Etymology of English diving terms starting with "B"

Άρθρο: Γιώργος Πέτρου

Photo: HUE Archive

ΕΤΥΜΟΛΟΓΙΑ ΚΑΙ ΜΕΤΑΦΡΑΣΗ ΑΓΓΛΙΚΩΝ ΚΑΤΑΔΥΤΙΚΩΝ ΟΡΩΝ

Diving terms starting with the letter "B"

Καθημερινά παντού ακούμε αγγλικούς όρους Τεχνικής , και μη, κατάδυσης που πολλές φορές ή έννοιά τους είναι ασαφής. Για αυτό επέλεξα ένα γράμμα της Αγγλικής αλφαβήτου το B για να δούμε όρους που ξεκινάνε από αυτό.

Let's see the translation and meaning of each word. Words that can represent systems, methodology, equipment, scientists and much more. So let's see them in the article.....

Αρχείο: TDI (Technical Diving International)

Back gas
Όρος που άρχισε να χρησιμοποιείται από αυτοδύτες που ασχολούνται με την Τεχνική Κατάδυση και εννοεί το αέριο (μίγμα) που βρίσκεται στις κύριες φιάλες μας. Στίς φιάλης που έχουμε στην πλάτη μας. Άρχισε να γίνεται δημοφιλής από την στιγμή που ξεκίνησε η χρήση επιπλέον φιαλών (stage) μπροστά ή στα πλάγια του αυτοδύτη όπου "κουβαλάει" επιπλέον απόθεμα αερίων και καλύτερο μίγμα ( Εμπλουτισμένο σε Οξυγόνο / Enriched Air Nitrox).

Back Pack

Plastic back with straps for attaching a single tank, used alone or with the old "horse collar"... the old saddle and the old bib-type buoyancy regulator... maybe it reminds some of you of something... it reminds me of a lot.

Back Plate

A support back for either tank straps or BCD (Buoyancy Compensator) usually made of materials such as Aluminum, Stainless Steel and often high-strength plastic. It is used to support Double Tanks and in between the BCD bag. The stainless steel back has more weight than other materials and helps us to relieve our waist of many weights as well as to have the weight evenly distributed throughout our upper body. The plastic back is very useful when we are going to travel and we do not want weight.

Back up Lights

Ο όρος σημαίνει εφεδρικά φωτιστικά συστήματα για χρήση στην περίπτωση που τα βασικά μας φώτα υποστούν κάποια βλάβη. Συνήθως έχουν δύο μορφές: είτε μικροί φακοί με επαναφορτιζόμενες - ή μη - μπαταρίες, είτε φακοί τύπου technical στους οποίους η μπαταρία είναι αποσπασμένη από την κεφαλή με το λαμπάκι. Η μπαταρία είναι προσδεμένη στην φιάλη μας ενώ η σύνδεσή της με την κεφαλή γίνεται μέσω ενός καλωδίου. Το σημείο τοποθέτησης αυτού του εφεδρικού φωτιστικού εξοπλισμού είναι καθαρά προσωπικό μας θέμα αλλά με ένα δεδομένο: ή πρόσβασή σε αυτό να γίνεται εύκολα και άμεσα.

Bail out bottle/cylinder

A spare, small-volume cylinder (in no case does it make a Spare Air type cylinder - the term is listed in the encyclopedia) for use in an emergency for rescue and ascent. Ideal for cases where the diver "runs out" of gas reserves, or urgently needs to switch to another mixture. Particularly necessary for diving with Rebreathers, since we all know that Rebreathers, despite their great benefits, unfortunately still present great vulnerability.

Bail Out Tables

Backup tables or better plans which are extremely necessary in cases where we either interrupt our dive early or exceed the predetermined time or depth of dive or both. For the latter case, it is necessary to foresee the adequacy of gases. Choosing the right plans is a purely personal matter and requires proper training and seriousness.

Bands

A classic concept that of course means fabric straps or hoops. Hoops are nothing more than cylindrical stainless steel structures used to hold double tanks that sometimes are (the tanks) and sometimes are not connected to each other by a tube. Hoops are the most reliable and stable option for supporting tanks. On the other hand, straps are an easy and convenient solution for supporting tanks on the diver's back.

Bank

Large volume and pressure cylinders which we use as gas storages and which help us to transfer, increase the pressure in smaller volume cylinders in a very short time. Particularly useful when there is no air compressor or it is not available in time.

Bar

Our well-known and beloved unit of pressure measurement. Its equivalence with the atmosphere is 1 ATA = 1.0132 Bar. Its equivalence with the pressure measurement unit of the Anglo-Saxon system is 1 bar = 14.5083 psi (per square inch). The most commonly used cylinder filling pressures are 200 or 232 bar. Of course, we also have cylinders with an operating pressure of 300 bar. In cases of such high pressure (300 bar), a pressure regulator and a DIN-type cylinder closure are required. By default, we have 1 bar of pressure for every 10 meters of seawater.

Barometric Pressure

Βαρομετρική πίεση είναι η Ελληνική μετάφραση των λέξεων αυτών. Η πίεση του ατμοσφαιρικού αέρα οποίος δεν είναι πάντα 1000mbar. Δύναται να είναι και 965mbar.

Barotrauma

It is unnecessary to emphasize the origin of this word. Its translation is of course the Greek word Barotrauma and as we all know it is an injury that can occur from the difference in pressure on the walls of a tissue in an air-filled space. Such air-filled spaces are: In the head The Frontal sinuses, the sphenoid sinuses, the middle ear, the ethmoid and sphenoid sinuses etc. In our main body it mainly concerns the organ of the Lung and in very few - rare cases the stomach etc... The two most classic cases are: a) holding the breath during ascent (lung barotrauma) b) the non-equalization of the pressure exerted on the tympanic membrane during diving. (Ear Barotrauma).

Battery

It means battery and as we all understand, we mean nothing more than a small "storage" of electrical energy which is extremely necessary for the support and maintenance of the operation of many pieces of equipment used in diving. Such parts of diving are: Dive computers, electronic flashes, strobe lights, flashlights, cameras, Rebreathers and many other applications... Batteries can be from very small volume or capacity to very large volume and capacity. They can be rechargeable or not. Nickel Cadmium, Nickel Hydride, Lithium or other component. In case of non-operation, their disposal must be done in a specific way.

BCD

The initials of the words Buoyancy Control Device. That is, Buoyancy Control Unit... our well-known Buoyancy Regulator. We distinguish them into side-filling and back-filling. Side-filling ones are used in recreational diving while back-filling ones are used in technical diving. Back-filling ones clearly have greater buoyancy and capabilities.

BCLS

Initially, they stand for Basic Cardiac Life Support.

Beaufort Scale

Η γνωστή μας κλίμακα μέτρησης της δύναμης του ανέμου. Συχνά ακούμε να λένε ότι έχει άνεμο 5 μπωφόρ... καταλαβαίνουμε το πόσο φουρτουνιασμένη είναι η θάλασσα. Δημιουργήθηκε από τον Βρεττανό Sir Francis Beaufort (1774-1875) το 1805.
Η κλίμακα δύναμης του αέρα βαθμονομείται σε 13 επίπεδα, από το 0 (απόλυτη ηερμία) στο 12 (Τυφώνας). Βαθμονόμηση, επίπεδα από το 13 έως το 17 Beaufort προστέθηκαν από το US Weather Service το 1955 για να συμπεριλάβει και την μέτρηση των φαινομένων των Τυφώνων.

Beaver tail

Είναι η γνωστή μας προέκταση που έχει το κατώτερο σημείο του πάνω μέρος της στολής μας Νεοπρενίου και μας βοηθάει φέρνοντάς το μπροστά και ανάμεσα στα πόδια μας (και ασφαλίζοντάς το) να σταθεροποιούμε την στολή στο σώμα μας.

Bend-O-Matic

Older divers will remember one of the first Mechanical Dive Computers!!! Of course today it looks so incomplete but for that time it was a....good effort.

Bends

The well-known word that defines Diver's Disease or otherwise Decompression Sickness - DCS (Decompression Sickness).

Bert, Paul

French physiologist born in 1833 and died in 1886. Known for his scientific work on Oxygen Toxicity, the Paul Bert phenomenon, describes the effect of Oxygen on the Central Nervous System (CNS). He was essentially the first to identify Nitrogen as the gas responsible for divers' disease. From his own scientific observations and work, Haldane later began the creation of the first decompression tables.

Best Mix

Best mix is the exact translation. It is used in Mixed Gas diving and by using the appropriate type we find the ideal - best mix for a specific depth. Its use in Enriched Air Nitrox or Trimix diving is essential. Essentially it determines the Fg, i.e. the Fraction of Gas which in this case... let it be... Oxygen. Two such types are:

FO2 = 1.4 PPO2 --------------- in Imperial system (Depth / 33) 1

FO2 = 1.4 PPO2 --------------- in Metric system (Depth / 10) 1

                                                PPO2 (Μέγιστη Μερική Πίεση αερίου)
Πιο απλά θα γράφαμε: FO2 = --------------------------------------------------
                                                     ATA (Απόλυτη πίεση βάθους)

Bezel

We mean the rotating disc located either at the top of the compass or on our diving watch.

Bladder

Είναι ο αεροθάλαμος, ο σάκος του ρυθμιστή πλευστότητας. Η πλήρωσή του γίνεται είτε με το στόμα είτε με αυτόματο σύστημα. Παλιά υπήρχαν και μικρά φιαλίδια που χρησιμοποιούντο για την πλήρωσή τους.

Bitter End

Το τέλος, η ελεύθερη άκρη ενός σχοινιού.

Blow off

A term that in the "hairy - colloquial" language of metaphorical concepts means the following: a) the gas that is expelled or other non-metabolized gas b) the omission of a Decompression - Denitrification stop (certainly not a good choice...)

Blow up

It usually refers to a rapid/uncontrolled ascent due to the expansion of air in the dry suit. In essence, Blow up means a rapid/uncontrolled ascent for any reason, which is particularly disastrous when we have made a deep dive, and even worse with a long stay and a lot of decompression time. A Blow up can result in Diver's Disease or even a barotrauma of the air spaces, especially the lungs.

Boot

Very simply the plastic/rubber boot of the bottle. Well-known diving exhibition in Germany.

Booties

Τα γνωστά μας μποτάκια από νεοπρένιο με φερμουάρ στο πλάι, είτε με μαλακή είτε με σκληρή σόλα και τα οποία και χρησιμοποιούμε όταν θα κολυμπήσουμε υποβρυχίως με ανοιχτού τύπου πέδιλα.

Bottle

Colloquial alternative expression / word for the word Tank or otherwise bottle.

Bottom Mix

Bottom mix refers to the mix that will be used at the deepest point of the dive. It can be air, Trimix, Heliox or even Enriched Air Nitrox. In the bottom mix we make sure to make interventions so as to reduce the Narcotic effect of nitrogen and the toxicity of Oxygen. We usually add Helium to achieve this.

Bottom Time

The literal translation is Bottom Time. And we clearly mean the time that will remain at the deepest point of the dive. On the other hand, we would say that the "O" time starts from the moment the diver leaves the surface and stops the moment the diver begins to surface again.

Bounce dive

It refers to a dive where there is essentially no dwell time at the deepest point, but the diver immediately surfaces upon reaching the deepest point of the dive. We have often referred to it in the past as a “Spike Dive.” This is usually done in very deep dives.

Boyle's Law

Sir Robert Boyle observed in 1662 the change in volume due to the effect of pressure. He observed that volume and pressure are inversely proportional. That is, as the pressure increases, the volume decreases and vice versa.

The mathematical formula is PV=K

We know him better as P1V1=P2V2.