Inside Technology

How devices, digital systems, materials, machines and infrastructure work.

13articles

Roteador em uma casa moderna com ondas coloridas de 2,4, 5 e 6 GHz atravessando cômodos e uma parede espessa.

Inside Technology22/09/20268 min read

2.4, 5 or 6 GHz Wi-Fi: why walls change range, speed and stability

See how distance, walls, concrete floors, congestion and compatibility affect 2.4, 5 and 6 GHz Wi-Fi, and which band to test in each situation.

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Pessoa diante de um laptop com visualização 3D de Marte, cercada por uma paisagem marciana estilizada.

Inside Technology04/09/20265 min read

NASA Eyes now lets you fly across all of Mars: how to use free-fly in your browser

The August Eyes on the Solar System update added full Mars terrain. Learn how to activate free-fly, use its controls, and understand what changes beyond desktop.

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Smartphone conectado ao carregador com tela mostrando 80% e indicadores de proteção da bateria, temperatura, carregamento adaptativo e possível falha.

Inside Technology24/08/20269 min read

Phone stops charging at 80%: when it is battery protection and when it may be a problem

If your phone gets stuck near 80%, the cause may be a charge limit, adaptive optimization, heat protection, or a fault. See how to tell each case apart.

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Smartphone aberto em visualização tecnológica com bateria interna destacada, indicador de 37%, medições de tensão, corrente e temperatura e sequência de queda para 20% e quase zero.

Inside Technology21/08/20268 min read

How the cell phone calculates the battery percentage and why it sometimes skips or is wrong

Battery percentage is an estimate that combines current, voltage, temperature and aging. Understand why the number may freeze, jump or reach shutdown before 0%.

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Smartphone com a tela levantada pelo inchaço interno da bateria, ao lado de um cabo de carregamento desconectado

Inside Technology19/08/20266 min read

Swollen cell phone battery: how to recognize it, why it happens and why to stop using it

Screen or lid lifting may indicate a swollen battery. Understand why this happens, what signs to watch for and why use should be stopped.

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Smartphone em capinha transparente sobre base de carregamento sem fio, com bobinas internas, campo magnético e diagramas de alinhamento e desalinhamento.

Inside Technology17/08/20269 min read

Why wireless charging heats up your phone - and what alignment, case and Qi2 change

Wireless charging always involves losses. Understand where heat originates, why misalignment worsens efficiency and how caps and Qi2 alter coupling.

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QR Code impresso e danificado, com borda rasgada e parte coberta por fita preta, sendo escaneado por um celular com efeitos azuis de leitura.

Inside Technology17/08/20268 min read

Why does a QR Code still work when torn or covered? What Error Correction Really Recovers

A QR Code tolerates some of the damage because it carries redundancy, but the correction does not reconstruct any part of the image: it recovers data within limits.

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Panela metálica sobre cooktop de indução, com ilustração de campo magnético, correntes induzidas e teste de ímã em uma base compatível.

Inside Technology17/08/20267 min read

How the induction cooker heats the pan without "turning on" the burner - and why not every pan works

The induction cooktop creates a variable magnetic field that heats the pan itself. Understand induced currents, the magnet test and why the glass still heats up.

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Passageira em cabine de avião usa fones over-ear, com ondas azuis simbolizando o ronco contínuo e ondas laranjas representando vozes e sons repentinos.

Inside Technology17/08/20268 min read

Why does noise cancellation erase the plane's rumble, but let voices and sudden sounds through?

ANC works best against continuous and low-pitched noise. Understand how anti-noise, delay, frequency, sealing, and microphones explain why voices and impacts still get through.

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Close de smartphone com dedo nu tocando uma grade luminosa de sensores, dedo com luva à esquerda e gotas de água sobre a tela à direita.

Inside Technology17/08/20269 min read

How the touch screen detects your finger - and why gloves and water change the result

The capacitive screen measures tiny changes in the capacitance of a grid of sensors. Gloves reduce the signal, while water changes the pattern that the controller needs to interpre...

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Cozinha com micro-ondas ligado ao lado de um roteador, ondas ilustradas de 2,4 GHz e 5 GHz e notebook e celular exibindo travamento de conexão.

Inside Technology16/08/20269 min read

Why Microwaves Can Take Down 2.4GHz Wi-Fi and What 5GHz, Distance, and Shielding Change

Microwaves and 2.4GHz Wi-Fi share a nearby radio band. Understand why crashes occur, when 5 GHz helps, and why it doesn't measure oven safety.

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Smartphone em modo avião ao lado de uma representação de satélites GPS e mapa offline, mostrando diferentes fontes de localização.

Inside Technology09/08/20266 min read

What happens to location in airplane mode: GPS, offline maps and auxiliary networks

Airplane mode doesn't mean location is off: GPS, maps, routes, and live data depend on different sources. See what continues to work offline.

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