Every 5 to 7 seconds.
Yes they did have mirrors but they were just polished metal plates. These plates were usually brass.
three times
Check to see if the whine is coming at all times, or only when driving. Typically the whine is from the differential. Fluids should be checked and replaced. If it continues to whine, have it inspected by a mechanic.
You should check , and/or replace batteries in ,your smoke and carbon monoxide detectors/alarms .
Glass mirrors were invented in the 16 century, and King Henry Tudor (Henry VIII) died in 1547 - thus mirrors were probably around in his reign, and certainly those of his Tudor descendants. A link to the history of mirrors is provided below.
About every 5 seconds
silver is responsible for reflecting property of mirror.in old times smooth silver pieces were used as mirrors but they got corroded easily .
Generally Fuel Pump has gone out this has happened multiple times with different cars to me. They should be replaced around 110,000 miles as a general maintenance precaution. If you have fuel check for spark
Divide your answer by 56. The result should be seven.
In a PERFECT System with Perfect Mirrors reflecting 100% of the Energy that strikes it....two parallel mirrors will reflect light striking it at 90 degrees to their surfaces an INFINITE number of times. Of course that System does not exist. Mirrors are NOT 100% Reflective. It is impossible to make two flat objects Perfectly Parallel, and Introducing a Perfectly Perpendicular Light Beam into the System is NOT Possible either.
There is no particular number of times you should clean your horse. It still should be done regularly. You should make sure to check for cuts or other injuries.
Yes they should, when you are driving on a freeway they then to be strait and fast and you tend to get bored. However, they can be pieces of shreded tyre on the road or pieces that have fallen off a load or animals (deer, badgers etc) that you may impact. At speed an impact will do allot of damage and may cause you to involve other cars. You need to be vigilent at all times when driving but especially so on a freeway.