Wood exerts on many people a fascinating effect. Nevertheless, in Germany has the idea impressed that wood is always in danger of being destroyed by fungi or bacteria. Not for nothing is driving many homeowners in the construction markets, to buy chemical preservatives. After the wood preservative scandals in the seventies and eighties, some chemicals may however only be used outdoors. Continue reading
SPL means sound pressure level. In the following article you will read about basics of SPL-measurement. Noise is caused by vibrations of a sound source, such as cords or the loudspeaker diaphragm, and requires for its propagation, a medium, such as air, water or solid bodies. The vibrations of the noise source are transmitted to the medium. These vibrations and pressure fluctuations in the air can perceive our ears as sound. The fullness of what a person can hear is primarily determined by the volume and pitch. Continue reading
Toxic flame retardant chemicals are saturated in the foam inside our furniture. These chemicals are linked to serious health effects and are worthless in preventing furniture fires. We need better regulation of these chemicals to address this problem. That’s why she’s sitting on the floor.
Published on Feb 7, 2013: http://www.youtube.com/watch?feature=player_embedded&v=mvBkVfjcGpc
Solvents are known, used in primers, adhesives, paints and coatings. Depending on the composition they emit gases of different lengths. Volatile solvents have an irritating habit that they stink and can irritate the mucous membranes. In conventional coatings is between 50% and 70% of solvent are present. Meanwhile, the industry found it in search of a less obvious solvents and is relying increasingly on glycol. Continue reading
The BioInitiative Working Group concluded in 2007 that existing public safety limits for electro-magnetic-fields (EMF) were inadequate to protect public health, and agreed that new, biologically-based public safety limits were needed five years ago. The BioInitiative Report was been prepared by more than a dozen world-recognized experts in science and public health policy; and outside reviewers also contributed valuable content and perspective.
Triggered by the energy transition in 2011 power to be transported from the windy areas of the North Sea to the South of Germany. As a transmission technique is the so-called high-voltage direct current electric power, abbreviated HVDC provided. The poles should be like a hundred meters high and have a voltage of up to 800 kilovolts (kV). So far, the current transmission in Germany is done by alternating current with a maximum voltage of 380 kV.
Combined heat and power (CHP) is used to generate electricity and provide heat as a waste product. An energy efficiency of over 90% is predicted by the vendor. The electricity-generating engine is fueled primarily by gas. The issue: larger biogas-plants are mostly in massive buildings at a distance of more than 500 meters to the nearest residential area. Smaller plants move ever closer to the vulnerable housing and are housed in part only thirty meters away. Micro-CHP will be even in the basement of homes, schools, hotels and commercial facilities.
Tens of thousands of households in Europe want to give him any more, others regard it with skepticism and distrust. Stoves with induction hobs are on the rise. Technology enthusiasts will see the benefits in the rapid heating of food and in a precise allocation of energy without wastage. The burning of over boiled around the stove is eliminated because only the area of the pan is heated. So, no more scrubbing and mopping!
If a conservatory belongs to property, the tenant should consider the quality of this extension. Otherwise there is the danger that might at a later mold colonization the landlord cause an incorrect user behavior in the field. Depending on whether it is a hot or cold conservatory, the type of use in the lease is to be regulated.
A case from practice shows, what problems could occur, when a family moves into a not yet sufficiently dry house. The property was given free by the developer after a construction period of six months. Floor coverings were laid and baseboards attached. Furniture and moving box stood in the rooms. A few weeks after moving in, the residents discovered black spots on the walls and partially moldy furniture.