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John Bell
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- 1How the EPR paradox was finally put to the test●The EPR paradox (1935) argued that quantum mechanics was incomplete. In 1964, John Bell showed the question could be tes
The 1935 Einstein-Podolsky-Rosen paradox argued that quantum mechanics was incomplete. In 1964, John Bell showed the question could be tested experimentally. Experiments between 1972 and 2015, including a Delft test measuring entangled electron spins 1.3 kilometres apart, found correlations that no local hidden variable theory can explain, settling the debate in favour of quantum mechanics.
- 2Stocks slump as bond market worries bite▼Stocks slump as bond market worries bite https://www.standard.co.uk/business/business-news/john-healey-stocks-london-nat
Stock markets fell as growing concerns in the bond market weighed on investor sentiment, with London-listed names including NatWest and AJ Bell among those affected. The story also references Defence Secretary John Healey in connection with the day's market coverage. Investors are watching borrowing costs and government debt closely as worries about bond spreads and fiscal pressures unsettle equities.