Kevin

old guy - young programmer

[Physics In History @PhysInHistory]

The double slit experiment was first performed by Thomas Young in 1801, as a demonstration of the wave nature of light. He used a coherent light source, such as sunlight or a candle, and passed it through a narrow slit in a card. Then he placed another card with two parallel slits close to the first one, and observed the light pattern on a screen behind the second card. He expected to see two bright spots on the screen, corresponding to the two slits, but instead he saw a series of bright and dark fringes, called an interference pattern. This meant that the light waves passing through the two slits interfered with each other, creating regions of constructive and destructive interference. This was evidence that light was not made of particles, as Isaac Newton had proposed, but of waves, as Christiaan Huygens had suggested.

However, with the development of quantum mechanics in the early 20th century, it was discovered that light could also behave like particles, called photons. In 1905, Albert Einstein explained the photoelectric effect by assuming that light was composed of discrete packets of energy that could knock electrons out of metals. In 1924, Louis de Broglie proposed that matter could also have wave properties, and derived a relation between the wavelength and momentum of any particle. In 1927, Clinton Davisson and Lester Germer, and independently George Thomson and Alexander Reid, confirmed this hypothesis by showing that electrons could produce interference patterns when scattered by crystals. Later, it was shown that atoms and molecules could also exhibit wave-particle duality.

The double slit experiment was then repeated with single photons or electrons, one at a time. Surprisingly, even when only one particle was sent through the slits at a time, an interference pattern still emerged on the screen after many repetitions. This meant that each particle somehow interfered with itself, as if it went through both slits at once. However, if detectors were placed at the slits to observe which slit each particle passed through, the interference pattern disappeared. This showed that the act of measurement affected the outcome of the experiment, and that the particle's behavior depended on whether it was observed or not. This phenomenon is known as quantum superposition and collapse, and it implies that quantum systems exist in a state of uncertainty until they are measured.

The experiment has profound implications for our understanding of reality and the nature of observation. It challenges our classical intuition and forces us to accept that reality is not deterministic but probabilistic at the quantum level.

[Kevin @poindextugh]

@0xojaxwi @abhi9u @vedang Maurice J Bach

[Ben Steiner @BenSteiner00]

I’ve seen a lot of the Toronto running community, but this guy wins.

[Linux Handbook @LinuxHandbook]

UNIX was developed on this computer model by Ken Thompson and Dennis Ritchie

Can you guess which computer is it?

[MY NAME IS MY NAME 🇺🇸🪮 @ctreid89]

This is science.

[Jeremy Wayne Tate @JeremyTate41]

Thread of religious wonders so surreal you won't believe they exist 🧵

1. Sumela Monastery, Turkey (386 AD)

[Physics In History @PhysInHistory]

Professor Richard Feynman playing bongo. ✍️

[tetsuo @tetsuoai]

Linus Torvalds explains "taste" in code by showing how to remove an entry from a singly linked list in C without adding extra complexity.

Source: TED

[Kevin @poindextugh]

@svpino Can you share brand/product details?

[Kevin @poindextugh]

@ThetaVegaCap If IPL/BCCI and Political parties pay taxes then nobody else needs to pay anything.

[Maxime Labonne @maximelabonne]

I made the closed-source vs. open-weight models figure for this moment.

[Massimo @Rainmaker1973]

Explaining a F1 Steering wheel's buttons

[🎞️ justf1car]

[Massimo @Rainmaker1973]

How smart do you think an animal can be?
https://t.co/6sDx6FzhuT

[Nature is Amazing ☘️ @AMAZlNGNATURE]

Here's the proof of that story we've read in that book 🥺😮

[Physics In History @PhysInHistory]

How physics should be taught in schools 👏

[Kevin @poindextugh]

@Sagarkaleankii @JaipurDialogues Patanjali ref https://t.co/GPiFUcjIta

[TheLiverDoc™ @theliverdoc]

@CeoVoice_ Sure my "kind" is Indian. Here is more on it.

[Kevin @poindextugh]

@JaipurDialogues Patanjali??? https://t.co/GPiFUcjIta

[TheLiverDoc™ @theliverdoc]

@CeoVoice_ Sure my "kind" is Indian. Here is more on it.

[Andrej Karpathy @karpathy]

Website: https://t.co/nj3uTrgPHI
GitHub: https://t.co/ubv4xONI57
𝕏: @EurekaLabsAI

[Nature is Amazing ☘️ @AMAZlNGNATURE]

A driver waits while watching a woodcock finish crossing the road. 😂

[Historic Vids @historyinmemes]

A father in Shandong, China, made his own aircraft carrier from stainless steel to fulfill his children's dream