(arquivo Fernando Correia de Oliveira)
quinta-feira, 13 de agosto de 2026
Meditações - o tempo existe?
Lido aqui:
Time is the one thing every human experience is built around. The possibility that it is not fundamental to reality comes not from philosophy but from the equations themselves.
When
physicists attempt to merge quantum mechanics with general relativity, the math
produces something strange. In the Wheeler-DeWitt equation, one of the primary
attempts to describe quantum gravity, time simply does not appear. The equation
works without it. The universe it describes is static. Nothing changes.
This led
physicist Carlo Rovelli to propose that time is not a fundamental feature of
the universe but an emergent one, arising from relationships between physical
systems rather than existing as an independent backdrop. Change is fundamental.
Time as a universal ticking clock is an approximation that breaks down at the
quantum level.
Julian
Barbour argued more radically that the universe is a vast collection of static
moments and that what we experience as the flow of time is the brain
constructing a narrative connecting snapshots. Nothing flows. The sensation of
time passing is an internal feature of consciousness, not an external feature
of reality.
The block
universe interpretation of general relativity goes further. Past, present, and
future all exist simultaneously as a four-dimensional structure. Time does not
flow. We exist at a particular location within it.
Every
fundamental law of physics works equally well forwards or backwards in time.
Only the second law of thermodynamics treats past and future differently. The
arrow of time may be statistical rather than fundamental.
If time
does not exist at the quantum scale or near singularities, the clocks we built
and the urgency we feel about every passing moment may be a local approximation
of something the universe does not actually require.
If time
turns out to be something your brain constructs rather than something real,
does that change how you plan to spend it?
Source:
Carlo Rovelli, The Order of Time; Julian Barbour, The End of Time
quarta-feira, 12 de agosto de 2026
Os relógios Glashütte Original no Relógios & Canetas online
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terça-feira, 11 de agosto de 2026
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Os relógios Giuliano Mazzuoli no Relógios & Canetas online
Livro do dia - Cartier 1900 - 1939 (1997)
Biblioteca horológica de Fernando Correia de Oliveira (doação Judite Torgal Amaral)
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Meditações - um tempo que exorbita do relógio
Mário Cláudio, Pôr-do-sol com leão deitado (contribuição de Isabel Campos)
segunda-feira, 10 de agosto de 2026
Os relógios Girard-Perregaux no Relógios & Canetas online
Livro do dia - Inde Mystérieuse / Cartier (sd)
Biblioteca horológica de Fernando Correia de Oliveira (doação Judite Torgal Amaral)
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Meditações - As três dimensões do tempo
lido aqui:
A new
theory suggests time flows in *three* directions, shaping space itself — and it
could finally bridge relativity and quantum physics.
A bold new
theory from Dr. Gunther Kletetschka at the University of Alaska Fairbanks
proposes that time itself has three dimensions — not one. According to the
research, space isn’t the foundation of reality at all, but rather a byproduct
of multidimensional time — like a picture painted onto a temporal canvas. The
framework suggests a universe built from six total dimensions: three of space
and three of time.
Unlike many
speculative theories, this one makes testable predictions, including precise
calculations for the masses of fundamental particles such as electrons, muons,
and quarks — a mystery that has puzzled physicists for decades. If correct, it
could help unify Einstein’s relativity with quantum mechanics, bridging the gap
between the cosmic and quantum realms for the first time.
In this model, one time dimension represents our familiar forward flow, another allows for alternate versions of the same moment, and the third governs transitions between those realities — potentially enabling movement across timelines. Crucially, it still preserves cause and effect. Though speculative, this theory could mark a step toward the long-sought “Theory of Everything.”
Source: “Three-Dimensional Time: A Mathematical Framework for Fundamental Physics,” Reports in Advances of Physical Sciences, 2025.
domingo, 9 de agosto de 2026
Os relógios Gerald Charles no Relógios & Canetas online
Livro do dia . Passion. Engineered. Relógios IWC (2005)
Biblioteca horológica de Fernando Correia de Oliveira (doação Judite Torgal Amaral)
Meditações - a quarta dimensão
When you’re a child you learn there are three dimensions
Height,
width and depth
Like a
shoebox
Then later
you hear there’s a fourth dimension
Time
Hmm
Then some
say there can be five, six, seven…
I knock off
work
Have a beer
at the bar
I look down
at the glass and feel glad
The poems recited by the main character in the film Paterson were written by real-life American poet Ron Padgett. He wrote several original poems specifically for the movie and also allowed director Jim Jarmusch to use some of his previously published work.
sábado, 8 de agosto de 2026
Os relógios Frederique Constant no Relógios & Canetas online
Livro do dia - ballon bleu de Cartier (2007)
Biblioteca horológica de Fernando Correia de Oliveira (doação Judite Torgal Amaral)
Meditações - vivemos um tempo sem memória
No Diário Popular de sábado, 9 de Fevereiro de 1974. Opinião de Giscard d'Éstaing, à altura, Ministro das Finanças de França. Valéry Marie René Georges Giscard d'Estaing foi um político francês de centro-direita que exerceu pouco depois o cargo de Presidente da República Francesa, de 1974 a 1981. (arquivo Fernando Correia de Oliveira)
sexta-feira, 7 de agosto de 2026
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quinta-feira, 6 de agosto de 2026
Os relógios F.P. Journe no Relógios & Canetas online
Livro do dia - Cartier / La montre Tank (1998)
Biblioteca horológica de Fernando Correia de Oliveira (doação Judite Torgal Amaral)
As novidades em canetas Montblanc, Montegrappa e Visconti
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