Husband and Shoelaces

No votes yet
Your rating: None

“I am going to go fishing at the Jamba Club with Jerry now.” Aaron said to his wife Daisy.
“Fine, fine, just leave your wife in the house to do all the heavy housework.” Daisy complained.
“Don’t act like that. You know how I care about you” Aaron gave Daisy a goodbye kiss and went out.
Four hours later, Aaron came back with a triumph smile on his face. The clock just passed 5:00p.m.
Daisy was preparing for dinner, “Hey, sweetheart, I am sure you have a good time fishing. Now come and eat the most delicious meal you wife has cooked for you.”
“Oh, thank you.” Aaron said unfeelingly.
“Why Aaron is acting so apathetically to me? Sometimes he is like entangled and I can’t tell whether he loves me or not” Daisy wondered.
While they were having dinner, Daisy turned on the TV news as usual.
“Look! A robbery just happened a few minutes ago, around 5:30, at No Name Lane. Aaron, just one block away your Jamba Club. You are so ‘lucky’!” Daisy exclaimed, “Remember last time when you went to the Whole Joe’s, a crime happened nearby also.”
“Yeah, lucky me. The police suck at finding out the true secret.” Aaron said scornfully.
In the police station, the new police detective Darcy was reviewing the record captured by the street monitor. He noticed that the criminal tied one knot of shoelaces. After checking the people who were around there during that afternoon, Darcy aimed at Aaron as one of the suspects.
The next morning:  “Hi, Mr. and Mrs. Laoli! I am Darcy who is in charge of the case happened yesterday in No Name Lane. And I am here to ask you some questions.”
“Sure, Come in please.” Daisy said.
Daisy provided a strong alibi that yesterday at 5:30p.m Aaron was in the home, having dinner with her. Even though Aaron totally matched the figure in the crime scene recording, Darcy hadn’t collected enough evidence to suspend Aaron. So he had to accept the alibi. He decided to leave first.
“I am going out too.” Aaron took his shoes from the closet.
“He makes two knots of his shoelaces” Darcy noticed Aaron’s action.
When Darcy came back to his office, he started to review the whole case carefully. He found that Aaron entered the club with his best friend Jerry but he left alone. Where did Jerry go? Does Aaron really love Daisy? The interactions between them seemed a little bit awkward to me. With all these confusion, Darcy headed to Jerry’s house.
“Hi, Jerry. I’m police detective Darcy. I just talked to your best friends Aaron and his wife this morning. Would you mind to tell me something about him too?”
“No problem. I would love to help you.” Jerry replied without hesitation. “By the way, is Daisy fine? She used to be afraid of being questioned by police.”
 During the talk, Darcy felt that Jerry’s action and tone was almost the same as Aaron’s.
“There is definitely no doubt that you and Aaron are best friends. Except the appearance, I would think you were twin brothers” Darcy joked. In a flash of lightening, Darcy noticed Jerry’s almost negligible uneasiness about his comments.
“Is there possibility that they are actually twins? And why Jerry cares about Daisy so much? He seems to love Daisy. Ah! Maybe they are entangled. Therefore Daisy’s husband loves and also doesn’t love her. I need to test it” Darcy wondered in his mind.
“It’s a little bit late. I need to go back now. Would you mind to show me the way to the nearest café so I can grab some coffee?”
“Sure, Sure.” Jerry replied and tied one knot in his shoelace.
Now Darcy had a conclusion in mind.
The next day, Darcy called in Aaron, Jerry and Daisy.
“Would you mind to retie your shoelaces in front of us, Mr. Laoli?” Darcy asked
With doubts, Daisy’s husband did what he was asked to do, tying one knot of his shoelace.
“You love Daisy.” Darcy said with confidence, “How frequently you switch!”
“What are you talking about? I don’t understand” Daisy’s husband was pretending to be calm.
“Do you want me to take off your disguise?” Darcy said seriously to Jerry.
Aaron and Jerry exchanged looks and gave up. Jerry tore off his fake mustache and wig and he washed his face thoroughly.
“Oh, My God!” Daisy screamed. There are two exactly same faces before her. “Who is my husband? What is going on right now?”
Knowing they could no longer hide the truth. Aaron and Jerry exchanged looks again and Aaron confessed: “Since my twin brother Jerry and I look exactly the same, we think we can play the trick of entanglement. I fell in love with Daisy, and even though Jerry does not love Daisy, both of us become Daisy’s husband. But Daisy doesn’t know that we are entangled so she always complains that she doesn’t know whether her husband loves her or not. The day before yesterday, I left Daisy at home. When Jerry and I were in the Jamba club, Jerry gave me his disguise and went back home to have dinner with Daisy. Meanwhile I walked to the No Name Lane and committed the crime. This was not the first time we used this trick. We committed a crime near Whole Joe’s last time but the police did not find out. Now Daisy knows when her husband ties one knot in his shoelaces, he loves her; when her husband ties two knots in his shoelaces, he doesn’t love her.” 

Newsletter Signup

Submit your email address so we can send you occasional competition updates and tell you who wins!

Quantum Theories

W is for ... Wave-particle duality

It is possible to describe an atom, an electron, or a photon as either a wave or a particle. In reality, they are both: a wave and a particle.

N is for ... Nonlocality

When two quantum particles are entangled, it can also be said they are “nonlocal”: their physical proximity does not affect the way their quantum states are linked.

M is for ... Multiverse

Our most successful theories of cosmology suggest that our universe is one of many universes that bubble off from one another. It’s not clear whether it will ever be possible to detect these other universes.

M is for ... Many Worlds Theory

Some researchers think the best way to explain the strange characteristics of the quantum world is to allow that each quantum event creates a new universe.

O is for ... Objective reality

Niels Bohr, one of the founding fathers of quantum physics, said there is no such thing as objective reality. All we can talk about, he said, is the results of measurements we make.

H is for ... Hawking Radiation

In 1975, Stephen Hawking showed that the principles of quantum mechanics would mean that a black hole emits a slow stream of particles and would eventually evaporate.

I is for ... Information

Many researchers working in quantum theory believe that information is the most fundamental building block of reality.

K is for ... Kaon

These are particles that carry a quantum property called strangeness. Some fundamental particles have the property known as charm!

I is for ... Interferometer

Some of the strangest characteristics of quantum theory can be demonstrated by firing a photon into an interferometer: the device’s output is a pattern that can only be explained by the photon passing simultaneously through two widely-separated slits.

L is for ... Light

We used to believe light was a wave, then we discovered it had the properties of a particle that we call a photon. Now we know it, like all elementary quantum objects, is both a wave and a particle!

C is for ... Computing

The rules of the quantum world mean that we can process information much faster than is possible using the computers we use now.

Q is for ... Quantum biology

A new and growing field that explores whether many biological processes depend on uniquely quantum processes to work. Under particular scrutiny at the moment are photosynthesis, smell and the navigation of migratory birds.

S is for ... Schrödinger Equation

This is the central equation of quantum theory, and describes how any quantum system will behave, and how its observable qualities are likely to manifest in an experiment.

L is for ... Large Hadron Collider (LHC)

At CERN in Geneva, Switzerland, this machine is smashing apart particles in order to discover their constituent parts and the quantum laws that govern their behaviour.

D is for ... Decoherence

Unless it is carefully isolated, a quantum system will “leak” information into its surroundings. This can destroy delicate states such as superposition and entanglement.

C is for ... Cryptography

People have been hiding information in messages for millennia, but the quantum world provides a whole new way to do it.

R is for ... Radioactivity

The atoms of a radioactive substance break apart, emitting particles. It is impossible to predict when the next particle will be emitted as it happens at random. All we can do is give the probability that any particular atom will have decayed by a given time.

B is for ... Bell's Theorem

In 1964, John Bell came up with a way of testing whether quantum theory was a true reflection of reality. In 1982, the results came in – and the world has never been the same since!

T is for ... Teleportation

Quantum tricks allow a particle to be transported from one location to another without passing through the intervening space – or that’s how it appears. The reality is that the process is more like faxing, where the information held by one particle is written onto a distant particle.

Y is for ... Young's Double Slit Experiment

In 1801, Thomas Young proved light was a wave, and overthrew Newton’s idea that light was a “corpuscle”.

W is for ... Wavefunction

The mathematics of quantum theory associates each quantum object with a wavefunction that appears in the Schrödinger equation and gives the probability of finding it in any given state.

J is for ... Josephson Junction

This is a narrow constriction in a ring of superconductor. Current can only move around the ring because of quantum laws; the apparatus provides a neat way to investigate the properties of quantum mechanics.

E is for ... Entanglement

When two quantum objects interact, the information they contain becomes shared. This can result in a kind of link between them, where an action performed on one will affect the outcome of an action performed on the other. This “entanglement” applies even if the two particles are half a universe apart.

R is for ... Reality

Since the predictions of quantum theory have been right in every experiment ever done, many researchers think it is the best guide we have to the nature of reality. Unfortunately, that still leaves room for plenty of ideas about what reality really is!

S is for ... Schrödinger’s Cat

A hypothetical experiment in which a cat kept in a closed box can be alive and dead at the same time – as long as nobody lifts the lid to take a look.

X is for ... X-ray

In 1923 Arthur Compton shone X-rays onto a block of graphite and found that they bounced off with their energy reduced exactly as would be expected if they were composed of particles colliding with electrons in the graphite. This was the first indication of radiation’s particle-like nature.

T is for ... Tunnelling

This happens when quantum objects “borrow” energy in order to bypass an obstacle such as a gap in an electrical circuit. It is possible thanks to the uncertainty principle, and enables quantum particles to do things other particles can’t.

S is for ... Superposition

Quantum objects can exist in two or more states at once: an electron in superposition, for example, can simultaneously move clockwise and anticlockwise around a ring-shaped conductor.

P is for ... Probability

Quantum mechanics is a probabilistic theory: it does not give definite answers, but only the probability that an experiment will come up with a particular answer. This was the source of Einstein’s objection that God “does not play dice” with the universe.

G is for ... Gravity

Our best theory of gravity no longer belongs to Isaac Newton. It’s Einstein’s General Theory of Relativity. There’s just one problem: it is incompatible with quantum theory. The effort to tie the two together provides the greatest challenge to physics in the 21st century.

A is for ... Alice and Bob

In quantum experiments, these are the names traditionally given to the people transmitting and receiving information. In quantum cryptography, an eavesdropper called Eve tries to intercept the information.

F is for ... Free Will

Ideas at the heart of quantum theory, to do with randomness and the character of the molecules that make up the physical matter of our brains, lead some researchers to suggest humans can’t have free will.

G is for ... Gluon

These elementary particles hold together the quarks that lie at the heart of matter.

D is for ... Dice

Albert Einstein decided quantum theory couldn’t be right because its reliance on probability means everything is a result of chance. “God doesn’t play dice with the world,” he said.

U is for ... Uncertainty Principle

One of the most famous ideas in science, this declares that it is impossible to know all the physical attributes of a quantum particle or system simultaneously.

R is for ... Randomness

Unpredictability lies at the heart of quantum mechanics. It bothered Einstein, but it also bothers the Dalai Lama.

U is for ... Universe

To many researchers, the universe behaves like a gigantic quantum computer that is busy processing all the information it contains.

A is for ... Act of observation

Some people believe this changes everything in the quantum world, even bringing things into existence.

Q is for ... Qubit

One quantum bit of information is known as a qubit (pronounced Q-bit). The ability of quantum particles to exist in many different states at once means a single quantum object can represent multiple qubits at once, opening up the possibility of extremely fast information processing.

P is for ... Planck's Constant

This is one of the universal constants of nature, and relates the energy of a single quantum of radiation to its frequency. It is central to quantum theory and appears in many important formulae, including the Schrödinger Equation.

Z is for ... Zero-point energy

Even at absolute zero, the lowest temperature possible, nothing has zero energy. In these conditions, particles and fields are in their lowest energy state, with an energy proportional to Planck’s constant.

V is for ... Virtual particles

Quantum theory’s uncertainty principle says that since not even empty space can have zero energy, the universe is fizzing with particle-antiparticle pairs that pop in and out of existence. These “virtual” particles are the source of Hawking radiation.

A is for ... Atom

This is the basic building block of matter that creates the world of chemical elements – although it is made up of more fundamental particles.

H is for ... Hidden Variables

One school of thought says that the strangeness of quantum theory can be put down to a lack of information; if we could find the “hidden variables” the mysteries would all go away.

B is for ... Bose-Einstein Condensate (BEC)

At extremely low temperatures, quantum rules mean that atoms can come together and behave as if they are one giant super-atom.