Here - Innovation Aid
Transcription
Here - Innovation Aid
FORTY IDEAS FOR SLUM DEVELOPMENT Renewable Energy 1. Solar Lamps…………………………………………………………………………………….……1 2. Simple hose and pipe system solar heaters……………………………………………………...1 3. Converting cow dung to energy……………………………………………………………………2 4. Solar Chimney……………………………………………………………………………………….3 5. Mechanical powered battery charger……………………………………………………………...4 6. Tin Can + Lid Solar cooker………………………………………………………………………....5 Construction 1. Sustainable AAC blocks…………………………………………………………………………….5 2. Plastic bottles Bricks………………………………………………………………………………...6 3. Ceiling Insulation from recycled Tetra pack………………………………………………………7 4. Table with storage space…………………………………………………………………………...7 5. Stool with storage space……………………………………………………………………………7 6. Transformer park bench…………………………………………………………………………….8 7. Building material out of plastic (Kingston Hot Press)…………………………………………....8 8. Biodegradable house………………………………………………………………………………..9 9. Future Shack…………………………………………………………………………………………9 10. House out of bottles………………………………………………………………………………..10 11. Sunny bare Yurt……………………………………………………………………………………10 12. Metal waste playground…………………………………………………………………………...12 Health Care and Hygiene 1. Mobile clinic…………………………………………………………………………………………13 2. Mosquito solution…………………………………………………………………………………..14 3. Inexpensive mosquito net…………………………………………………………………………15 4. Sanitation Units…………………………………………………………………………………….16 5. Solar water disinfection box………………………………………………………………………17 6. Clean water using light……………………………………………………………………………17 7. Basin Solar stills (distillation)……………………………………………………………………..18 8. Hand wash stations………………………………………………………………………………..19 9. CDs => Sewage water cleaner…………………………………………………………………...20 Household Needs 1. Smokeless cookers………………………………………………………………………………..21 2. Solar lamps…………………………………………………………………………………………..1 3. Solar heaters…………………………………………………………………………………….......1 4. Zeer pot……………………………………………………………………………………………..23 5. Solar chimney………………………………………………………………………………………..3 6. Water filter…………………………………………………………………………………………..24 7. Community resource pooling for quick access to cleaner cooking fuel................................25 8. Tin can solar cooker…………………………………………………………………………………5 9. Water pod heater from oil drum…………………………………………………………………..26 10. Cheap 3D arm Lamp………………………………………………………………………………27 11. Recycling plastic into Jewellery, Baskets and Mats……………………………………………28 12. Recycling plastic bags………………………………………………………………………….....30 13. Bottle cap LED……………………………………………………………………………………..32 14. Electric Cookstove technology……………………………………………………………………32 15. Water Heater……………………………………………………………………………………….33 Travel 1. Big load cycle……………………………………………………………………………………….34 2. Portable safety light………………………………………………………………………………..34 Renewable Energy 1. Solar Lamps 2. Simple hose and pipe system Solar Heater - Running water through some hose or pipe that is exposed to the sun - connecting that to a storage vessel in a thermosiphon arrangement. - A thermosiphon causes heated water to displace cooler water above it and as long as the heated water can continue upward, it will do so. - The pipe/hose cannot have air present as this will halt the movement. - Needs to be a minimum of a ~4ft (1.2m) rise from hose to storage vessel. - A loop can set up to circulate water from vessel to hose and back, which continues the heating process. Cool water is drawn from the bottom, circulated through the hose, and returns near the top of the vessel. - As long as the siphon is not broken (air present), water can be dipped or drained out of the vessel for use. 1 3. Converting Cow dung to Energy 2 4. Solar Chimney Improves air quality Maintains temperature If family cooks inside the house then reduces smoke Subsequently improves health and living conditions of people. 3 5. Mechanical powered battery charger The proposed design is constructed from an old bicycle rim that is connected to a DC motor from an old printer via a belt that comes from the same printer. When the rim is manually spun it will cause the motor to produce an electric current which is needed to charge a battery. Possible Variation: Water wheel instead of rim Construction: http://www.appropedia.org/How_to_Build_a_Mechanically_Powered_Battery_Ch arger_for_LED_Lighting 4 6. Tin Can + Lid Solar cooker http://www.appropedia.org/Parabolic_basket_and_tin_can_solar_cooker Sunlight is used to pasteurize water and alternative for fossil fuels. But as in our case in the slums sunlight is not so readily available everywhere also this product seems to be bulky. Also they have also listed some changes that they would like to do in their product which we can work upon to bring it in our system. Construction 1. Sustainable AAC blocks Superior insulation characteristics fire safety lightweight susceptibility to pest strength environmental impact • Autoclaved Aerated Concrete combines insulation and structural capability in one material for walls, floors, and roofs. Its light weight/cellular properties make it easy to cut, shave, and shape, accept nails and screws readily, and allow it to be routed to create chases for electrical conduits and small-diameter plumbing runs. This gives it design and construction flexibility, and the ability to make easy adjustments in the field. • Durability and dimensional stability. A cement-based material, AAC resists water, rot, mold, mildew, and insects. Units are precisely shaped and conform to tight tolerances. • Fire resistance is excellent, with eight inch thick AAC achieving a four-hour rating (actual performance exceeds that and meets test requirements for up to eight hours). And because it is noncombustible, it will not burn or give off toxic fumes. • The light weight means that R-values for AAC are comparable to conventional frame walls, but they have higher thermal mass, provide air tightness, and as just noted, are not combustible. That light weight also gives a high sound reduction for privacy, both from outside noises and from other rooms when used as interior partition walls. 5 2. Plastic bottles Bricks http://www.bottlebrick.com/ 6 3. Ceiling Insulation from recycled Tetra pack http://www.appropedia.org/Ceiling_insulation_out_of_recycled_Tetra_pack_at_Pedregal Reusing tetrapacks and also insulating the roofs using cheap materials. 4. Table with storage space A storage space is situated below the centre of the worktop. This is made practical by a closure composed of a slatted structure which can be rolled up. The storage space utilises the space not used as knee-room. 5. Stool with storage space A seat from 3 equal panels, a bottom and a hinged lid, locking a storage area. Provisions have been made that stools can be stacked one upon the other. The panels are interconnected with hinges and are folded together at the time of selling and connected permanently. 7 6. Transformer park bench 7. Building material out of plastic (Kingston Hot Press) Recycles plastic into tiles! http://www.appropedia.org/Kingston_Hot_Press:_Process_Improvements 8 8. Biodegradable house A biodegradable triple-wall corrugated house > Snaps together in 15 minutes and lasts 18 months. > To accomplish durability, the shelter has a concentric “ring” structure. > No tools are required for setup and easy to follow, illustrated instructions make it universally usable. > A white fire retardant and waterproof coating for the shelters’ interior and exterior walls and roof was created. > Inhabitant safety is enforced with interior and exterior locks. > Houses have withstood winds up to 80 mph, and a tarp kit can be added for extra weatherproofing and wind resistance. > The original unit measured six square meters, a 20-square-meter unit was introduced in 2006. > Work is currently being done on a system utilizing panels and a patented extrusion design that allows units to link together to form larger or smaller structures as needed. 9. Future Shack http://www.seangodsell.com/future-shack 9 10. House out of bottles Plastic and glass bottles have been used as the basic raw material for the construction of this school. Juice containers are used as reflecting surfaces to contribute to the entry of light. The classrooms are fully sunlit. 11. Sunny bare Yurt The roof of this can be worked upon. http://www.appropedia.org/Sunny_Brae_Yurt Get some scrap plywood. Cut 6 triangles, use angled cuts if possible. The triangles have to be isosceles. 1. Do the same with clear vinyl window material. 2. Drill and cut out the interior to create window frames. 10 Nail them together into a hexagonal pyramid. Guerrilla tape can be used for water proofing. Thus the hexagonal skylight is ready 11 12. Metal waste playground guixotde8.com/ has done this all over the world. Here are some design examples 12 Health Care and Hygiene 1. Mobile clinic A mobile HIV clinic was developed for Africa as a part of a competition organized by 'Architecture for Humanity' Their concept is a basic box structure in which other box like units can be plugged in and shifted around as required. Not sure if we need a mobile clinic but this system of creating a mobile structure might come in use. 13 2. Mosquito solution Here are some other inexpensive techniques for controlling mosquitos which you may not have heard before: Repurpose your spent coffee grounds by letting them dry and age for about a month in an open container, then sprinkle them in puddles and other standing water to kill mosquito larva. (NOTE: Do not use in fish ponds or elsewhere when other aquatic life is present.) Leftover brewed coffee can also be applied as a spray to weeds and outdoor surfaces, since mosquitos hate its aroma. Marigolds planted in the garden or yard not only look pretty and are easy to grow, but their scent deters a wide range of outdoor pests, including mosquitos. Hang strips of fabric softener sheets adjacent to outdoor lights, but not in direct contact with the bulb or fixture; the heat from the light will slowly diffuse chemicals in the sheets that repel mosquitos and other nighttime flying insects. When barbequing outdoors, throw a handful of sage, rosemary, or – once again – spent coffee ground (dry) on the fire to keep mosquitos away. Lemongrass is an attractive annual to plant in the yard or in a container during the summer, and the stalks can be used in cooking as well as crushed and rubbed on the skin to chase away mosquitos. You can also infuse crushed lemongrass stalks in rubbing alcohol to make a skin-safe tincture spray that mosquitos hate. Did you know that a single bat can eat up to 1,000 mosquitos in an hour if he’s really hungry? Invite more bats into your neighborhood by building a bat house. It’s a perfect way to use up scrap lumber. And finally, crush a dozen cloves of garlic and simmer them in two cups of water on the stove for 30 minutes. The resulting tonic can safely be safely sprayed on outdoor surfaces, including picnic tables, as well as on the skin in order to keep mosquitos at bay. (It’s also great for warding off vampires and other garlic-haters.) http://blog.aarp.org/2012/08/06/cheap-easy-tips-for-keeping-mosquitos-away/ Use cow poop to stop msquitos http://www.cowpoopladies.com/CowPoopLadies/KAProducts.html 14 1. Catnip—You can drive cats wild and make mosquitoes run in terror, according to research at Iowa State University which found that the essential oil found in the herb catnip is about 10 times more effective than DEET in repelling mosquitoes. 2. Citronella—the old standby. Use only pure essential oil of citronella—not fragrance oil. Oils purchased in bulk for burning are not adequate for applying topically to your skin. For your skin it is best to get a high quality citronella essential oil from a natural food store. While it’s not as effective as catnip, it’s still a good option. 3. Garlic—eat lots of fresh garlic—mosquitoes can’t stand the stuff. 4. Lavender essential oil smells great and is a commonly used and effective mosquito repellent. It’s best diluted in a carrier oil like apricot kernel, sweet almond, or coconut oil. If you can find organic soy oil, it is also a good option since it also keeps mosquitoes at bay. 5. Neem oil or neem seed oil: According to a study by the US National Research Council neem oil is more effective than DEET. The results were confirmed by scientists at the Malaria Institute in India and in research cited in the Journal of the American Mosquito Control Association. Neem is a plant that grows in India. 6. Organic soy oil—Research cited in The New England Journal of Medicine found that repellents made of soybean oil are just as effective as DEET-containing repellents. Soy oil is inexpensive and easy to find, making it an excellent choice. Plus, it is an excellent body moisturizer. As an aside, research shows that an ingredient in soy can slow the growth of body hair when applied topically. Choose organic soy oil if possible since many soy crops are now genetically-modified. 7. Lotus (Nelumbo nucifera)—New research published in the Asian Pacific Journal of Tropical Medicine shows that lotus is an effective mosquito repellent and also helps kill mosquito larvae. Since lotus grows in water it is a good option as a natural repellent in backyard ponds and water features rather than something that is applied topically. 8. Black pepper (Piper nigrum)—New research from the same study shows that an extract (the study used an alcohol extract but black pepper essential oil would probably work too) of black pepper is effective in repelling mosquitoes. I mix about 30 drops of the essential oils of catnip, citronella, lavender, neem, and black pepper (total, so about 6 drops of each essential oil) into about 30 mL of an unscented and natural oil or moisturizer, which I keep handy in a jar. I rub a bit onto my skin prior to heading outdoors. You can also mix 30 drops of these essential oils into organic soy oil for extra protection. Always do a 24-hour skin test to be sure you don’t have sensitivities to any of the oils. http://www.ecorazzi.com/2013/06/03/8-natural-ways-to-keep-mosquitoes-far-far-away/ 3. Inexpensive mosquito net The following materials are needed to make a mosquito net capable of covering a doublesize bed, and rising 4 feet off the ground: - Cotton/Polyester/Mesh Sheet (174” x 195” – 449.1cm x 495.3cm – 26 yards) NOTE: The sheet does not have to come as one piece. Please refer to the Construction section on how to properly sew several pieces of material together -Needle and Thread (If sheet is not one piece) -1 x 1 Wood (Total: 38’ – 12.5m, cut into: 4 x 48”, 2 x 55”, 2 x 75”) - 8 x 2” spiralled nails -4 x 1” nails -4 x bottlecaps 15 In order to block an Anopheles-genus mosquito from passing through the bed net, fabric or mesh with a grid size of less than 1.2mm x 1.2mm must be used. The bed net must be able to completely cover the bed and must not touch the sleeper, since mosquitoes can still bite the sleeper through thin fabrics or meshing if it comes in contact with their skin [4]. The net must also completely encapsulate the bed, leaving no gaps at the seams or where the fabric meets the floor. Ideally, the sleeper should be allowed to sit up in bed as well as sleep while being protected by the bed net. This means the net must be tall enough to allow the occupant to sit up without brushing their head on the net. Finally, the proposed design is ground supported (instead of typical designs that hang the net from the ceiling) because it is difficult to determine how the integrity of a roof will be affected by the net unless it is hung on a ceiling joist. The ground supported design also minimizes the amount of fabric required by over 25%; the most expensive component of a mosquito net. 4. Sanitation Units http://www.appropedia.org/Bathroom_Toilet_Unit This is about the construction of Bathroom Toilet units affordably. It aims at improving sanitation in rural settings. This method is meant to be used in a communal project where inhabitants of a village can be motivated to build a private bathroom for every family around. To achieve this each family works on its own bathroom facility concurrently while sharing experience and guidance. A special construction method is used to permit this. But the method that they have shown might not prove fully helpful as first you have to make a wooden mould for concrete slabs and then make a concrete one in your individual houses for which people might not give their time and money. 16 5. Solar water disinfection box The box presented should be used by a family of six people and provides 2 liters of clean drinking water per day. The process requires users to fill untreated water in a solar bag with a safe “one way valve” and let it under sun exposure for six hours. The water can be then passed to an inner container to be stored and tapped out. This solution provides a transitional solution for families temporarily settled in refugee camps. Afterwards the complete box can be converted into a fuel briquette for solar cookers. 6. Clean water using light Problem: clean water-specifically addressing removal of salts and nitrates Solution: The team “Tripure” imagined a system for rainwater collection and distillation. The system is composed by a solar and rainwater collector, a distillation unit, an extra heating source and a water storage tank. Using a solar cooker principle of a parabola for sun and rainwater collection, according to the angle it is positioned. Several ergonomic aspects were also considered when opting for a shape that allows an easy pouring of water and facilitates maintenance and cleaning. 17 7. Basin Solar stills (distillation) - Salty or dirty water in an airtight container is heated by the sun, causing it to evaporate. - The water then condenses on the clear container covering, which is slant to allow the fresh water to drain into a collection unit. - The pure water evaporates and the impurities do not, distilling the water and making it safe to drink. - Not sure the bacteria are removed and it is safe to drink but it can definitely be used for other purposes. - Construction details: http://www.appropedia.org/Improving_Basin_Solar_Stills 18 8. Hand wash stations The watering can is suspended, with a cord attached to the nozzle. The cord is attached to one end of a stick (perhaps 50 cm or 20 inches long) on the ground, adjusted so that one end of the stick lies on the ground, and the other is raised slightly. The user steps on the stick, dropping the nozzle and enabling them to wash without touching anything with their hands. 19 9. CDs => Sewage water cleaner http://www.osa.org/en-us/about_osa/newsroom/newsreleases/2013/spinning-cds-to-cleansewage-water/ The National Taiwan University, National Applied Research Laboratories in Taiwan, and the Research Center for Applied Sciences in Taiwan used the large surface area of optical disks as a platform to grow tiny, upright zinc oxide nanorods about a thousandth the width of a human hair. Zinc oxide is an inexpensive semiconductor that can function as a photocatalyst, breaking apart organic molecules like the pollutants in sewage when illuminated with UV light. 10. Nano Nutrients for environment remediation Nualgi Lakes are useful to clean up polluted water bodies All micronutrients required for plant growth are loaded on nano silica and are available as a stable liquid dispersion Its addition to water -> boosts growth of diatom algae -> absorbs CO2, produces food & O2 -> growth of zooplankton -> filters and feeds on water and cleans it -> zooplankton consumed by fish Technology could be applied to the Mula Mutha river Drawback: If used in the sewage system in our area of working, no fish will be available which means the entire food chain will fall apart. Contact: [email protected] # +91-80-26591524 20 Household 1. Smokeless cookers We found various cooking device from solar to improved dung burning. Here is a small list of the ones we have discovered. 21 2. Solar lamps 3. Solar heaters 22 4. Zeer pot refrigeration (design) The Zeer pot is a refrigeration device invented in Africa which operates by the principle of evaporative cooling which can preserve vegetables for 20 days. 5. Solar chimney 6. Water filter Benefits of the filter: -The filter is totally safe and produces water that is safe for human consumption. 23 -It is able to withstand and continue operating in adverse weather conditions. -Every person will be able to operate the Filter with little to no training, and its upkeep is simple to explain and carry out. -The Filter is inexpensive, both to construct and to maintain. Making of the filter: It is a series of three linked water filters with progressively finer and finer filters. Each filter is of a standard 10' size and housed within a plastic casing, between which water is pumped through lengths of 3/4" PVC pipe. The three filters are: One Polyspun Plastic Sediment Filter Filters out large particulate matter, BOD; anything that might clog the later filters 20 micron One Carbon-Impregnated Filter Filters medium to small particulate matter; anything not caught by the first filter 5 micron One Silver-Impregnated Ceramic Filter Filters out tiny particulate matter, as well as most pathogens and heavy metals ~.9 micron The exterior of the Filter Commander 9000 consists of three 10" filter housings (with 3/4" threading) connected by 6" lengths of PVC pipes, with an input and output nozzle installed on each end. One end is connected to the collected rainwater supply, the other is open for any available container or pipe for collecting the filtered water. Each filter is held firmly in place by brackets built into the lid and base of each filter housing. 24 7. Community resource pooling for access to cleaner cooking fuel use traditional fuels such as firewood, chips, dung cake, and other locally available biomass causing smoke i.e. indoor air pollution. women and children affected most. causing lung cancer, ischemic heart disease and tuberculosis (TB) in women, blindness, cataracts, asthma, other adverse pregnancy outcomes such as low birth weight, prematurity, and early infant death. biomass - time consuming collection process and related hardships. Factors that deter the shift towards cleaner cooking fuels such as LPG among the urban poor: Non-affordability of the initial cost of buying a LPG connection is a major constraining factor. awareness is also a major factor. Non-affordability of fuel-efficient stoves and necessary accessories. Solutions (The LPG Pilot) combines findings from a larger research project to design a solution for a private problem with greater implications for a common good. empowering the people to help themselves by using their own social resources. From the pooled resources, each month, some of the members were able to obtain an LPG connection.community-based resource pooling can overcome the affordability problem of urban poor for transition towards cleaner and convenient cooking fuels such as LPG. improved standard of living in terms of cleaner indoor air and thereby to better health conditions. Helps women in engaging in other income generating activities using the time that they usually would have spent for firewood collection or cooking. Better than subsidies as they use their own social resources. 25 8. Tin can solar cooker 9. Water pod heater from oil drum http://www.appropedia.org/WaterPod_Rocket_Stove Main objective was to build an efficient cooking stove, using minimal materials that will optimize biomass to create a stove which can boil water. 26 10. Cheap 3D arm Lamp Lamp with a pivotable folding arm This new type of adjustable stand has a rope for keeping a parallelogram construction in a stable position. Also the new stand has a counterpoise or counterweight that can be pushed along and turned around the standard and which is connected via a rope to the protruding part of the longest arm. The movement of the protruding part of the longest arm is not limited by a stop . 27 11. Recycling plastic to make jewellery, mats and baskets 28 29 12. Recycling plastic bags 1. 2. 3. 4. Plastic is sorted from other materials Each type of plastic is sorted from other types It is shaken and rinsed so any particles like dirt or bits of trash come free It is crushed into little flakes and put into a flotation tank, to further sort the plastic by density. 5. Once all the flakes are dried off, the flakes are melted into pellets. 6. These pellets are sent back to the manufacturer to start the process over. Recycled PET and HDPE is increasingly used in primary packaging by retailers and branded manufacturers for bottles and trays. Construction Damp proof membrane, drainage pipes, ducting and flooring. We could consider making something to lay on the roads where the water from washing runs and collects due to pot holes. It could be something that drains and directs water into the drain. Landscaping Walkways, jetties, pontoons, bridges, fences and signs are increasingly being made from recycled plastic. Durability, low maintenance, vandal resistance, and its resistance to rot are all key reasons for plastic being used. Textile fibre / clothing Polyester fleece clothing and polyester filling for duvets, coats etc is frequently made from recycled PET bottles (e. g. soft drink and water bottles). 30 Polyester fibre is the largest single market for recycled PET bottles worldwide. Street furniture Street furniture, seating, bins, street signs and planters are frequently made from plastic. They are cost competitive and resistant to vandalism. Street lights could be made as the currently used streetlights are prone to vandalism. Bin liners/ refuse sacks Plastic film from sources such as pallet wrap, carrier bags, and agricultural film are made into new fill. 1. Diversify energy and fuel sources Our target community already has 24 hour power supply, hence, providing electricity through an off-grid network is not applicable. Relevant in our context is: Improving cooking technologies (the chulhas they use to boil water) Two ways of doing this are: - Substitute with LPG (already use but using for boiling water proves to be too expensive) - Different biomass fuel sources Agricultural plant waste and animal waste is not available to us. If we can identify the category of biodegradable waste most abundant, a technique to convert it into fuel can be developed. Existing techniques are: - Gasified agricultural plant waste (rice husks) - Methane gas from animal waste - Biomass briquettes and biochar (require compressing machines/kilns) - Biomass can be charred into charcoal - Processing into cooking fuels 31 13. Bottle cap LED - Utilizes a recycled bottle and cap (with a cap diameter equal to or greater than that of a 2L pop bottle) - A portable, durable platform for a high efficiency LED lighting system that is charged using a small solar panel. - The bottle cap will house the lighting equipment and act as the bulb ballast and the pop bottle will act as the diffuser and stand. - Bottle Cap LED Fixture Design can be mass produced using injection molding and labor in China or can be developed utilizing the most recycled components as possible. - Initial expense of mass manufacturing is there but its efficiency is greater. Construction details: http://www.appropedia.org/Bottle_Cap_LED_Lighting 14. Electric Cookstove technology Organization:TERI Source:The Energy and Resources Institute Year:2013 TERI felt the need to utilize the forced draft (using fan to inject air into the combustion chamber) micro--‐gasification technology to develop an improved biomass cookstove. After two years of intensive research, field--‐testing and customization TERI has developed a single port metal stove that can cater to cooking requirements of a family of up to 7 members. Fuel wood, agriculture residue and cattle dung cake can be used as fuel for this 32 stove. The power charger has dual charging mode (AC/ grid power supply and solar power supply) to cater to households in unelectrified areas. Outcome/Benefits: Indian Institute of Technology, Delhi (IITD) has tested the stove and certified that it has passed all applicable government performance benchmarks. IITD has reported that the stove has combustion efficiency of 98.8% thereby reducing particulate matter emission (per unit of energy delivered) and carbon monoxide by 72% and 80% respectively comparison to a traditional mud stove. As it has high (~37%) thermal efficiency, the stove also reduces fuel consumption by 54% vis-a-vis mud stove that leads to lesser drudgery for women/ children in terms of fuel collection and processing. For users, there Is also additional benefit of faster cooking and less blackening of vessels. 15. Water Heater The energy platform will have about three big thermoelectric firewood stoves, each of them connected to a tank of water through a set of pipes. These will electricity which can then be used to charge batteries to power cell phones, lights, etc.. 33 Travel 1. Big load cycle Long lasting, affordable, utilitarian bike with easily replaceable parts capable of carrying several people (utilized as taxis) or goods including bulky loads like bread. Decreases the risk of safety and health issues by allowing cargo to be distributed horizontally across the back tire versus being stacked so high that the rider’s visual field is restricted and the weight distribution is unstable. Lower the incentive for motorized transportation and the accompanying pollution and severe accidents 2. Portable safety light Problem: women and kids, are more vulnerable in the dark and are prone to violent attacks. Services can be inaccessible at night, there may be lack of suitable lighting and areas can be isolated. Solution: The LED lamp is attached to a lanyard to be worn around the neck or wrist. It is recharged by a dynamo power supply, and includes a radio for convenience and a panic alarm for protection. It’s coated in florescent material to make it easy to find, even in the dark, and its magnetic base makes it easy 34