November 2020
FROM EGYPT TO THE WORLD
DIVENTURES
EDITOR NOTE Dear readers ... Welcome to the November 2020 issue, the eleventh issue of Davidson Magazine. November was full of events and news in the field of diving and marine life in the Arab world, especially Egypt. We will learn about that news in the section on diving news We will also complete a collection of articles by His Excellency Ali bin Thalith on underwater photography and parts of
writing values underwater photography without secrets. And many useful and light topics for beginners in diving. We’d like to thanks Mirko Andersen for
providing us the cover photo Finally ... We ask for your support to us on the Patreon platform to help us continue, and for our magazine to remain free to reach its message to all those interested in the field of diving.
Mohsen Nabil Founder
Magazine Cover
Longimanus Shark Photographed By
MIRKO
Support Us
PATREON
SCUBA NEWS
Egypt Retains 2nd Place for Best Dive Destination Egypt retains the second place it earned in 2019, once again commanding a large proportion of the vote, with a lot of enthusiasm for a nation that has seen its beleaguered tourist industry
suffer a number of setbacks over the last
5
decade. With its crystal clear blue waters, year-round sunlit, cloudless skies, vibrant coral and a good
range of big to little critters to delight over, the Egyptian Red Sea is not just one of the world's best diving destinations, but the birthplace of a great many love affairs with the underwater
world. Regular visitors will no doubt be pleased to see two Egyptian centres making the Top 10 for the first time in 2020. Diventures Magazine
November 2020
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SCUBA NEWS
Egyptian DIVER Claims Endurance Record Egyptian scuba diver Saddam Al-Kilany, 29, has claimed a new world record for longest saltwater dive, after staying under water for almost six days in Dahab in the northern Red Sea. The claim awaits verification from Guinness World Records (GWR).
Al-Kilany was said to have spent five years preparing for his record attempt. Submerging on 5 November, he was attended by a medical team supervised by Adel Taher, well-known to
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scuba divers as director of South Sinai’s Hyperbaric Medical Centre.
Al-Kilany was monitored on camera throughout his dive, and GWR will have to scrutinize some 143 hours’ worth of video footage to ensure that all its conditions were met. The diver was reported to have passed the time by exercising, praying, eating and drawing – one of his favorite pastimes is
said to be underwater painting. In September he and his Spanish fiancée, fellow-diver Pia Legora, had made headlines in Egypt by holding their engagement ceremony under water. Current world record-holder and the man Al-Kilany’s dive was designed to beat by a matter of minutes is Turkish diver Cem
Karabay. He recorded a time of 142 hr 42min 42sec in 2016. Diventures Magazine
November 2020
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SCUBA NEWS
Tragic Shark Accident in Egypt A tragic shark attack in the Egyptian Red Sea over the weekend saw a 12-year-old boy lose an arm. The incident happened in the popular Ras Mohammed National Park, off the tip of the Sinai Peninsula to the south of tourist
hotspot Sharm el Sheikh. A Ukrainian mother and son were snorkelling with an Egyptian guide when the attack took place. It is suspected that the attack was carried out by a two-metre oceanic whitetip shark. The area of the marine park has been closed off. A statement from
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the Egyptian Environment Ministry said ‘the minister has decided to suspend all human activities in the vicinity of the attack in accordance to present global practice in shark attacks on humans’. The ministry also said that video footage captured underwater at the attack location showed the shark had been acting abnormally and had been hostile towards humans.
Thankfully, shark attacks globally are very rare, and there have been few such incidents in the Red Sea. When there have, there have often been exacerbating circumstances, such as feeding. The oceanic whitetip shark is one of the most-majestic sharks in the ocean, and is one of the species most sought after by divers, as its
inquisitive nature will mean it will approach quite closely, allowing them to get phenomenal images. Diventures Magazine
November 2020
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SCUBA NEWS
Divers Find Bones, Boots & Weapons The remains of a young 16th-century soldier have been found by scuba divers in Lake Asveja in eastern Lithuania. Archaeologists found the bones beneath a layer of mud and sand at
a depth of 9m. They had been excavating beneath Dubingiai Bridge, a timber structure built in 1934 to span the northern part of the lake. The discovery was described as the first of its kind in Lithuania by Elena Pranckenaite from the archaeology department at Vilnius
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University. She said that the location had not been a ceremonial burial site, but the soldier had been identified as such because he was found with his sword, two knives and well-preserved leather boots. How and exactly when the man had died could not be determined but his bones have been sent for forensic examination by the
university’s medical faculty, while the soldier’s possessions are being conserved at the National Museum of Lithuania.
Lake Asveja lies in the east of Lithuania, north of the capital Vilnius, and is the country’s longest body of water at nearly 14 miles. It is
said to be explored regularly by underwater archaeologists.
Diventures Magazine
November 2020
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COVER PHOTO
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Mirko … Abu Noah
Diventures Magazine
November 2020
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11th ISSUE
DIVENTURES MAGAZINE
COVER PHOTO
One day, the decision was made to return to diving again. So he booked a day trip with two dives to discover scuba diving, he and his son. After that I became full of happiness and forgot for a moment the depression that afflicted me in Germany. He was sure he needed to
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dive more. So after one month, he A
German
underwater
returned to Egypt for 4 weeks and did an
photographer, lives in Egypt. Mirko made
open water diver course and an advanced
his first dive at the age of 12 while visiting
open water diver, after returning to
his uncle Ibiza, Spain, he immediately liked
Germany it only took two weeks to miss
the
underwater
Egypt. Mirko loves Egypt and its Red Sea
weightless. His uncle trained him to dive,
so much. So he came back for 4 weeks
but without getting certified. At the age of
and did the rescue course and some
14, he started working alongside school
specialties. In these four weeks he
and life became more serious. After
realized that scuba diving could change
completing his professional training at the
his life, he became really depressed in
age of twenty, he worked as a mechanic
Germany from working 7 days a week, 15
and as a chef, working for a long time as a
hours a day. So he returned to Egypt, but
chef in a restaurant in Germany. And in
this time not in a hotel, he rented an
2018, his first visit to Egypt was for him
apartment and had been going diving
and his son for a two-week vacation.
every day for more than a year.
feeling
diver
of
and
being
Diventures Magazine
November 2020
Now he's becomes a PADI Divemaster and a diving guide, lots of diving and experience in the Red Sea in Hurghada and safari trips helped him to be a good guide. Abu Noah's passion, as he likes to be called by his friends, has become underwater photography, and he has many wonderful shots and videos that you can find on his Instagram account under the name mircoseye Abu Noah (Mirko) says: “Diving changed my life. I like to wake up every morning and happily walk to the diving center to
adventure with me. I enjoy seeing how diving every day changes life for the better as mine.�
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UW PHOTOGRAPHY
19
Flashlights
Diventures Magazine
November 2020
One of the most important secrets of success
in
producing
beautiful
underwater images, especially in macro photography, is the use of
blinking or strobes flash lights that to
show
colors,
improve
contrast, and bring pictures to life. Flashlights vary in their power, prices, sizes, method of connection and use, as there are many options in the market,
which
may
make
the
purchase decision confusing.
11th ISSUE
DIVENTURES MAGAZINE
20
help
UW PHOTOGRAPHY
In addition to the brightness number,
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attention should also be paid to another
However, we recommend that you simply
specification in the flash light, which is
purchase the most powerful flashlight
the color temperature that affects the
possible within your budget. Likewise, one
white tones in the image, as the flash
strong flash is better than two weak lights
light can be closer to the blue spectrum
because the extent of light penetration
(or cooler) or closer to the red spectrum
into water depends on the strength of the
(or
light and not the number of lights, but the
measured in units (Kelvin), with larger
multiplicity of lights allows to reduce the
numbers indicating cooler light (5500 K),
appearance of sharp shadows in the
while smaller numbers indicating warmer
image. The strength of flash light is
light (4,700 K).
indicated by a number that expresses the
One of the most common accessory flash
brightness of the light it can produce at
lights used in underwater photography
ISO100, but the density of the water
(snoot), which reduces the angle of
makes the actual brightness underwater
spread of light and makes the lighting
less than half what that number indicates.
circle smaller. Where
Diventures Magazine
warmer).
Color
temperature
November 2020
is
Focus Flashlights
of its aperture can be changed to
Due to the difficult lighting conditions
change the size of the diameter of the
and the scattering of light underwater,
spotlight depending on the size of the
most cameras struggle with automatic
subject or the shooting distance. In
focus adjustment, as the underwater
addition, there are different types of
camera tends to search unsuccessfully
cables and connections that are used to
for the correct focus hunting, and for
connect and control flash lights, as well
the assistance of the camera systems. To
as switching connections that allow a
successfully adjust the focus, special
flash of one type to be installed on an
lights can be used that illuminate the
outlet or connection of another type, or
scene before the photo is taken (unlike
branch connections that allow more
flash lights that only work when you
than one flash light to be installed on
press the shutter button). Where these
one port. Where the flash lights are
lights are installed on the waterproof
installed on hinged arms on the side
cover or on the arms of the flash lights,
linked to the waterproof cover and
and some can be charged externally
allow change of position, angle as well
without the need to open it. Red light
as length (by adding or removing
can also be used to photograph
sections of the arm). These arms must
neighborhoods that are afraid of light.
be chosen to be durable, with fixed and
In most cases, focus lights do not affect
easy-to-tight joints to withstand the
the lighting of the scene or the
currents.
brightness of the image because the flash lights are much stronger than them, which makes them neglectful in the final image. However, some lights
are available with a photosensitive cell that can be set to turn off automatically when the main flash light starts. 11th ISSUE
DIVENTURES MAGAZINE
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The length of the funnel or the diameter
MARINE LIFE
Could manufacturing a COVID-19 vaccine pose a threat to sharks? MacDonald and Saul Study Summary While squalene made from shark liver oil is indeed sometimes used in vaccines, recent claims that this represents a major shark conservation issue are at best oversimplified, and at worst fear-mongering that distracts from real issues. Yes, some squalene is made with shark liver oil. But this does not mean that we are particularly likely to see the mass slaughter of sharks to meet the demand for squalene for COVID-19 vaccines. The biggest shark conservation concern raised by a recently published
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Macdonald and Soll analysis is that deep sea sharks contain more liver oil but are also more susceptible to overfishing pressure. Intensification of deep-sea shark fisheries will indeed be a problem, but there is currently no evidence that this is happening. It is also important to note here that the use of shark liver oil in making vaccines does not necessarily mean the death of many sharks that would not have been killed otherwise. As the paper's author Catherine MacDonald pointed out in her FAQ, about 100 million sharks are caught each year in current fisheries, and we can get a lot of squalene from them. Perhaps most importantly, you can get squalene of the same pharmaceutical quality at roughly the same cost from plants. It takes a little longer so we have to start now. The authors assert that this does not mean at all that sharks are more important than humans in a public health crisis; This means we can protect biodiversity while also saving human lives if we plan ahead a little bit. Diventures Magazine
November 2020
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DIVE MIDICENE
Diving & Diabetes Can I dive if I Have Diabetes? After your doctor approves, you can dive with diabetes, with some precautions. Diabetes should be well controlled and
diabetes complications free. Prospective divers with diabetes should first establish baselines for the impact of exercise on blood sugar levels by
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recreating some of the activities associated with diving (such as carrying tanks or loading diving equipment).
Assuming that there are no problems with hypoglycemia during these exercises, divers should begin diving in a controlled environment and progress to a calm environment in open water. Divers can gradually increase the depth of their dive, while keeping a record of their diet and blood sugar. Diabetics should avoid depths more than 30 meters, dives longer than 60 minutes, and situations that may exacerbate the risk of hypoglycemia such as cold water, strong currents, or other strenuous conditions. Diventures Magazine
November 2020
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MARINE ECOLOGY
Diventures Magazine
November 2020
Discovery of Coral Reef 500 m Height! Scientists have discovered a reef taller than the
Empire State Building at the tip of the Great Barrier Reef off Cape York, Australia. The reef towers are over 1,640 feet (500 meters) tall, making them taller not only than the iconic New York City skyscraper, but also the Sydney Tower
in Australia or the Petronas Twin Towers in Malaysia.
on R / V Falkor, a research vessel of the Californiabased nonprofit Schmidt Ocean Institute. The tougher point of the reef is about 130 feet below
the surface. "We were surprised and pleased with what we found," Dr. Biman said in a press release. "Not only to mapping 3D coral reefs in detail, but also seeing this discovery visually by a SuBastian robot is
incredible."
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It was found on October 20 by a team of scientists
MARINE ECOLOGY
At the beginning of this month ... the news of an oceanic white-fin shark attack on some surface divers
in the Ras Mohammed reserve spread. Which raised the question about the behavior of sharks, and whether it is a real threat to humans! Diventures Magazine interviewed Shark Researcher Elka Bojanowsky.
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You can follow this interesting meeting from here
Diventures Magazine
November 2020
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SCUBA
NITROX Nitrox is nitrogen mixed with oxygen. It is also known as enriched air due to the increased oxygen content in it. This specific component sets it apart from other common diving gases. Both recreational and technical divers use this gas to breathe. In
recreational diving, this mixture helps you absorb less nitrogen because it contains more oxygen. Nitrox mixtures usually contain more than 21% oxygen, but in no case should they exceed 40%. Benefits of Nitrox Longer Scuba Time Divers who use Nitrox absorb less nitrogen, making
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them stay underwater for longer. They are also less likely to have
hypotension disease. Less Fatigue This feature hasn't been confirmed yet, but some feel less tired. Longer Dives Absorbing less nitrogen in your first dive with Nitrox gives you more frequent dive times. Shorter Surface Intervals Nitrox breathing also gives you shorter surface
intervals. Disadvantage of Enriched Air Not Suitable for Depths to avoid oxygen poisoning, depending on the percentage of oxygen in the cylinder Oxygen Poisoning Increasing oxygen concentration can cause oxygen poisoning. Cost There is often an additional cost when using an enriched air tank.
Diventures Magazine
November 2020
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