answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: Why are very old homes glass is often thicker at the bottom of windowpanes?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

List of a substances that are useful because of their viscosity?

Oil and Grease - Oil for lubrication when its really hot inside your engine. Grease for other lubrication when its cold outside your engine. Adhesives, Silicone Caulks, inhibitors for making wet mount slides for microscopes, Types of glass are also considered to be a highly viscous liquid, as very old windows in 18th century homes have windows whose glass panes are considerable thicker at the bottom than at the top.


How was glass discovered?

Probably when some prehistoric man first found a fulgurite created by a lightning strike on some beach and decided in a flash of genius that it was useful and might possibly be replicated.For thousands of years glass was thought of as something to look at. It was valued for decoration and for making precious objects. Glass really became useful when it was thought of as something to look through. No one really knows when or where the secret of making glass was first learned, though we know it has been used since very early days. The chief ingredients for making glass are sand, soda ash, or potash and lime, melted together at a high temperature. Since these materials are found in abundance in many parts of the world, the secret of glass making could have been discovered in many countries. According to one story, the ancient Phoenicians deserve the credit for this discovery. A crew of a ship landed at the mouth of a river in Syria. When they were ready to cook their dinner, they could find no stones on which to support their kettle. So they used lumps of niter (a sodium com pound) from the ship's cargo. The heat of the fire melted the niter, which mixed with the surrounding sand and flowed out as a stream of liquid glass! This story may or may not be true, but Syria was one of the original homes of glass making. And ancient Phoenician traders sold glassware all through the Mediterranean countries. Egypt was another country in which glass making was known at an early time. Glass beads and charms have been found in tombs which date back as far as 7000 B. C. , but these glass objects may have come from Syria. We know that about 1500 B. C. the Egyptians were making their own glass. The Egyptians mixed crushed quartz pebbles with the sand to change the color of the glass. They learned, too, that by adding cobalt, copper, or manganese to the mixture, they could produce glass with rich blue, green, or purple color. After 1200 B. C. the Egyptians learned to press glass into molds. But the blowpipe for blowing glass did not come into use until shortly before the beginning of the Christian Era. It was a Phoenician invention. The Romans were great glass makers, and even used glass in thin panes as a coating for walls. By the time of the Christian Era, glass was already being used for windowpanes!


What are precautionary measures against flood?

having a house on stilts, not building homes near to water or flood areas, not having glass windows, and having a community safety center that you can go to in the event of a flood as well as building dams and or levees


How were homes like before the ice age?

there wernt any homes before the ice age dummy!


How many homes can a gigawatt power and for how long?

About a million homes.

Related questions

What services are included in the occupational category of glass and glazing work?

installing plate glass in storefronts and other commercial buildings, cutting and installing windowpanes for homes, and tinting windows.


What's the difference between auto glass and window pane glass?

Auto glass is thicker and more resitant to breaking. Whereas window pane glass is thinner and much easier to break. While both window pane glass and auto glass come in a variety of styles it is common practice for the same type of glass to be used on homes whereas autos typically have a difference type of glass for the front windsheild than the rest of the vehicle.


Did pioneer homes have glass windows?

Many of the old homes did not have glass in the windows and used shutters instead when they needed protection from the elements.


What is a thick insulation used in walls and roofs of homes?

Fiber glass.


List of a substances that are useful because of their viscosity?

Oil and Grease - Oil for lubrication when its really hot inside your engine. Grease for other lubrication when its cold outside your engine. Adhesives, Silicone Caulks, inhibitors for making wet mount slides for microscopes, Types of glass are also considered to be a highly viscous liquid, as very old windows in 18th century homes have windows whose glass panes are considerable thicker at the bottom than at the top.


What are the release dates for Beautiful Homes and Great Estates - 2004 Glass Pavilion 10-15?

Beautiful Homes and Great Estates - 2004 Glass Pavilion 10-15 was released on: USA: 20 February 2012


What is a starfishes habitat like?

they live in the bottom of the sea and their homes are in holes.


What actors and actresses appeared in Homes of Paris - 2002?

The cast of Homes of Paris - 2002 includes: Vincent Darre as Guest Nancy Glass as Herself - Host


What actors and actresses appeared in Homes of Madrid - 2002?

The cast of Homes of Madrid - 2002 includes: Nancy Glass as Herself - Host Pasqua Ortega as himself


What did the Paiute Indian's homes look like?

they had grass on the top and wood logs on the bottom


How do otters construct their homes?

i do believe they build there homes with sticks mud and other things that they can find around their water area. Otters have a sense that if the winter is very harsh they will build there home thicker and if ti is going to be a easy winter they will build it light.


How do you visit homes on Petpet Park?

At the bottom left of the screen there is a house click on it and it will take you to your home