uncleflo
Registered since September 28th, 2017
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How to fully repaint bare epoxy / carbon fibre
Saved by uncleflo on February 13th, 2022.
How to fully repaint bare epoxy / carbon fibre. Paint Guide AW071. This guide when: I am going to work on a surface above the waterline change, I want to paint my boat change, I want to do a full paint or repaint, I am going to paint my hull / cabin / trims, The part I want to paint is epoxy composite / carbon fibre, The surface is bare and The surface is showing no defects. Before any project, take these things into account to get the best results: A fast drying, single pack, conventional primer for use above the waterline. Pre-Kote is specially formulated for marine conditions and for all substrates under one-pack topcoats. A premium, long-life gloss marine enamel perfect for all substrates above the waterline. High-gloss finish that has been optimised for easy roller application Interprotect is a high performance two pack primer/undercoat. Suitible for above and below the waterline.
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Wilko Grey Seat Pad 43 x 43cm | Wilko
Saved by uncleflo on February 13th, 2022.
From crafting and building to make-believe play and fairy-tale fun, we’ve got some great options to top up the toy box and keep the kids busy for hours. Shop offers for up to half price on selected toys. Style up your stationery for school, college or the home office. Shop all your favourite brands including BiC, Stabilo, Crayola, Sharpie and more. With a 100% cotton cover and generous filling, this grey seat pad makes a hard chair surface nice and comfy. This seat pad has neat tie backs and is 43 x 43cm in size.
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The Boat Design Directory from Boat Design Net - the Boat Design and Boatbuilding Site
Saved by uncleflo on February 9th, 2022.
Boat Design . Net - Connecting Boat Designers and Boatbuilders on the Net. Boat Design and Boat Building Projects, Plans, Software, Books, Concepts, Reviews, and Resources. Discussion forums: boat design, boat building, powerboats, sailboats, multihulls, design software, education, services and employment. Join in the boat design & boatbuilding discussion forums today! A gallery of professional and student design work, projects in process, power and sail. Please post your boat design & boat building images for everyone to see. A marine design directory and search engine. Boat plans, designers, boatbuilders, materials, powerboats, catamarans, propulsion, sailboats, multihulls, shipyards, software, books, & resources. A site connecting boat builders and designers, showcasing innovations in design and construction and providing access to articles, resources, software, and inspirational sites.
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Compact XFoil Board Claims It Can Reach Speeds Comparable to 500 HP Boats
Saved by uncleflo on January 25th, 2022.
Compact but powerful, versatile, and capable of reaching speeds comparable to 500 hp speed boats, the XFoil is a three-in-one watercraft that allows you to ride on the surface of the water or fly above it. As fun as water sports can be, they are also money guzzlers. Especially if you want to make the best of them. Not everyone can afford to buy both a surfboard and a SUP (stand-up paddleboard), or a hydrofoil board, although it would be nice to be able to ride all of them. Designed in Silicon Valley, California, by PLX Devices, XFoil promises to offer the perfect solution: a watercraft that can serve as all of the above, while also making you feel like you’re in a high-performance speed boat. Everything is wrapped in a compact, lightweight, and durable package that’s small enough to fit in your mid-size sedan.
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Scuba Masks by HydroOptix -- Buy -- Prices
Saved by uncleflo on January 17th, 2022.
Our Double-Double dive masks' patented optics provide razor-sharp Panoramic Views, 350% greater than conventional flat dive masks, completely free of distortions, no matter where you look. HydroOptix Double-Dome scuba masks give divers superior situational awareness and eye-hand coordination -- your time underwater becomes safer, more productive and enjoyable.
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Electropolishing - Wikipedia
Saved by uncleflo on April 3rd, 2021.
Electropolishing, also known as electrochemical polishing, anodic polishing, or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece, reducing the surface roughness by levelling micro-peaks and valleys, improving the surface finish. It is used to polish, passivate, and deburr metal parts. It is often described as the reverse of electroplating. It may be used in lieu of abrasive fine polishing in microstructural preparation. Typically, the work-piece is immersed in a temperature-controlled bath of electrolyte and serves as the anode; it is connected to the positive terminal of a DC power supply, the negative terminal being attached to the cathode. A current passes from the anode, where metal on the surface is oxidised and dissolved in the electrolyte, to the cathode. At the cathode, a reduction reaction occurs, which normally produces hydrogen. Electrolytes used for electropolishing are most often concentrated acid solutions having a high viscosity, such as mixtures of sulfuric acid and phosphoric acid. Other electropolishing electrolytes reported in the literature include mixtures of perchloric acid with acetic anhydride (which has caused fatal explosions), and methanolic solutions of sulfuric acid.
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Surface Modeling with Fusion 360 - YouTube
Saved by uncleflo on December 20th, 2019.
Learn the fundamentals of surface modeling with Fusion 360's Patch workspace in this step-by-step tutorial by Taylor Stein (@taylor_stein).
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N330 (VBHN330SJ53) solar panel | Panasonic
Saved by uncleflo on December 20th, 2019.
Our solar panel Panasonic HIT N330 has the highest output of all our products, reaching 330 Watt in just 1.67 m2 of surface. With less than 160cm of length, it has 25% more output power than a standard solar panel of similar size. (265 Watt) The frame is anodyzed and black, with corner water drainage to keep your solar panels cleaner all year long and give a monochrome, appealing appearance for the solar system on your roof.
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Pre-Treatments, De-greasers, Primers & Sub Aquatic Coatings.
Saved by uncleflo on December 19th, 2019.
In addition to our "run of the mill" pool paints and coatings, we also manufacture a variety of performance paints and coatings for sub aquatic environments and surfaces such as pontoons, lock gates, water-wheels, sumps, bunds, sewage treatment plant, windfarm floors etc. These performance paints are ideal for areas or situations where water, chemical, oil or petroleum products are spilled, splashed or flooded and create hazardous environments. Chlorinated Rubber Paint is an air drying, single pack system resistant to a wide range of chemicals, sewage and mineral oil. Having excellent exterior durability and heat resistance, R10 is ideally suited for application to brickwork, slate roofs, steel, chemical storage tanks, bridges, marine equipment, swimming pool surrounding walls, floors and ceilings, sewage tanks etc. More information.Product Code - R10
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Geothermal pile foundations - Designing Buildings Wiki
Saved by uncleflo on December 18th, 2019.
Geothermal energy is the second most abundant source of heat on earth, after solar energy. It is the natural heat energy stored in the earth. This energy is contained in about 260 billion cubic metres of rocks and metallic alloys, just below the outer surface of the earth, that are at or near their melting points (Lanterman & Lee, 2007). Calculations show that the Earth, originating from a completely molten state, would have cooled and become completely solid if the only energy input was that of the Sun, so it is believed that the ultimate source of geothermal energy is the decay of naturally radioactive isotopes (Dincer et al., 2007). The thermal energy from the earth continuously flows outwards. This heat transfer from the core to the surrounding mantle is principally via conduction. When the temperature and pressure of the system becomes high enough, some of the rocks that make up the mantle melt and form magma. As the liquid magma is less dense than surrounding rocks, it slowly rises, convecting thermal heat towards the earth’s crust (Lanterman & Lee, 2007).
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Videos - Leading Non-Skid Pattern Mold Maker | Gibco Flex Mold
Saved by uncleflo on October 12th, 2019.
A collection of our most popular patterns to match existing nonskid surfaces. Useful resource for fiberglass repair companies, boat yards and manufacturers. Technical Guides, videos and lots of information about non-skid surfaces.
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Gelcoat non skid repair using Flex Mold - YouTube
Saved by uncleflo on October 12th, 2019.
Gelcoat non skid repair using Flex Mold - Another great video from JB Currell of Masepoxies.com. Learn how to apply non-skid gelcoats/topcoats on ship surfaces.
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How to Keep Polished Brass From Tarnishing - Hunker.com - By Brenda Priddy
Saved by uncleflo on February 23rd, 2019.
Brass will automatically start to tarnish if exposed to oxygen. The only way to prevent polished brass from tarnishing is to coat it with a layer of clear sealer that will prevent air from reaching the brass itself. Many brass surfaces come with this finish originally, but it can wear down over time. Refresh the coating every few years to keep the brass shiny and like-new without frequent polishing. A clear polyurethane sealer will protect the brass from oxygen exposure without causing discoloration.
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Teak Deck Fabrication and Installation
Saved by uncleflo on January 31st, 2019.
Youtube movie on how to do the teak decking on boats. Includes references to products by some really good manufacturers. A tutorial on how to fabricate and install a small teak deck as a highlight on your boat using materials from Teak Decking Systems and an overview of their products.
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Power Sails, Sails Built with Integral Solar Panels
Saved by uncleflo on September 14th, 2018.
Alain Janet is pretty talkative these days, and with good reason. The head of the UK Sailmakers loft in southern France, Janet has spent most of his adult life making sails and working on how to make them better—not just for sailors, but also for the environment. Alain Janet is pretty talkative these days, and with good reason. The head of the UK Sailmakers loft in southern France, Janet has spent most of his adult life making sails and working on how to make them better—not just for sailors, but also for the environment.
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Microsoft - There’s a Surface Pro that’s perfect for you
Saved by uncleflo on March 8th, 2018.
Laptop Mode: Transform Surface Pro into Laptop Mode by opening the built-in Kickstand and adding our new Surface Pro Signature Type Cover,* featuring luxurious Alcantara® material and an exceptionally responsive, full keyboard experience. Surface Pro in Studio Mode: Lower the Kickstand — now featuring a deeper, next-generation hinge — to place Surface Pro in Studio Mode for the perfect writing and drawing angle with the new Surface Pen.* Surface Pro in Tablet Mode: Close the Kickstand, and remove or fold Surface Pro Signature Type Cover* back for a powerful, stand-alone Intel® tablet.
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Manage all your social media in one place
Saved by uncleflo on January 24th, 2018.
From finding prospects to serving customers, Hootsuite helps you do more with your social media. Learn how Hootsuite makes finding, scheduling, managing, and reporting on social media content easier. Save time by scheduling your social posts. Keep your social presence active 24/7 by automatically scheduling hundreds of social media posts at once, across your social accounts. Manage social content with ease. Stay on message with pre-approved content your teams can post, stored in your favorite cloud file service. Tagging, searching, and usage stats make curating content a breeze. Track and prove social ROI. Measure the impact of your social media campaigns through comprehensive reporting. Measure conversions by social channel and separate ROI between owned and paid media. Surface the conversations that matter
Find and filter social conversations by keyword, hashtag, and location—in multiple languages—to hear what people are saying about your brand, competitors, and industry.
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earth :: a global map of wind, weather, and ocean conditions
Saved by uncleflo on October 15th, 2016.
A visualization of global weather conditions, forecast by supercomputers, updated every three hours. Ocean surface, current estimates, updated every five days, ocean surface temperatures and anomaly from daily average (1981-2011)
updated daily. Ocean waves updated every three hours.
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Same Side Technique, Point in triangle test
Saved by uncleflo on February 22nd, 2015.
A common way to check if a point is in a triangle is to find the vectors connecting the point to each of the triangle's three vertices and sum the angles between those vectors. If the sum of the angles is 2*pi then the point is inside the triangle, otherwise it is not. It works, but it is very slow. This text explains a faster and much easier method.
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Ray(/segment)-triangle intersection tests for dummies :P
Saved by uncleflo on February 22nd, 2015.
There are various ray-tri tests around. I'll describe a few of the most interesting ones because I think that there's no "definitive" ray-tri intersection. Much depends on the type of application you're going to develop. Some methods are faster if most of the tests are positive (hit), some if they are not (early rejection). Some use lots of memory to precalculate as much as possible so they are very fast for scenes with no cache-hit problems (for examples in scenes with not so many, big triangles and spatial subdivision), while others use less memory and no precalc. etc... The precalculation option is often important so I'll talk about it more here. There are two kinds of precalculations that could be useful: per-frame precalculation (something that can be precalculated for the entire scene, for every triangle, and that just needs to be updated if the triangles are animated, if it changes their position in the next frame). The other type is per-ray-bundle precalculation.
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Calculating reflected ray
Saved by uncleflo on February 22nd, 2015.
This short note gives the equation for a reflected ray as used in many computer rendering applications, eg: ray tracing. Given a ray Ri incident at a point on a surface with normal N one wishes to determine the reflected ray from that point. The geometry and nomenclature is given in the following diagram.
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Intersections of Rays, Planes and Triangles (3D)
Saved by uncleflo on February 22nd, 2015.
The intersection of the most basic geometric primitives was presented in the Algorithm 5 about Intersections of Lines and Planes. We will now extend those algorithms to include 3D triangles which are common elements of 3D surface and polyhedron models. We only consider transversal intersections where the two intersecting objects do not lie in the same plane. Ray and triangle intersection computation is perhaps the most frequent nontrivial operation in computer graphics rendering using ray tracing. Because of its importance, there are several published algorithms for this problem (see: [Badouel, 1990], [Moller & Trumbore, 1997], [O'Rourke, 1998], [Moller & Haines, 1999]). We present an improvement of these algorithms for ray (or segment) and triangle intersection. We also give algorithms for triangle-plane and triangle-triangle intersection.
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Buzz Aldrin
Saved by uncleflo on September 2nd, 2014.
Selected by NASA in 1963 into the third group of astronauts, Aldrin was the first with a doctorate and became known as “Dr. Rendezvous.” The docking and rendezvous techniques he devised for spacecraft in Earth and lunar orbit became critical to the success of the Gemini and Apollo programs, and are still used today. He also pioneered underwater training techniques, as a substitute for zero gravity flights, to simulate spacewalking. In 1966 on the Gemini 12 orbital mission, Buzz performed the world’s first successful spacewalk, overcoming prior difficulties experienced by Americans and Russians during extra-vehicular activity (EVA), and setting a new EVA record of 5 ½ hours. On July 20, 1969, Buzz and Neil Armstrong made their historic Apollo 11 moonwalk, becoming the first two humans to set foot on another world. They spent 21 hours on the lunar surface and returned with 46 pounds of moon rocks.
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Stresses in Beams, David Roylance, MIT
Saved by uncleflo on September 2nd, 2014.
Understanding of the stresses induced in beams by bending loads took many years to develop. Galileo worked on this problem,but the theory as we use it today is usually credited principally to the great mathematician Leonard Euler (1707{1783). As will be developed below, beams develop normal stresses in the lengthwise direction that vary from a maximum in tension at one surface, to zero at the beam's midplane, to a maximum in compression at the opposite surface. Shear stresses are also induced, although these are often negligible in comparision with the normal stresses when the length-to-height ratio of the beam is large.
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Review: DigitalPersona U.are.U Personal fingerprint scanner.
Saved by uncleflo on June 4th, 2014.
Biometric authentication seems to be, on the face of it, a groovy idea. Do away with hard-to-remember passwords and easy-to-lose keys and cards; authenticate your identity with your voice, or your face, or your fingerprint. What could possibly be wrong with that? Well, lots of things, actually. High on the list is the fact that if biometric authentication is compromised - if someone finds a way to fake your voice or face or finger - you're up a brown and smelly creek without any way to propel your barbed wire canoe.
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