My spreadsheet doesn't do that! #shorts #excel #elevator #histogram #schedule #simulation #autofill @cyamahat

Uploaded January 2025 | Updated September 2026, 2 weeks ago

I took a minute to run a Monte Carlo simulation and work up those figures.

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🔗 If you're planning to complete a PERT-based Monte Carlo schedule analysis, don’t miss this Observable notebook:
observablehq.com/@christophe-yamahata/pert-monte-carlo-schedule-analysis
(PERT-Based Monte Carlo Schedule Analysis)

⚙️ In addition, an enhanced and optimized CodePen project—including the beta-PERT model—brings together the essential features of this notebook, allowing users to run schedule analyses on the fly:
codepen.io/Christophe-Yamahata/full/jENXKrL

🕰️ If you want to take a step back in time, check out the original 1992 advertisement for Microsoft Excel:
youtu.be/vBygxmW_Xnc&t=134s

#montecarlosimulation #simulation #criticalpath #cpm #pmp #schedule #projectmanagement #datavisualization #javascript #graphviz #handsontable #observable

My spreadsheet doesnt do that! #shorts #excel #elevator #histogram #schedule #simulation #autofill

⑤ Richard Feynman: The Distinction of Past and Future (Colorized) — The Character of Physical Law

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$Spectrometry, DIY Experiment & Laboratory Spectrometer | Observing Fraunhofer Lines and Fluorescence 🔬 Light Spectrum Experiments: DIY with Diffraction Grating & Spectrometer Analysis In this technical video, I demonstrate a simple DIY experiment using a holographic diffraction grating to observe Fraunhofer lines (solar absorption lines). The setup is followed by a series of measurements using an Ocean Optics USB2000 laboratory spectrometer. In addition to the solar spectrum, the video also explores fluorescence phenomena, using olive oil illuminated by a blue LED as an example. 📌 Keywords: diffraction grating, optics, spectrometer, Ocean Optics, USB2000 ▬▬ 🕒 Video Chapters: 00:00 – Experiment with holographic diffraction grating (visual observation of solar spectrum) 01:54 – Spectrometer measurements: Fraunhofer lines & fluorescence (olive oil + blue LED) 05:07 – Other technical videos on this YouTube channel ▬▬ 🔗 Useful Links (Spectrometry, Radiometry, and Photometry): • Holographic Diffraction Grating Film, Edmund Optics #54-510 — https://www.edmundoptics.com/f/holographic-diffraction-grating-film/11661/ • Schematic of the DIY Experiment Setup — https://i.imgur.com/QLZhsdH.png • Color, CIE diagram (notebooks, Observable platform) — https://observablehq.com/collection/@christophe-yamahata/colour • Human vision and the CIE chromaticity diagram (technical report, EN) — http://dx.doi.org/10.13140/RG.2.2.31371.30242 • The Geometry of Colours (video, EN) — https://www.youtube.com/watch?v=7KYwi2F5Ce4 • Broadband radiometric measurement of light-emitting diodes with a photodiode (white paper, EN) — http://dx.doi.org/10.13140/RG.2.2.34765.05600/2 • Fraunhofer Lines — https://en.wikipedia.org/wiki/Fraunhofer_lines / https://en.wikipedia.org/wiki/File:Solar_spectral_irradiance.svg • Why you cant take a good picture of a rainbow (video, Steve Mould) — https://www.youtube.com/watch?v=HauiF_AQUIY • Its a double rainbow all the way! (viral video, Yosemitebear) — https://www.youtube.com/watch?v=OQSNhk5ICTI No discussion about rainbows would be complete without mentioning the legendary viral video by Yosemitebear. It went viral for its genuine emotional reaction, paired with rather poor color reproduction.$

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