Table of Contents
Merv traded cotton and silk on the Silk Road and was well-known for the quality of its textiles.
Why was Merv important to the Silk Road?
As well as acting as a stopping point, Merv was also a centre for production and trade. Just outside of the gates of the city were large markets, potters’ kilns, and steel making furnaces producing the crucible steel for which the city was also renowned.
What was mainly traded on the Silk Road?
Besides silk, the Chinese also exported (sold) teas, salt, sugar, porcelain, and spices. Most of what was traded was expensive luxury goods. They imported, or bought, goods like cotton, ivory, wool, gold, and silver.
Who controlled the Silk Road?
With the defeat of Antiochus, Mesopotamia came under Parthian rule and, with it, came control of the Silk Road. The Parthians then became the central intermediaries between China and the west.
Is MERV 13 too restrictive?
MERV is a good way to help judge the effectiveness of an air filter. In some cases, using an air filter that is too restrictive for your system may cause low air flow problems as well. MERV 13 is the highest MERV value safe for residential furnaces; the higher ratings are used primarily in commercial units.
What replaced the Silk Road?
As Europe came to dominate trade in the nineteenth century, the traditional form of Silk Road trade was replaced by new methods and technologies, transforming international commerce from east to west.
How long did the Silk Road last?
Established when the Han Dynasty in China officially opened trade with the West in 130 B.C., the Silk Road routes remained in use until 1453 A.D., when the Ottoman Empire boycotted trade with China and closed them.
What are 3 things that were traded on the Silk Road?
In addition to the silk, China’s porcelain, tea, paper, and bronze products, India’s fabrics, spices, semi-precious stones, dyes, and ivory, Central Asia’s cotton, woolen goods, and rice, and Europe’s furs, cattle, and honey were traded on the Silk Road.
What MERV rating do I need?
As a general rule, residences do not use higher than MERV 8 filters. We do recommend that everyone uses filters that have at least an 8 MERV rating. These filters will remove the majority of pollutants from your indoor air.
Is MERV 12 too restrictive?
While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow.Learn how to maintain your. home and HVAC this fall.
| MERV | Minimum Particle Size |
|---|---|
| 9–12 | 3.0–1.0 μm |
| 13–16 | 1.0–0.3 μm |
| 17–20 | < 0.3 μm |
Who were the main traders on the Silk Road?
The most successful traders of the Silk Road were the Sogdians, an Iranian people who inhabited the region of Transoxiana (corresponding to the modern-day republics of Uzbekistan and Tajikistan) in Central Asia. They formed a caravan to travel to China and Central Asia back and forth.
Is the Silk Road still used?
Shut down by the FBI in October 2013. Silk Road 2.0 shut down by FBI and Europol on 6 November 2014. Silk Road was an online black market and the first modern darknet market, best known as a platform for selling illegal drugs. Silk Road provided goods and services to over 100,000 buyers.
Is MERV 8 good enough?
MERV 5–8 (good): These filters are better at catching small particles (3–10 microns) like mold spores, hair spray, dust mites and animal dander. MERV 9–12 (better): The best option for residential use. Particles this small include bacteria, tobacco smoke and even the contaminants in sneezes.
Does MERV 11 restrict airflow?
Be aware, too, that some retailers also use their own rating system instead of MERV. A decade ago, it used to be that if you had an HVAC system that used panel filters rated 6 through 9 MERV, putting in a MERV 11 or higher filter would restrict airflow (known as filter pressure drop).
Why is the Silk Road important today?
Even today, the Silk Road holds economic and cultural significance for many. It is now recognized as a UNESCO World Heritage Site, while the United Nations World Tourism Organization has developed the route as a way of ‘fostering peace and understanding’.
What MERV rating is a HEPA filter?
High-Efficiency Particulate Air (HEPA) filters are not MERV-rated, but a HEPA filter is typically considered as MERV 17 to 20, which is the highest group in MERV ratings. True HEPA filters have at least 99.97% efficiency in trapping 0.3-micron particles.
What type of people Travelled the Silk Road?
Famous Travelers on the Silk Road. In the history of the Silk Road, many renowned people left their footprints on this most historically important trade route, including eminent diplomats, generals and great monks, such as Zhang Qian, Ban Chao, Ban Yong and Fu Jiezi, Gan Ying, Xuanzang and Marco Polo.
Why was the Silk Road dangerous?
It was incredibly dangerous to travel along the Silk Road. You faced desolate white-hot sand dunes in the desert, forbidding mountains, brutal winds, and poisonous snakes. But, to reach this strip, you had to cross the desert or the mountains. And of course there were always bandits and pirates.
What was the greatest impact of the Silk Road?
The greatest impact of the Silk Road was that while it allowed luxury goods like silk, porcelain, and silver to travel from one end of the Silk Road
Is MERV 11 bad for HVAC?
The short answer is that it can, but it’s not really an issue except under extreme circumstances. Most modern HVAC systems have no problem working with higher MERV filters, which is why millions of homeowners depend on them.
What was the primary purpose of the Silk Road?
The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires. This helped for ideas, culture, inventions, and unique products to spread across much of the settled world.
What is the lowest MERV rating?
MERV 6 is the lowest MERV rating offered by AirFilters.com. Though not recommended for allergy and asthma sufferers, filters with a MERV 6 rating are 8 times more efficient than the regular cheap fiberglass filters. Filters with a MERV 6 rating will remove large particles like allergens, dirt, debris, lint, dust, etc.
