Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
The neutrino was in fact first discovered indirectly. Early in the twentieth century, physicists studying radioactive decay noticed that energy was missing from certain decays. Since energy must be conserved, Wolfgang Pauli proposed a new, neutral, very light, invisible particle to carry away the missing energy.
