Crystals are beautiful, and that's the main reason why they have been prized for thousands of years. The recorded history of crystals goes back to Ancient Sumerians. In that civilization, crystals were used in magic formulas. Some stones were highly prized in ancient Egypt. They included clear quartz, emerald, carnelian, turquoise, and lapis lazuli.
The ancient Egyptians used these stones in their jewellery and believed that these majestic stones possessed healing properties. To purge evil spirits and combat night terrors, they used chrysolite, which is now known as topaz. Lapis lazuli was used to take away spiritual impurities. According to some archaeological discoveries, the Pharaohs used crystals in their clothing as well.
In ancient Greece, crystals were believed to possess spiritual properties. This is part of the reason why so many crystals have Greek names. The word “crystal” itself originated from a Greek word for ice. The name hematite originated from a Greek word for blood, in part because hematite produces a red color when it oxidizes. The Greeks associated this iron ore with Aries, the god of war.
Amethyst is a crystal that was considered precious for thousands of years. Its popularity can be traced back to ancient Greece. The Greeks loved amethyst and associated it with their god of wine: Bacchus. Drinking vessels were often carved from this crystal.
After the mid 18th century when large deposits of amethyst were discovered in Uruguay and Brazil, the crystal became a semi-precious stone. In ancient Rome, this crystal was a symbol of fidelity. Roman matrons used to wear amethyst in order to ensure fidelity. This belief still has remnants in today's world.
In ancient China, jade was associated with immortality. Jade objects were extremely durable, and that's probably why they were linked to immortality. The ancient Chinese believed that jade could bring purity, intelligence and good luck. This crystal is still significant in the 21st century. In the 2008 Olympic Games in Beijing, jade was embedded into the medals.
Jade armour has been found in the graves of some Chinese emperors. In New Zealand, Maoris represented their ancestral spirits by wearing jade pendants. Even to this day, green stones are considered lucky in some parts of New Zealand.
Precious stones have always fascinated humans. Crystals are alluring in part because they are both transparent and dark. In the Middle Ages, people considered crystals a physical manifestation of faith and spirituality, and this belief is very much alive to this day.
The popularity of crystals can be explained by the fact that humans are as spiritual as they were in the past. Seeking solace in physical objects is a human trait.
Artifacts provide a lot of other historical references to crystals. In this brief history, we have just touched upon the popularity of certain crystals throughout the history of humans, in different parts of the world. In modern times, many people still believe that crystals possess healing properties. Many other people wear crystals simply because they are beautiful. Head on over to Botanical H2o for all your crystal needs here.
If you are going to buy a truck sleeper cab air conditioner, you should make sure that your money is well spent. There are several important things to consider before making a decision. In this post, we will tell you what things you should consider before you buy a truck sleeper cab.
To limit harmful emissions, anti-idling laws are in effect in Australia. Idling is allowed only for a certain length of time. The reasons of idling should be clear. But if you are a driver, you know that anti-idling laws are sometimes at odds with drivers. A driver who is just resting will not happily pay a fine. Drivers are seeking alternative fuels to power their air conditioners, because idling diesel engines are no longer an option. The market has responded, and now there are some auxiliary options for truck drivers. If you purchase an air conditioner, you should know the following things:
Typically, the truck’s batteries are used to power auxiliary heating units. Sometimes an external power connection is used to power the unit. In most cases, the systems use 120 volt AC power or 12 volt DC power. If you use 12 volt DC power, you do not need an offshore power hookup. During normal driving, the batteries are recharged by the alternator of the truck. As a result, you do not need to worry about finding a power outlet at night.
But there are several disadvantages of using 12 volt systems. There is a lot of pressure under the truck’s batteries. The batteries may be completely discharged if the system runs for a long time. And if the batteries are completely discharged, you may not be able to start the truck. That is why you should always keep an eye on the battery level, and make sure the batteries are never completely discharged.
When air conditioners are powered by 120 volt AC power, you have to plug-in to an offshore connection. Plugging-in is pretty convenient because most truck stops offer the service. Compared to the cost of diesel fuel, you have to pay a lower fee.
But 120 volt systems have some drawbacks too. The plug-in service is not available at all truck stops, and sometimes you will not have access to power sources. If you stop in a remote area, it may not be possible for you to get access to a power source.
That is why you should choose a system that can be run by both offshore power and batteries. You will have to spend some more on this dual-source system, but in the long run it will provide you with complete flexibility.
When choosing an air conditioner for your truck sleeper cab, you should pay attention to the details of installation, truck air conditioners like the system found here usually have separate condenser and evaporator units. Some units keep the evaporator in the inside and arrange the compressor on the outside. If you get the system installed in this way, there will be less noise inside the cab.
The installation process should be an important consideration. There are some systems that you can get installed within a few hours. There are some other systems that require extensive modifications, and these systems may cost you more. The installation process will have some effect on your truck, and you should consider it beforehand. There will be cuts and holes. And if moisture penetrates, it will lead to other problems. Make sure that the installation does not make extensive changes on the truck.
Truck sleeper cab air conditioners are getting more and more popular. If you want to get one installed, you must do that with caution. Hopefully this post will help you make an informed decision.