droplets

<p>Why Sharper Knives Mean Fewer Onion Tears</p><p>Onions are a well-known source of tears for many a <a href="/tagged/cooking/" rel="nofollow">cook</a>. And while the chemical source of their power–onions release a chemical that reacts in our eyes to produce tears–has been known for years, no one has looked at the fluid dynamics in the process <a href="https://doi.org/10.1073/pnas.2512779122" rel="nofollow">until now</a>.</p><p>As seen above, a knife piercing the onion’s surface releases a mist of high-speed droplets, followed by a slower spray. Much like a <a href="/2019/05/bartenders-and-citrus-lovers-the-world-over-are/" rel="nofollow">citrus fruit’s microsprays</a>, the onion’s fountain depends on both solid and fluid mechanics. As the knife presses into the onion’s stiffer outer layer, pressure builds in the softer layer underneath, which contains pores of fluid. Once the knife breaks the epidermis, that pressurized fluid sprays out.</p><p>The good news is that the team also confirmed a common culinary wisdom: using a sharper knife and a slower, gentler cut will reduce the spray and its speed, resulting in fewer tears. (Image credit: <a href="https://unsplash.com/photos/a-person-chopping-onions-on-a-cutting-board-wAoExtOVzXg" rel="nofollow">M. Stone</a>; research credit: <a href="https://doi.org/10.1073/pnas.2512779122" rel="nofollow">Z. Wu et al.</a>)</p><p><a href="/tags/biology/" rel="tag">#biology</a> <a href="/tags/cooking/" rel="tag">#cooking</a> <a href="/tags/droplets/" rel="tag">#droplets</a> <a href="/tags/fluiddynamics/" rel="tag">#fluidDynamics</a> <a href="/tags/onion/" rel="tag">#onion</a> <a href="/tags/physics/" rel="tag">#physics</a> <a href="/tags/science/" rel="tag">#science</a> <a href="/tags/sprays/" rel="tag">#sprays</a></p>

<p><a href="/tags/furnace/" rel="tag">#Furnace</a> in a <a href="/tags/tulip/" rel="tag">#Tulip</a> 2 by Kaye Menner <a href="/tags/photography/" rel="tag">#Photography</a> Wide variety <a href="/tags/prints/" rel="tag">#Prints</a> &amp; lovely <a href="/tags/products/" rel="tag">#Products</a> at: </p><p><a href="https://kaye-menner.pixels.com/featured/furnace-in-a-tulip-2-kaye-menner.html" rel="nofollow" class="ellipsis" title="kaye-menner.pixels.com/featured/furnace-in-a-tulip-2-kaye-menner.html"><span class="invisible">https://</span><span class="ellipsis">kaye-menner.pixels.com/feature</span><span class="invisible">d/furnace-in-a-tulip-2-kaye-menner.html</span></a> </p><p><a href="/tags/droplets/" rel="tag">#droplets</a> <a href="/tags/night/" rel="tag">#night</a> <a href="/tags/nightlight/" rel="tag">#nightlight</a> <a href="/tags/macro/" rel="tag">#macro</a> <a href="/tags/stamen/" rel="tag">#stamen</a> <a href="/tags/light/" rel="tag">#light</a> <a href="/tags/redyellow/" rel="tag">#redyellow</a> <a href="/tags/homedecor/" rel="tag">#homedecor</a> <a href="/tags/mastoart/" rel="tag">#mastoart</a> <a href="/tags/fediverse/" rel="tag">#fediverse</a> <a href="/tags/fediart/" rel="tag">#fediart</a> <a href="/tags/fedigiftshop/" rel="tag">#fedigiftshop</a> <a href="/tags/giftideas/" rel="tag">#giftideas</a> <a href="/tags/wallartforsale/" rel="tag">#wallartforsale</a> <a href="/tags/art/" rel="tag">#Art</a> <a href="/tags/artforsale/" rel="tag">#artforsale</a> <a href="/tags/buyintoart/" rel="tag">#BuyIntoArt</a> <a href="/tags/ayearforart/" rel="tag">#AYearForArt</a> <a href="/tags/artist/" rel="tag">#Artist</a> <a href="/tags/fineartamerica/" rel="tag">#FineArtAmerica</a> <a href="/tags/photographyfeed/" rel="tag">#PhotographyFeed</a> <a href="/tags/visualarts/" rel="tag">#VisualArts</a> <a href="/tags/creativearts/" rel="tag">#CreativeArts</a></p>

<p><a href="/tags/dew/" rel="tag">#Dew</a>-Kissed <a href="/tags/lily/" rel="tag">#Lily</a> of the <a href="/tags/valley/" rel="tag">#Valley</a> by Kaye Menner Wide variety <a href="/tags/prints/" rel="tag">#Prints</a> &amp; lovely <a href="/tags/products/" rel="tag">#Products</a> at:</p><p><a href="https://kaye-menner.pixels.com/featured/dew-kissed-lily-of-the-valley-by-kaye-menner-kaye-menner.html" rel="nofollow" class="ellipsis" title="kaye-menner.pixels.com/featured/dew-kissed-lily-of-the-valley-by-kaye-menner-kaye-menner.html"><span class="invisible">https://</span><span class="ellipsis">kaye-menner.pixels.com/feature</span><span class="invisible">d/dew-kissed-lily-of-the-valley-by-kaye-menner-kaye-menner.html</span></a> </p><p><a href="/tags/floral/" rel="tag">#floral</a> <a href="/tags/flowers/" rel="tag">#flowers</a> <a href="/tags/whiteflowers/" rel="tag">#whiteflowers</a> <a href="/tags/droplets/" rel="tag">#droplets</a> <a href="/tags/waterdroplets/" rel="tag">#waterdroplets</a> <a href="/tags/pretty/" rel="tag">#pretty</a> <a href="/tags/digitalart/" rel="tag">#digitalart</a> <a href="/tags/ai/" rel="tag">#ai</a> <a href="/tags/homedecor/" rel="tag">#homedecor</a> <a href="/tags/mastoart/" rel="tag">#mastoart</a> <a href="/tags/fediverse/" rel="tag">#fediverse</a> <a href="/tags/fediart/" rel="tag">#fediart</a> <a href="/tags/fedigiftshop/" rel="tag">#fedigiftshop</a> <a href="/tags/giftideas/" rel="tag">#giftideas</a> <a href="/tags/wallartforsale/" rel="tag">#wallartforsale</a> <a href="/tags/art/" rel="tag">#Art</a> <a href="/tags/artforsale/" rel="tag">#artforsale</a> <a href="/tags/buyintoart/" rel="tag">#BuyIntoArt</a> <a href="/tags/ayearforart/" rel="tag">#AYearForArt</a> <a href="/tags/artist/" rel="tag">#Artist</a> <a href="/tags/fineartamerica/" rel="tag">#FineArtAmerica</a> <a href="/tags/photographyfeed/" rel="tag">#PhotographyFeed</a> <a href="/tags/visualarts/" rel="tag">#VisualArts</a> <a href="/tags/creativearts/" rel="tag">#CreativeArts</a></p>

Tiny baubles.<br><br>📍 Irvine, California<br>🗓️ December 17, 2025<br>📷 Sony a7iii, Olympus Zuiko 50mm f/3.5 Macro with Extension Tube 25<br><br><a href="/tags/photography/" rel="tag">#photography</a> <a href="/tags/macro/" rel="tag">#macro</a> <a href="/tags/macrophotography/" rel="tag">#macrophotography</a> <a href="/tags/droplets/" rel="tag">#droplets</a> <a href="/tags/vintagelens/" rel="tag">#vintagelens</a> <a href="/tags/vintagelenses/" rel="tag">#vintagelenses</a>

<p><a href="/tags/rain/" rel="tag">#Rain</a> <a href="/tags/soaked/" rel="tag">#Soaked</a> <a href="/tags/daisy/" rel="tag">#Daisy</a> Print by Kaye Menner <a href="/tags/photography/" rel="tag">#photography</a> <a href="/tags/prints/" rel="tag">#prints</a> <a href="/tags/lovely/" rel="tag">#lovely</a> <a href="/tags/products/" rel="tag">#products</a> at:</p><p><a href="https://kaye-menner.pixels.com/featured/rain-soaked-daisy-kaye-menner.html" rel="nofollow" class="ellipsis" title="kaye-menner.pixels.com/featured/rain-soaked-daisy-kaye-menner.html"><span class="invisible">https://</span><span class="ellipsis">kaye-menner.pixels.com/feature</span><span class="invisible">d/rain-soaked-daisy-kaye-menner.html</span></a></p><p><a href="/tags/photography/" rel="tag">#photography</a> <a href="/tags/floral/" rel="tag">#floral</a> <a href="/tags/flower/" rel="tag">#flower</a> <a href="/tags/droplets/" rel="tag">#droplets</a> <a href="/tags/petals/" rel="tag">#petals</a> <a href="/tags/macro/" rel="tag">#macro</a> <a href="/tags/whitepetals/" rel="tag">#whitepetals</a> <a href="/tags/waterdroplets/" rel="tag">#waterdroplets</a> <a href="/tags/bluecenter/" rel="tag">#bluecenter</a> <a href="/tags/bluestamen/" rel="tag">#bluestamen</a> <a href="/tags/homedecor/" rel="tag">#homedecor</a> <a href="/tags/mastoart/" rel="tag">#mastoart</a> <a href="/tags/fediverse/" rel="tag">#fediverse</a> <a href="/tags/fediart/" rel="tag">#fediart</a> <a href="/tags/fedigiftshop/" rel="tag">#fedigiftshop</a> <a href="/tags/giftideas/" rel="tag">#giftideas</a> <a href="/tags/wallartforsale/" rel="tag">#wallartforsale</a> <a href="/tags/art/" rel="tag">#Art</a> <a href="/tags/artforsale/" rel="tag">#artforsale</a> <a href="/tags/buyintoart/" rel="tag">#BuyIntoArt</a> <a href="/tags/ayearforart/" rel="tag">#AYearForArt</a> <a href="/tags/artist/" rel="tag">#Artist</a> <a href="/tags/fineartamerica/" rel="tag">#FineArtAmerica</a> <a href="/tags/photographyfeed/" rel="tag">#PhotographyFeed</a> <a href="/tags/visualarts/" rel="tag">#VisualArts</a> <a href="/tags/creativearts/" rel="tag">#CreativeArts</a></p>