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5563 results in History, Philosophy and Foundations of Physics

Page 15 of 279

Conversations on Quantum Gravity
  • Edited by Jácome (Jay) Armas
  • Published online:
    05 August 2021
    Print publication:
    26 August 2021
  • The holy grail of theoretical physics is to find the theory of everything that combines all the forces of nature, including gravity. This book addresses the question: how far are we from such discovery? Over the last few decades, multiple roads to finding a quantum theory of gravity have been proposed but no obvious description of nature has emerged in this domain. What is to be made of this situation? This volume probes the state-of-the art in this daunting quest of theoretical physics by collecting critical interviews with nearly forty leading theorists in this field. These broad-ranging conversations give important insights and candid opinions on the various approaches to quantum gravity, including string theory, loop quantum gravity, causal set theory and asymptotic safety. This unique, readable overview provides a gateway into cutting edge research for students and others who wish to engage with the open problem of quantum gravity.

  • 15 - The Big Bang Practice

  • Stefano Sandrone
  • Book:
    Nobel Life
    Published online:
    03 June 2021
    Print publication:
    17 June 2021, pp 153-160

  • Summary

    Professor Arno Penzias, you discovered, with Robert Wilson, the ‘cosmic microwave background radiation’,19 which helped establish the Big Bang theory of cosmology. For this, you won the Nobel Prize in Physics in 1978. Briefly, you were using an antenna to capture signals. A strange background noise remained after all the interferences had been eliminated. After checking the equipment, removing pigeons nesting in the antenna and cleaning out their droppings, the noise remained: the cosmic microwave background radiation.

  • 14 - Rocket Science

  • Stefano Sandrone
  • Book:
    Nobel Life
    Published online:
    03 June 2021
    Print publication:
    17 June 2021, pp 145-152

  • Summary

    Professor Kary Mullis, the discovery of PCR, short for polymerase chain reaction, allowed us to ‘photocopy’ the DNA, and you’re the man behind the discovery. Kids usually take sugar from their mum’s kitchen to eat it, whereas you often used it in a mixture with potassium nitrate to fuel home-made rockets.

  • 3 - Flying High

  • Stefano Sandrone
  • Book:
    Nobel Life
    Published online:
    03 June 2021
    Print publication:
    17 June 2021, pp 19-26

  • Summary

    Professor Richard Ernst, you were born and raised in the Swiss city of Winterthur. At that time, the philanthropist Werner Reinhart and conductor Hermann Scherchen took the local symphony orchestra, nowadays known as the Orchester Musikkollegium Winterthur, to a top level. You enjoyed live performances by some of the greatest performers of all time such as Clara Haskil, Igor Stravinsky and Pablo Casals, to name just a few.

  • 20 - Foreword to the Future

  • Stefano Sandrone
  • Book:
    Nobel Life
    Published online:
    03 June 2021
    Print publication:
    17 June 2021, pp 203-206

  • Summary

    This is why I am today here to ask and beg all of you, and particularly young people. Young people are terribly needed because their capacity to face problems is far better than that of the old people.

  • 10 - Know Thyself

  • Stefano Sandrone
  • Book:
    Nobel Life
    Published online:
    03 June 2021
    Print publication:
    17 June 2021, pp 103-110

  • Summary

    We don’t know what Darwin is doing right now; maybe he’s playing backgammon with Isaac Newton, as they rest in Westminster Abbey. Darwin and Newton are two icons of biology and physics. And biology and physics have been two key topics of your life, decades before becoming President of the Royal Society, which lists among its highest honours the Darwin Medal.

Page 15 of 279