Home on vasileios balntas https://vbalnt.github.io/ Recent content in Home on vasileios balntas Hugo en-us Sat, 15 Mar 2025 00:00:00 +0000 When to Pick: The Statistics of Grape Harvest Timing https://vbalnt.github.io/posts/when-to-pick-grapes-brix-sampling/ Sat, 15 Mar 2025 00:00:00 +0000 https://vbalnt.github.io/posts/when-to-pick-grapes-brix-sampling/ <figure> <img src="https://vbalnt.github.io/images/grape-harvest/before-veraison.jpg" alt="/images/grape-harvest/before-veraison.jpg" title="/images/grape-harvest/before-veraison.jpg" /><figcaption> Savatiano grapes before veraison. Athens, 2024. </figcaption> </figure> <p> Every winemaker faces the same question each autumn: <em>when do I pick?</em> Pick too early and you get thin, acidic wine. Too late and you lose freshness, structure, and risk rot. The decision usually comes down to a single number: <strong>Brix</strong>.</p> <p> The problem is that measuring Brix from a handful of grapes at the edge of your vineyard will mislead you. Sampling a vineyard properly is a real statistical problem.</p> Linear B: Deciphering the Earliest Known Written Greek https://vbalnt.github.io/posts/linear-b-decipherment/ Mon, 10 Feb 2025 00:00:00 +0000 https://vbalnt.github.io/posts/linear-b-decipherment/ <figure> <img src="https://vbalnt.github.io/images/linear-b/py-ta-641.jpg" alt="/images/linear-b/py-ta-641.jpg" title="/images/linear-b/py-ta-641.jpg" /><figcaption> Tablet PY Ta 641 and its transcription. National Archaeological Museum, Athens. Photo: Yair-haklai, CC BY-SA 4.0. </figcaption> </figure> <p> These clay tablets are 3,200 years old. They predate Homer by 600 years and the Greek alphabet by 400. They are the oldest known texts in any European language.</p> <p> In 1952, a 30-year-old English architect named <strong>Michael Ventris</strong> announced he had deciphered the script on them. The language turned out to be Greek.</p> The Chemistry of Extra Virgin Olive Oil https://vbalnt.github.io/posts/science-of-extra-virgin-olive-oil/ Mon, 20 Jan 2025 00:00:00 +0000 https://vbalnt.github.io/posts/science-of-extra-virgin-olive-oil/ <figure> <img src="https://vbalnt.github.io/images/phaos.png" alt="/images/phaos.png" title="/images/phaos.png" /><figcaption> Olive groves in Methoni, Greece. <a href="https://www.phaos.farm">phaos.farm</a> </figcaption> </figure> <p> What makes an olive oil &#34;extra virgin&#34; and higher quality than others? Tip: It&#39;s not marketing, but chemistry. Two numbers tell most of the story: <strong>acidity</strong> (how degraded the oil is) and <strong>phenolic content</strong> (how protective and flavorful). Once you know what to look for, you can spot quality yourself.</p> <div id="outline-container-headline-1" class="outline-3"> <h3 id="headline-1"> Acidity: The Damage Meter </h3> <div id="outline-text-headline-1" class="outline-text-3"> <p> Olive oil is mostly triglycerides: three fatty acid chains attached to a glycerol backbone. About 70–80% of those chains are <strong>oleic acid</strong>, a monounsaturated fat (omega-9) that&#39;s more resistant to oxidation than the polyunsaturated fats in seed oils. This is partly why olive oil is more stable and resistant to going rancid.</p> About https://vbalnt.github.io/about/ Mon, 01 Jan 0001 00:00:00 +0000 https://vbalnt.github.io/about/ <p>I am an Honorary Research Associate at <a href="https://profiles.imperial.ac.uk/v.balntas">Imperial College London</a>.</p> <p>I run <a href="https://ifestos.ai">Ifestos.ai</a>, a robotics research consulting agency.</p> <p>Previously I was a Senior Research Science Manager at Meta Reality Labs Research, Head of Research at <a href="https://techcrunch.com/2020/02/08/scapebook/">Scape Technologies</a>, and a post-doctoral researcher at the <a href="https://www.robots.ox.ac.uk/ActiveVision/">University of Oxford</a>.</p> <p>Area chair and multiple outstanding reviewer awards at CVPR, ICCV, and other computer vision conferences. Young Researcher Travel Award at CVPR 2017. BAE and Thales MSc awards, 2009.</p>