Science Blogs

Browse the best science blogs from independent writers on BlogRolly.

• The Miraculous Benefits of Blue Butterfly Pea Flower — Curious about how to get prettier skin and a calmer mind? I guide you through blue butterfly pea flower benefits and how
• Oxytocin, the Love and Connection Hormone — Feeling distant from your partner after menopause? In this post I explain how oxytocin, the love and connection hormone,
• Tips for students with ADHD
• What science can (and still can’t) tell us about our dreams
• Penis Facts — Surprising fact: we all start as female in the womb, and the head of the penis and clitoris are the same tissue. I expla
• Vulva & Vagina Facts — Ever wondered about the difference between vulva and vagina? In this clear sex education post I walk through vulva vs va
• Debunking The Myth That Sperm Solely Determines Egg Fertilization — Think sperm race to the egg? Think again. In this post I explain how the female reproductive tract and the egg guide and
• Speeding Culture — Think our roads encourage speeding? Using the DfT vehicle speed compliance statistics I lay out why car and van drivers
• Fabulous Fendon Road — A surprise Dutch-style roundabout in Cambridge? My folding bike took me to the Fendon Road roundabout to see a UK versio
• A Tale of Two Zebras — Two zebra crossings, two very different takes on road safety. On my bike I rode to St John's Wood to photograph Westmins
• Go With The (Contra)Flow — Surprising fact, contraflow cycling has been in UK guidance since 1978. Dusting off the Bicycle Planning Book, Traffic A
• Rediscovering Sketching — Sketches saved me from endless CAD edits. I show hand sketches and NanoCAD plans for cycle crossing design, walking cycl
• What Exactly Is A Design Classic? — A tweet comparing a secure cycle parking shelter to a pig shelter kicked off a debate on what makes a design classic. I
• Denial Of Service — Imagine hauling a Christmas tree through freezing rain on a bike. That pop up treecycling drop off saved me and laid bar
• Traffic Congestion For Plumbers — Surprising fact: Julius Caesar once banned carts to beat congestion. With plumbing roots and a love of roads I explain t
• Priced Off The Roads — Curious what road pricing would mean for UK drivers and motoring tax revenue? I show how electric vehicles are eating fu
• Traffic Signal Pie - First Slice — Curious about traffic signal pie, first slice? I walk through how Pelican, Puffin and Toucan crossings work, explain pus
• The Non-story of 20mph Enforcement In London — Surprised by headlines claiming record 20mph fines in London? I compare Andrew Ellson's Times piece with Metropolitan Po
• Kerb Your Enthusiasm — On holiday in Cardiff Bay a pedestrian dropped kerb with a 25mm upstand caught my eye. I explain why flush kerbs matter
• Traffic Signal Pie: Double Standards — Shocking double standards in traffic signal design at A12 Eastern Avenue and Aldborough Road North South made me write t
• When Abandoned Mines Collapse — Massive sinkholes on I-80 near Wharton, New Jersey forced repeated closures. I'm Grady of Practical Engineering, and wit
• How Sewage Recycling Works — What happens when a city nearly runs out of water and turns wastewater into drinking water? I walk through how sewage re
• The Hidden Engineering of Floating Bridges — Ever wondered how a bridge can float? This Practical Engineering video transcript follows my tour of floating bridge eng
• Why Are There No Short Arch Dams? — Surprising fact: arch dams are rare and all about height. In this Practical Engineering transcript I explain why there a
• California’s Tallest Bridge Has Nothing Underneath — Ever wondered why California's tallest bridge seems to have nothing underneath? This transcript of my Practical Engineer
• The Weirdest Tool in Underwater Construction — Weirdest tool in underwater construction: bubbles. I tell how Caltrans found pile driving noise harming fish after the L
• An Engineer's Perspective on the Texas Floods — How a stuck midnight storm on July 4, 2025 drove a record Guadalupe River rise and created one of the deadliest inland T
• The Bizarre Bases of Antenna Towers — Remember the Warsaw Radio Mast collapse in 1991? In this Practical Engineering post I explain why guyed masts have those
• Concrete’s Greatest Weakness — A deadly lesson from Skyline Plaza shows how under-cured concrete collapses. I cast concrete cylinders in my garage to s
• Hurricane vs. Tiny House — What happens when a simulated storm surge hits a tiny house? At O.H. Hinsdale Wave Research Laboratory I watch a wave ta
• Recreating an Ancient Pump (with no moving parts) — Could a medieval fortress be fed by a pump with no moving parts? I'm Grady, and I recreate the Alhambra's suspected puls
• Earthquake-Proof Foundations — USC Keck stayed open during the Northridge quake because of its foundation. This Practical Engineering video transcript
• The Hidden Engineering of Niagara Falls — Standing at the rim of Horseshoe Falls, I map the hidden engineering of Niagara. This transcript of my video tours the N
• The Hidden Engineering Behind the Falkirk Wheel — A rotating boat lift sounds like science fiction. I unpack the hidden engineering behind the Falkirk Wheel, explain how
• Sawing a Dam in Half (on Purpose) — Surprising fact, concrete is the second most consumed substance on Earth. In this transcript of my video I tell the stor
• Do Retention Ponds Actually Work? — Curious if retention ponds actually work? At Atlanta's Historic Fourth Ward Park I show how a 5 acre stormwater pond sol
• So You Want to Build a Tunnel... — Want a backyard tunnel? This transcript of my Practical Engineering video explains how to build a tunnel at home safely,
• That Magic Gene… — Surprising fact: my raw genome report fits on an 800 MB CD-ROM. I found I'm a CCR5-Δ32 homozygote, conferring genetic im
• The Challenges of Large Collaborations in STEM — New arXiv study on well being in big science flags the challenges of large collaborations in STEM, from job insecurity t
• Why Would Aliens Care About Us? — What if aliens came for our DNA, not our water? Here I question the Fermi Paradox and the sample size N=1 problem, and a
• My Inner Space Child — Space posters covered my walls in the sixties, and my Inner Space Child still lights up for rockets. I tour Orbiter 2016
• What If Space Really Sucks? — What if space really sucks? I riff on a Space Review essay and The Expanse, arguing Mars colonization challenges show sp
• Integral Launch and Reentry Vehicle: Triamese (1968-1969) — A surprising 1968 shuttle idea imagined three identical modules lifting a Space Base for 100 people by 1980. I walk you
• A Year in Orbit Using Apollo Technology: Command and Service Module for Longevity (1966) — Curious how Apollo hardware could keep astronauts aloft for a year? I show William Hough's 1966 CSM for Longevity study,
• Space Shuttle External Tank (ET) Applications: ET as Space Facility (1982) — Ever wondered how the Shuttle's giant External Tank became both fuel farm and structural backbone? In this post I follow
• Apollo-Soyuz II (1974) — Imagine a 1977 Apollo-Soyuz Test Project revival. In this post I trace the NASA Flight Operations Directorate study for
• The Challenge of the Planets, Part Three: Gravity — A comet once shone as brightly as Jupiter, then vanished. I trace Lexell's Comet's dramatic 1770 close approach and why
• Could the Space Voyages in the Film and Novel "2001: A Space Odyssey" Really Happen? (Part 2) — What if Discovery's engines actually worked? I trace Clarke's plasma jet and Kubrick's skeletal Discovery, compare the n
• Could the Space Voyages in the Film and Novel "2001: A Space Odyssey" Really Happen? — Could 2001: A Space Odyssey really happen? I revisit my childhood obsession and unpack NASA Glenn papers by Stanley Boro
• Could the Space Voyages in the Film and Novel "2001: A Space Odyssey" Really Happen? (Part 3) — Saturn up close is weirder than any movie set. In Part 3 of my series on could the space voyages in 2001 A Space Odyssey