Catching tearDs - A Complete Guide
During "Deathly Hallows Part Two," Hermione whipped out a long thin glass bottle that captured Harry Potter's tears. The 'tear catcher' tradition is a dream of many merchandisers. Potter fans' tears are no doubt a joy for antiquarian dealers.
The history of tear catchers, also known as lachrymatory bottles, dates back centuries. In the Bible, they are mentioned. Egyptian and Roman examples are provided. Because these bottles were associated with wealth, it is likely that those with extra denarii could store tears in them.
In the Victorian era, tear catchers were used by all classes as soon as they were reintroduced. A special bottle was used to collect tears when a loved one passed away. Tears could evaporate through tiny holes in bottle stoppers. The mourning period ended when a dry bottle was found.
Before leaving for duty, soldiers would give their wives tear bottles. As time went on, their wives added more tears to glass cylinders after they left. The bottle is full when he returns home from an extended absence, and he knows that his wife grieved while he was gone. Soldiers' wives poured their tears onto the graves of their husbands to mark the end of a year of mourning.
Many women shed tears when Aspen's mining era came to an end. These people died young because life was hard for them. In childbirth, many women died, and many children died before they reached adulthood. Widows faced many financial challenges after their hardworking husbands died young.
There were four undertakers needed because Aspenites died at a high rate. E. Turley was busiest during the summer at Cooper Avenue's E. Turley. Wilson and Allen fought one another on South Mill in the 1890s. During his time as coroner, Johnsen worked for a long time. His business was purchased between the Jerome Hotel and Main and Mill by Belden and Beall.
Collins Block Building, located in a prominent area, was occupied by Belden and Beall. The furniture business they ran was similar to that of all the undertakers and embalmers in Aspen. Funeral caskets were made by furniture makers in conjunction with funerals.
Funeral homes sell funeral accessories today as auto dealers do for their vehicles. Jewelers and perfume manufacturers benefited instead of Victorian undertakers from the fad at that time.
Did you ever marvel at a dolphin's motion, a seal's motion, or a shark's motion? It seems that moving them is not difficult. Over millions of years, they have evolved to be fast and agile as marine predators. As water has an 800 times greater density than air, increasing speed requires a large amount of propulsion power. Streamlining helps reduce drag while moving through water efficiently.
2nd Reason for TRIM
Diving in trim means facing forward toward the surface. In order to move efficiently through the water, it is essential to have a good horizontal trim. In your dry suit, weight placement, BCD weight, and gas positioning all contribute to successful trim. Good vertical trim can be achieved by competent backmount divers as well as good horizontal trim. Your cylinders are positioned on either side of your body, allowing them to be more closely aligned with your center of gravity and buoyancy.
Lastly, there is a need for balance
Both sides of your torso will have sideways mounted cylinders. No matter how you position yourself, your center of gravity and buoyancy will always be close to the center. Your balance is never affected by your position, whether you are upright or inverted.
Sidemount diving appeals to me for the following reasons.
FIRST, STREAMLINING IS IMPORTANT
Dolphins, seals, and sharks move so gracefully, how many times have you marvelled at their motions? It seems as if they move effortlessly. As marine predators, they have evolved speed and manoeuvrability over millions of years. Due to water's density of 800 times that of air, increasing speed requires many times more propulsion power than increasing speed. When moving through water efficiently, streamlining is important to reduce drag.
The second reason is to trim
A diver is generally considered in trim if he or she is facing forward toward the surface. Horizontal trim is essential for moving efficiently through the water. It is important to place your weight, weigh your BCD, and position your gas in your dry suit properly to get an effective trim. Sidemount divers must have good horizontal trim, though backmount divers can also attain good vertical trim. Because your cylinders are on the sides of your body, they align closer to your centers of gravity and buoyancy, resulting in a pro-trim effect.
The third reason is balance
Sideways mounted cylinders will be on either side of your torso. Your centers of gravity and buoyancy will always be near the center of your body, no matter how you position yourself. It doesn't matter if you're upright or upside down, you're balanced.
In contrast, backmounting involves hanging your cylinders from your back.
If you turn to the side, you will create a significant moment or force that will cause you to back down. Despite being controllable with body tension, it can be disconcerting and interfere with feeling balanced when diving.
Decompression stop of a sidemount diver
The fourth reason is STABILITY
Stability depends on trimming, balance, and buoyancy. Staying in trim and balanced is the essence of stability. When your buoyancy balances your gravity, you are in trim. Besides being weightless, you are now a stable platform from which to perform tasks or skills. Silt caused by contact with cave or wreck floors can reduce visibility in overhead environments, such as caves or wrecks. Performing gas switches while maintaining specific depths is another requirement of decompression diving.
5th Reason for Redundancy
Redundancy is another important reason to dive with two or more cylinders in addition to being able to carry more gas. It provides additional safety in case of equipment failures or diver errors. In multi-cylinder configurations, both the cylinders and the regulators are redundant. The side mounting of gas supplies provides two independent gas supplies, as opposed to an isolation valve. It is a distinctive feature that has both pros and cons.