scope guard

Jerobeam Fenderson shows how to draw a mushroom on an oscilloscope in XY mode using stereo audio, then animates it by modulating with a larger wave. Pd and Max4Live patches are provided.

Ben Krasnow shows the first image from his home-built scanning electron microscope, after months of work, and walks through how the parts operate together.

Planets is a track from the audiovisual album Oscilloscope Music, in which the audio signal drives an analog oscilloscope directly. The left channel sets horizontal deflection and the right sets vertical, so the sound draws vector graphics.

A 2019 Android Dev Summit session on the scoped storage model in Android 10. It gives a plan overview and best practices for apps adapting to the new restrictions.

David Kipping presents his proposed Terrascope, a telescope that uses Earth's atmosphere as a lens to achieve enormous magnification. He covers the history of telescopes and his path to the idea, plus Sol-scope and Jupiter-scope variants.

Real Engineering explains the engineering behind the James Webb Space Telescope, including its folding mirror, sunshield, orbit and cooling systems, and why deployment was so difficult.

Shahriar of The Signal Path tears down and experiments with Keysight's UXR real-time oscilloscope, which offers 110GHz bandwidth and 256GS/s sampling, and compares architectures from Keysight, LeCroy and Tektronix.

Andrei Alexandrescu's CppCon 2015 talk on handling exceptional control flow declaratively in C++. It uses scope guards with success and failure variants, built on std::uncaught_exceptions, to replace ad hoc RAII classes and rethrowing try/catch blocks.

A roughly 90-minute film of John Dobson building a Dobsonian telescope step by step, including hand-grinding the mirror.

A NASA video on the 29 days after the James Webb Space Telescope's launch, when thousands of parts must deploy in sequence on the way to its destination a million miles away.

PBS Space Time explains the proposal to use the Sun's gravity as a giant lens, sending a train of small light-sail spacecraft to the focal point roughly 550 AU out. It covers how such a telescope could image exoplanets in surprising detail and the engineering challenges involved.

Amateur footage of a Japanese coast guard boat riding up and over large tsunami waves after the March 2011 Tohoku earthquake. It is short and unedited.

A short clip of the Simpsons episode in which Homer designs a car with absurd requirements, used here as a lesson in project requirements and scope.

A demo of Quake's E1M1 rendered as vector graphics on a Hitachi oscilloscope. A laptop generates the audio signal that the scope draws.

Fraser Cain interviews JPL physicist Slava Turyshev about using the Sun's gravity as a lens to image distant exoplanets. They cover how the lens works, how a spacecraft would align with it, and mission design.

A timelapse compilation of the night sky above the Very Large Telescope at Paranal, Chile, using ESO photographers' footage set to music. It shows the stars wheeling overhead and the observatory at work.

Der8auer visits Tescan and uses an electron microscope to compare real transistor sizes on Intel 14nm and AMD 7nm chips. It shows that process node names do not match physical measurements.

An IIHS news release video showing crash tests in which truck underride guards fail at relatively low speeds. The institute petitions for a stronger federal standard.

AlphaPhoenix builds a scaled-down version of the Veritasium electricity thought experiment using about a kilometer of wire and an oscilloscope. He measures how the signal actually propagates and explains the result.

Microsoft's Tony Chen explains how the Xbox One was designed to resist physical attacks, including secure boot, encrypted memory, a security processor and a hypervisor. The goal was to make any hardware attack cost more than the price of many games.

Tony Chen of Microsoft explains at BlueHat Seattle 2019 how the Xbox One was designed to resist physical attacks. He covers the security design and hypervisor-based OS architecture that kept the console uncracked for years.

The Real News Network interview between Aaron Mate and Guardian reporter Luke Harding about Russiagate and Harding's book on alleged Russian collusion.

David Sachs of InvenSense explains how gyroscopes, accelerometers and compasses work on their own and together, demonstrated on a modified Android handset. He covers sensor fusion algorithms and why rotation math such as Euler angles matters.

Ben Eater explains why he builds computers on breadboards, including testing their signal behavior on an oscilloscope. It is a companion to his 6502 breadboard computer series.

Ben Krasnow of Applied Science uses a scanning electron microscope to compare new and worn toothbrush bristles. He shows how the microscopic texturing wears down with use.

IBM's record-setting stop-motion film made by moving individual carbon monoxide molecules with a scanning tunneling microscope, illustrating atomic-scale memory research.

Short footage of a Sprint missile from the 1970s Safeguard anti-ballistic missile system launching. The uploader notes the video is not sped up and that this is how fast it takes off.

Coast Guard footage of a Cirrus SR-22 pilot who ran out of fuel over the Pacific and deployed the airframe parachute, then escaped into a life raft. It shows the Cirrus Airframe Parachute System working in a real emergency.

Dave Jones of EEVblog investigates why a 4K BenQ monitor switches itself off, tracing it to static discharge from an office chair. He uses an oscilloscope to examine the static impulses.

A short Guardian clip of US Senator John McCain addressing protesters in Kiev's Independence Square in December 2013. He encourages them to continue peaceful protests for closer EU ties.

A short Guardian clip of historian Rutger Bregman at Davos telling attendees that the real issue is tax avoidance, not philanthropy schemes.

Guardian News coverage of Mark Zuckerberg's 2021 reveal of Facebook's metaverse plans alongside the rename to Meta. It shows a glimpse of the VR and AR vision.

Guardian News clip of Elon Musk announcing the 'Tesla Bot' at AI Day 2021, with a person dancing in a bodysuit on stage in place of a prototype.

A Guardian clip of Barack Obama at the Obama Foundation summit saying that call-out culture is not activism and that casting stones will not bring change.

Explains the proposed NASA JPL plan to use the Sun as a gravitational lens, sending solar sail craft to its focal region to image an exoplanet's surface. It covers the distances involved, how imaging with the Sun would work and the mission design.

Veritasium explains what a black hole should look like, using J.P. Luminet's 1979 work and a cardboard 3D model to show how light bends around it. It was made just as the first black hole image was released.

A two-minute minutephysics video explaining why turning a bicycle requires first steering briefly the other way. It covers counter-steering and balance with slow-motion footage and 3D animation.

Animator Joel Haver explains how he makes his short films using rotoscoping and the EbSynth tool, along with the software he uses. The method is a labor-intensive, frame-by-frame process.

A short IBM behind-the-scenes documentary on how researchers moved individual atoms to make the world's smallest movie. It introduces the scientists and their work on atomic memory and data storage.

A 1953 US Navy training film on the basic mechanisms in fire control computers: shafts, gears, cams and differentials. It shows how these mechanical parts compute ship and target firing solutions.