Q:Why is the glass transparent? What is extended is water, ice and so on transparent things Please explain from the principle, simply, you do not ask Glass reflected light and other objects reflect the light is nothing different, Why some objects can be transparent, and some objects are not transparent

Molecules and atoms of the form, the structure dictates! Like coal is the same as black!

Q:What are the brands of architectural glass films on the market today?

In the United States, architectural glass film penetration rate has exceeded 90%. Australia, New Zealand and other countries architectural glass film penetration rate are more than 75%. From the Pentagon, the White House, the Sydney Opera House and many civil buildings ... ... China has over 15 billion square meters of glass maintenance market, and with a large number of new buildings each year, the need to maintain the glass area will be 6% to 10% increase in speed. At the same time, by the impact of global warming, glass film insulation, environmental protection features will be more people recognized, glass film in the field of construction and home decoration will have a very wide range of applications. The growing awareness of energy conservation, but also spawned energy-saving explosion-proof glass foil into the tens of thousands of households! Foil market is a huge trademark machine, and the current glass film or a few people only know the wealth industry. According to the national authority of the statistical agencies estimate that the installation of glass film China's architectural glass film penetration rate is currently less than 10%. The huge demand constitutes at least 500 billion market profit margins. One step ahead is tantamount to digging a huge gold mine! Jazz glass film to the international advanced production technology as the basis, both from the price or quality have a strong market competitiveness, operating jazz film you will enjoy greater profit margins to ensure that you succeed in wealth! Each construction staff can be posted 50-100 square meters a day, profits ranging from 4,000 yuan to 35,000 yuan, if to undertake commercial buildings, banks, hotels, party and government organs, residential buildings, cluster floor, the profits will be more impressive!

Q:Instead of spending thousands of dollars on new windows in certain areas i am going to build my own for sheets of glass and metal/wooden framing. Is there anyone out there who knows of a decent diy window project site or book. I am going to try and make the windows as energy efficient as possible and i would like to know any ways this might be achieved.any help would be greatly appreciated.

Thermo-panes are the real trick and you cant make those yourself.. They must be completely sealed and full of inert gas such as argon, to keep moisture from forming between them. You can build the frames, jambs and mouldings yourself, but order the thermo-panes from a professional glass shop.

Q:Now many people say that architectural glass film can be energy-saving, it is how to save energy in the end? Its energy-saving principles and energy-saving parameters how to quantify?

Coated glass: coated glass is the surface of the glass coated with one or more layers of metal, alloy or metal compounds to change the performance of the glass. According to the different characteristics can be divided into heat reflective glass and low radiation glass. Thermal reflection (sunlight control) glass, usually in the glass surface coated with one or more layers such as chromium, titanium or stainless steel and other metal or its composition of the film, the product was rich in color, visible light with the appropriate transmittance, Infrared has a high reflectivity, the UV has a very low transmittance, therefore, also known as sunlight control glass. Compared with ordinary glass, reducing the shading coefficient, that is, to improve the shading performance, but little change in the heat transfer coefficient. Low-emission (LOW-E) glass, is the surface of the glass plating multi-layer silver, copper or tin and other metals or other compounds composed of thin film, the product has a higher transmittance of visible light, infrared has a high reflectivity, with Good thermal insulation properties, due to poor film strength, are generally made of hollow glass instead of using alone.

Q:Which is the domestic car is anti-UV insulation glass

The front windshield glass above the 170mm or so colored area is anti-ultraviolet light direct sunlight, as the door and the rear windshield are generally steel security glass, anti-ultraviolet glass insulation glass is currently popular, not used to the car glass, To achieve this effect, then buy a car to the film on it.

Q:In Megamind when Titan takes off the building glass shatters, what does that mean scientifically ?

It means that fantasy and reality are not one and the same thing. In a fantasy people can imagine what they want to. So for this fantasy you can picture a shock wave. Titan takes off by providing a very sudden very high force. Which radiates through the building shattering glass. Just like high explosive would. But this is only a background to a plausible fiction.

Q:And do not say the thickness of the grade ~ ~ For example, car class ~ ~ construction level

Flat glass flat glass is not processed by other flat glass products, also known as white glass or clean glass. According to the production method is different, can be divided into ordinary flat glass and float glass. Flat glass is the largest in the building glass, the most used one, mainly for doors and windows, from lighting (visible light transmission than 85% 90%), enclosure, insulation, sound insulation and other effects, but also further processed into other technical glass The original film. Flat glass according to its use can be divided into window glass and decorative glass. According to the national standard "ordinary flat glass" (GB4871-1995) and "float glass" (GB11614-89), the glass according to its thickness can be divided into the following specifications: pull the production of ordinary flat glass: 2mm, 3mm, 4mm, 5mm four categories. Float glass: 3mm, 4mm, 5mm, 6mm, 8mm10mm, 12mm seven categories. The width of the glass produced by the drawing method shall not be greater than 2.5, of which 2,3mm thick glass size shall not be less than 400mm × 300mm, 4,5,6mm thick glass shall not be less than 600mm × 400mm. Float glass size is generally not less than 1000mm × 1200mm, 5,6mm up to 3000mm × 4000mm. In accordance with national standards, flat glass according to its appearance quality classification grading, ordinary flat glass is divided into superior products, first-class goods and second-class three grades. Float glass is divided into three grades: superior grade, first grade and qualified product. At the same time, the curvature of the glass shall not exceed 0.3%.

Q:Alright, so I want to build an under seat sub woofer enclosure for my smaller sports coupe. There's not much room at all under the seats, so I was thinking about going with a Pioneer 8" shallow mount sub, but the box is causing me a bit of a headache. I haven't had a chance to take a measuring tape to it, and doing so would be difficult.My idea is to get a can of the spray foam stuff used to seal homes, to inflate a garbage bag under the seat. After letting it sit and dry for a while, I'll remove the seat, pull the bag out with the exact dimensions of my seat and then play from there. I'll take the bag off of the foam and probably sand it down from there to fit my needs. I'll then use fiber glass to build up the box from the foam mold.Any thoughts on better ways to do this?PS: The car is a 2000 Mercury Cougar incase anyone has actual dimensions.

you can take the seat out and then use a think foil paper and line under the seat then put a thin layer of fiber glass then let it dry and go from there also. * remember when your using the fiberglass your also gonna want to put a layer of bondo to strengthen the box but you do have a good idea also what ever works.

Q:Sound insulation glass how much money a square

According to the level of external noise, using our different sound insulation glass combination program, the general indoor can achieve the highest national quiet standard (0 level noise standard). In a large number of practical installation and application process, different degrees of outdoor noise by our professional staff of the measurement, analysis, judgment, using the most appropriate combination of sound insulation solutions, can reach 40 dB below, and some areas can even reach 30- 33 dB, the villa's basement is generally 28-32 dB.

Q:There is a 100 story high building. We have 2 identical glasses. We would like to know the highest floor from which it is possible to drop a glass and not have it broken on the ground. What is the least number of experimental drops we need in order to determine the answer? (and how so?)I know it is less than 19.

I believe you are basically doing a binary search. I hope that helps enough because as long as you know that algorithm, you can just calculate the max. Edit: sorry, forgot to note you are limited to 2, so I guess you would be in some trouble if you broke both, which could happen with a naive binary search. So, I guess in that way my intuition would say moving up somehow. Let's say 10 at a time. Drop glass from 10th floor - it breaks, now you only have to test floors 1-9 sequentially, that's 10 drops at most - it doesn't, drop from 20th floor - it breaks, test floors 11-19 sequentially, that's 11 drops at most - it doesn't break, drop from 30th, etc.