Whats the Best Food to Eat Before a Test

Whats the Best Food to Eat Before a Test Proper nutrition is important, and doubly so on important days like when you take a test. Keeping up your energy during the exam is crucial to your success. Ever had one of those times when youre staring at the sheet and are just drawing a blank, even though you know for sure youve studied this? It might be because you didnt pay proper attention to what you ate, and it resulted in your blood sugar flatlining at the worst moment. Heres a little guide on how to avoid it happening again. Eat Light the Night Before If youre cramming the night before a test (like any proper student would), it might be hard not to get pizza as a way of rewarding yourself. You should consider putting off that reward until you actually write the test, though. Its best to wake up hungry and not with that pregnant feeling everyone gets when eating right before going to bed. Drink Water First thing you should do for energy is drink water. Americans, as a whole, dont drink enough liquids, if you discount for sugary drinks. A glass of cold water on an empty stomach is a great way to start the day and boost your metabolism – which means youll have more energy throughout the day. Eat Your Vitamins Starting your day right means getting all the vitamins your body is going to need throughout the day. Consider, at the least, fish oil and a vitamin B supplement. Fish oil is great for energy boosting, as well as increasing metabolism and clearing up skin, and without sufficient B12, your body is not going to have proper energy reserves, and thats just two of them. Getting a blood test from your doctor will tell you better what daily supplements you should be taking. Caffeine and Energy Drinks Unless youre a total, complete addict, youll want to go without coffee and especially energy drinks. Drinking them gives an energy boost, but the crash or comedown is not worth it, especially if it happens while youre taking your test. If you absolutely cannot start the day without a beverage to bolster your energy, try green tea. It has lower amounts of caffeine, but does have anti-oxidants that coffee lacks. Eat Breakfast The most important meal of the day. If youre one of those people who doesnt have their first meal until lunchtime, you should think about having a proper breakfast. This will provide you with the energy boost you get from coffee, and sustain you until you have lunch. Since breakfast is the most vital meal of the day, you should be all that choosier with what you eat. Try and avoid sugary cereals. Yes, theyre pretty much the best, and you might say, why even wake up if I cant have my sugar fix right away? The same reason as coffee: sugar, as well as all carbs, gets you going fast, and you crash just as hard. Its the thing that metabolizes the fastest, so it wont sustain you for very long, and, as has been said above, were trying to avoid that crash. Instead of Lucky Charms, try something thats high in fat and protein. Eggs with hummus, for instance. Some sort of lean meat, like grass-fed beef or salmon is also a great way to start the day. Try it with some avocado for those healthy omega acids, and eat it on an English muffin to avoid being completely boring with your food choices. If youre a vegan, try mixing quinoa or chickpeas with some spinach or kale, add some nuts, and dress with vinegar for a morning salad. Whatever youre eating on exam day, be conscious of how long its going to sustain you for. You know your body best, and if you know a Red Bull in the morning and a Red Bull before the test is going to get you through it, then, by all means, indulge. Keep in mind, though, youre not going to be 20 forever, and at some point youre going to have to think about how healthy the choices youre making are. Until then, have fun.

A Guide to Composite Materials in Boats

A Guide to Composite Materials in Boats Composite materials are broadly defined as those in which a binder is reinforced with a strengthening material. In modern terms, the binder is usually a resin, and the reinforcing material consists of glass strands (fiberglass), carbon fibers or aramid fibers. However, there are other composites too, such as ferrocement and wood resins, which are still used in boatbuilding. Composites offer the advantages of a higher strength-to-weight ratio than traditional wood or steel methods, and they require lower skill levels to produce an acceptable hull finish on a semi-industrial scale. History of Composites in Boats Ferrocement Probably the earliest use of composites for boats was ferrocement. This material was extensively used in the first half of the twentieth century for building low-cost, low-tech barges. Later in the century, it became popular not only for one-off home projects but also for production boatbuilders. A steel frame made of reinforcing rod (known as an armature) forms the hull shape and is covered with chicken wire. It is then plastered with cement and cured. Although a cheap and simple composite, armature corrosion is a common problem in the chemically aggressive marine environment. There are still many thousands of ferro boats in use today, however – the material has enabled many people to realize their dreams. GRP During the Second World War, just after polyester resins were developed, glass fibers became available following the accidental discovery of a production process using blown air on a stream of molten glass. Soon, glass-reinforced plastic became mainstream and GRP boats started to become available in the early 1950s. Wood/Adhesive Composites Wartime pressures also led to the development of cold-molded and hot-molded boatbuilding techniques. These approaches entailed laying thin veneers of wood over a frame and saturating each layer with a glue. High-performance urea-based adhesives developed for aircraft manufacturers were widely used for the new technique of molding boat hulls – typically for PT boats. Some adhesives required baking in an oven to cure and hot-molded hulls were developed, though there were size limitations governed by access to industrial ovens. Modern Composites in Boats Since the 1950s, polyester and vinylester resins have improved steadily and GRP has become the most prevalent composite used in boatbuilding. It is used in shipbuilding too, typically for minesweepers that need non-magnetic hulls. Osmotic problems from which early-generation boats suffered are now a thing of the past with modern epoxy compounds. In the 21st century, volume GRP boat production follows a full industrial production process. Wood/epoxy molding techniques are still in use today, typically for rowing skiffs. Other wood/adhesive composites have evolved since the introduction of high-performance epoxy resins. Strip planking  is one such popular technique for home boat construction: Strips of wood (typically cedar) are laid longitudinally over frames and coated with epoxy. This simple construction offers a cheap and strong build with a fair finish easily achievable by an amateur. At the leading edge of boat building, aramid fiber reinforcing strengthens key areas of sailboats, such as the bows and keel sections. Aramid fiber also provides improved shock absorption. Carbon fiber masts are increasingly common, as they offer major performance and vessel-stability benefits. Sailboats also use composites in their sail construction, with carbon-fiber or glass-fiber tape offering a flexible but dimensionally stable matrix to which synthetic sailcloth is laminated. Carbon fiber has other marine uses too – for example for high-strength interior moldings and furniture on super-yachts. The Future of Composites in Boatbuilding The costs of carbon fiber fall as production volumes increase  so the availability of sheet carbon fiber (and other profiles) is likely to become more prevalent in boat  production. Materials science and composite technology are advancing rapidly, and new composites include carbon nanotube and epoxy mixtures. Recently, a small naval vessel with a hull built using carbon nanotubes was delivered as a concept project. Lightness, strength, durability, and ease of production mean that composites will play an increasing part in boat construction. Despite all the new composites, Fiber-reinforced polymer composites are here to stay for very many years, though it will surely be in partnership with other exotic composites.