What I understand of perlin noise is based on paramat's explanations and painfully slow trial and error. I'm still confused about how offset and scale work - and how that relates to spread. Does scale multiply the result and then the offset applied to the scaled value? Does a spread of (1000, 1000, 1000) result in 0.001 sized steps or does it spread the result out over 1000 The answer is: it depends. It seems water is sufficient for most people most of the time, but the best way to rehydrate depends on who and where you are, and what you're doing.

We think the Eon Concepts storm glass is one of the more visually appealing models on the market. Unlike some other models, it is visually appealing enough to sit on your countertop to accent your other décor rather than being the focal point. A small or large version is available—the large version is about eight and a half inches tall by four and a half wide, and the smaller version five and a half tall by about two and a half inches wide. As you can use System 15 on practically any existing roof membrane, it means you won’t have to replace any roof structures. That’s perfect for commercial properties as it means the business can carry on as usual. How to apply Acrypol System 15: Flowing and flexible, liquid rubber membranes are the painless way to completely waterproof a flat roof that has lots of complex features. Totally eco-friendly and with a long life expectancy, Roofing Superstore has plenty of options to choose from when it comes to rubber for roofs. There’s an all-purpose brush-on Cromar whose RubberCoat is designed for hand application, making it perfect for DIY-ers. Or go for top-of-the-range EcoProof which is well-known for its exceptional adhesion properties, meaning it will fully bond to whatever roof covering you already have. Finally, there are Soudal products that are great for emergency rubber repairs. But, research shows the crystals mainly form in response to temperature changes. The crystals change because solubility and crystal structure depend on both temperature and the rate of temperature change. History of the Storm Glass

How do you know what’s causing the problem?

Either place themixturein a corked test tube or seal it within glass. To seal glass, apply heat to the top of the tube until it softens, and tilt the tube so the glass edges melt together. If you use a cork, wrap it with parafilm or coat it with wax to ensure a good seal. Limit access to your roof unless it’s been designed to take regular footfall. If you need to walk on it, use temporary boards

Cloud formation has a huge implication for not just our local weather patterns, but for our global temperatures,” said Couceiro, who was not involved in the study. Storm glasses fell out of favor late in the 19th Century as mercury barometers became more affordable. These days, they have become little more than a conversation piece, rather than weather predictors, and many may not even know that such a device ever existed. How Does a Storm Glass Work?

The problem: You want to turn your flat roof into a terrace so you need non-slip flooring

The storm glass works, up to a point. The crystals are markedly different in stormy weather (hurricanes, snow) compared with clear, sunny days. As far as predicting the weather goes, the glass indicates the weather is about to change, but that’s about it. Mostly, it reflects current conditions, so I use satellite radar if I really need to know what’s coming. Friends around the world who keep storm glasses have varying degrees of success with them. They are most interesting if kept in windows, garages, or outdoors (where temperature changes). Mostly, a storm glass is a fun science decoration. It’s looking dark and cloudy outside and it really looks like it’s going to rain. So, should you cancel all your outing plans for today or should you take a leap in the dark and proceed anyway? If only you had this storm cloud weather predictor that can tell you if it’s going to rain or not. And now you’re probably wondering why you haven’t already got this convenient and functional weather predicting instrument. System 10 uses a tough, acrylic resin that stops water from penetrating but allows any moisture to escape at the same time. With both undercoats and topcoats available in UV-protecting solar white or minimalist grey, you apply the system in seven simple steps. Fast and easy, it gives a totally seamless finish even around problem areas prone to leaking such as upstands or vents. Acrypol System 10 is suitable for: When you heat a substance, the energy in that kinetic store increases, making them move around faster and further until the bonds between the particles break.