Has a Korean quantum research group cracked the holy grail of physics, an ambient temperature and pressure superconductor that will win them a Nobel prize and change humanity forever? Probably not. Dave completely busts the demo video of their LK-99 material with a pracitcal lab example, it’s such an embarrassing ...
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A teardown of a very interesting bit of optometry kit, a Shin Nippon NVISION K-5001 RefKeratometer (Auto Refractor Keratometer). It can measure the curvature of your cornea, and well as refractive error to diagnose near and far sightedness. Links: https://www.rexxam.co.jp/themes/eye-care/products/images/nvk5001/NvisionK5001.pdf https://www.academia.edu/59315264/Clinical_Evaluation_of_the_Shin_Nippon_NVision_K_5001_Grand_Seiko_WR_5100K_Autorefractor https://www.opticsforhire.com/blog/keratometer-optical-design/ Manual: https://www.yumpu.com/en/document/read/25018677/english-manual Forum: https://www.eevblog.com/forum/blog/eevblog-1554-optometrist-autorefractor-keratometer-teardown!/
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Dave visists the world’s first commercial solar power station in White Cliffs, a small opal mining town in outback Australia. Built in 1981 and using 14 heliostatic tracking 5m diameter dishes, this concentrated thermal solar plant produced 25kW of power using a steam generator. Links: https://en.wikipedia.org/wiki/White_Cliffs_Solar_Power_Station Analysis report: https://eevblog.com/files/sustain_renew_solar_white_cliffs_project_report.pdf Mirror ...
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A first look at the new Digilent Analog Discovery 3, plus teardown. 00:00 – Unboxing the new Digilent Analog Discovery 3 02:23 – New features 05:00 – The price and comparison with a benchtop scope 06:19 – Teardown and comparison with Analog Discovery 2 10:18 – Nice design touches https://digilent.com/blog/whats-different-with-the-analog-discovery-3/ ...
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Looking at a Ukrainian Starlink dish PCB that was DESTROYED by shrapnel! https://olegkutkov.me/ https://twitter.com/olegkutkov https://radionavlab.ae.utexas.edu/wp-content/uploads/2023/01/starlink_structure.pdf https://www.theverge.com/2021/11/11/22776563/spacex-starlink-rectangular-dish-router-mounting-internet-satellites https://i.blackhat.com/USA-22/Wednesday/US-22-Wouters-Glitched-On-Earth.pdf https://cdn.intechopen.com/pdfs/37016/InTech-Antenna_designs_with_electromagnetic_band_gap_structures.pdf https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2017-0197 00:00 – Ukrainian Starlink dish PCB that was DESTROYED by shrapnel! 15:18 – Snaptron Solderable tactile PCB Domes https://www.snaptron.com/ Forum: https://www.eevblog.com/forum/blog/eevblog-1551-destroyed-ukrainian-starlink-pcb!-mailbag/
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