J. R. Smolka

21/03/2022

"Well, Mr. Frankle started this program and began to suffer from a disease, the computer disease, that anybody who works with computers now knows about. It’s a very serious disease and it interferes completely with the work. It was a serious problem that we were trying to do. The disease with computers is that you play with them. They are so wonderful. You have these x switches that determine, if it’s an even number you do this, if it’s an odd number you do that, and pretty soon you can do more and more elaborate things if you are clever enough, on one machine.
[...]
but if you’ve ever worked with computers you understand the disease. The DELIGHT to be able to see how much you can do."

Richard Feynman
The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman

Guest Post by Willis Eschenbach Thanks to Nick Stokes, who pointed me to the University of Melbourne Computer Model Intercomparison Project 6 (CMIP6) data repository, I got data on rainfall from th…

21/03/2022

https://wattsupwiththat.com/2022/03/21/wuwt-contest-winner-general-audience-1st-place-is-there-really-a-climate-crisis%ef%bf%bc/

In sum, encouraging the energy industry to innovate will lead to a prosperous, clean and secure environment not only for us here in the United States but also for the world as a whole.

21/03/2022

O telescópio espacial James Webb (JWST) ainda está em processo de comissionamento dos instrumentos a bordo, mas já começa a produzir imagens.

Nasa's James Webb Space Telescope 16 SHOCKING IMAGES.The James Webb Space Telescope has been designed to answer many of the core questions that have animated...

29/01/2022

Tinha até esquecido deste site. Recordar é viver...

Earth-Moon Fire Pole My son (5y) asked me today: If there were a kind of a fireman's pole from the Moon down to the Earth, how long would it take to slide all the way from the Moon to the Earth? Ramon Schönborn, Germany First, let's get a few things out of the way: In real life, we can't put a meta...

26/01/2022

Inserção na órbita em torno do L2 realizada com sucesso!
Faltam alguns meses de resfriamento, ajustes e calibragens para iniciar a operação.

Interactively explore Webb's deployments on this page. Webb is NASA's largest and most powerful space science telescope ever constructed. Webb’s enormous size and frigid operating temperature present extraordinary engineering challenges. After launching from French Guiana, the observatory will tra...

04/01/2022

Talvez a etapa mais complicada foi superada. Agora vamos ao espelho secundário e primário!

The James Webb Space Telescope team has fully deployed the spacecraft’s 70-foot sunshield, a key milestone in preparing it for science operations.

28/11/2020

Depois de um longo intervalo, retomei as publicações no meu canal do TouTube: Eng J R Smolka.

O assunto agora é: como ficou a programação em Node Red para o servidor SCADA e para um CLP, ambos implementados sobre Raspberry Pi.

Espero que gostem.

13/09/2020

A explicação do autor do vídeo contém uma pegadinha, o que torna a resposta dele errada.

Você consegue descobrir onde está o erro dele?

Problem: Circle A has 1/3 the radius of circle B, and circle A rolls one trip around circle B. How many times will circle A revolve in total? 1982 SAT Questi...

01/08/2020

Saiu mais um vídeo do meu canal, Eng J R Smolka no YouTube!!

Agora começando a colocar a mão na massa na construção do protótipo do sistema SCADA.

Assunto do dia: fazendo o setup do Raspberry Pi.

Atividades de configuração inicial do Raspberry Pi para uso no protótipo SCADA

19/07/2020

Uma das coisas pela qual tenho muito interesse é física. Para aqueles que, como eu, gostam do assunto e querem um resumo atualizado do conhecimento atual sobre a física, recomendo enfáticamente a série de vídeos que o Sean Carrol está publicando no Youtube, chamada The Biggest Ideas in the Universe.
Até aqui são 17 tópicos já publicados, cada um com um vídeo explicando o tópico e outro vídeo respondendo a perguntas feitas pelas pessoas.
Os tópicos abordados (até agora) são:
1. Conservation
2. Change
3. Force, Energy and Action
4. Space
5. Time
6. Spacetime
7. Quantum Mechanics
8. Entanglement
9. Fields
10. Interactions
11. Renormalization
12. Scale
13. Geometry and Topology
14. Simmetry
15. Gauge Theory
16. Gravity
17. Matter

This is an introduction to a series of videos I'm planning, informal discussions of some big idea in physics or related fields. Symmetry, space, matter, thin...