Archive for August 2019

Photographer Reveals The Behind-The-Scenes Of His Instagram-Worthy Photos (18 Pics) | Bored Panda

https://www.boredpanda.com/photography-reality-behind-the-scenes-calob-castellon/ We are mesmerized by the beauty and quality of some Instagram photographs. And it often leaves us wondering if all these people have personal professional photographers and a free pass to a fancy studio. It appears that is not always the case… This article probes that quite unexpected everyday places can create an out-of-this-world

Volvo’s Gift To The World, Modern Seat Belts Have Saved Millions Of Lives

https://www.forbes.com/sites/douglasbell/2019/08/13/60-years-of-seatbelts-volvos-great-gift-to-the-world/ Volvo proudly exclaim that: “few people have saved as many lives as Nils Bohlin”. 2019 is the 60th anniversary of Bohlin’s breakthrough idea used by billions of people: The 3-point safety belt has saved hundreds-of-thousands of lives and prevented or reduced the severity of injuries for millions of people. Nils Bohlin is the little-known

Friday Fun: Sandstorm

Device Orchestra is back with another track, this time taking on Darude’s Sandstorm. Listen to the 2000 dance hit played on a pair of electric toothbrushes, an electric typewriter, and some credit card terminals: bit.ly/2KJjQNv

AC Powered LEDs Could Cut The Cost Of Lighting IEEE Spectrum – IEEE Spectrum

https://spectrum.ieee.org/energywise/semiconductors/optoelectronics/acpowered-leds-could-cut-the-cost-of-lighting “Engineers at Pennsylvania State University have demonstrated a practical way to integrate gallium nitride LEDs and their power supply circuits onto the same chip using industry-standard manufacturing processes.” The results promise a cheap lighting chip that runs directly from the AC electricity supplied by a wall outlet (110-120V AC). Researchers say that this makes

NanoVNA handheld Vector Network Analyzer (VNA)

NanoVNA is a small handheld Vector Network Analyzer (VNA). It is equippedwith lcd display, portable device with battery(battery not included). This project aim to provide an RF gadget but useful instrument for enthusiast. The device hardware offers 50k-300MHz frequency range that can be expended up to 900 MHz (with somewhat less dynamics on higher frequencies).

Cheap spectrum analyzer and signal generator

In search for some cheap and useful RF test hardware, I came by Geekcreit® Spectrum Analyzer USB LTDZ_35-4400M_Spectrum Signal Source with Tracking Source Module RF Frequency Domain Analysis Tool at sale price of aroundy $30/EURO30. It looked to have quite promising specifications: Attribute: RF frequency domain analysis tool Interface: usb Power supply: usb Standby current:

Telephone history from Tekniikan Museo

Here is some telephone history from Tekniikan museo museum located at Helsinki Finland. Here is once possibly the most common phone model used in Finland (Ericsson Dialog from 1964). Ans one very old telephone   Here is the first automatic telephone center in Finland from 1922.       Those pictures were taken few months

Extension cord failure and teardown

I had some problem with breakers tripping. Then the source of the problem turned to be this extension cord made by Bachmann. Sparking and blackening outside and also inside It seems that child protection mechanism failed and part of it was stuck between contact bars. This then caused sparking on contacts, which caused blackening. End