathematics, but its statements about the world are conditional on assumptions about the mechanism, independence, stability, the set of outcomes, and who knows and does what. This preprint reviews documented violations in coins, dice, cards, roulett...
- BiologyOpen access
Backward time travel raises a basic problem of causality: if an event in the past is modified, what becomes of the future that motivated the intervention? Standard treatments invoke self-consistency, branching histories, chronology protection or quantum models of closed timelike...