Can you write with a pencil underwater?
An ordinary graphite pencil can be used to write and erasing is possible as well. What’s more, the AquaSketch’s surface is phosphorescent, which means it can illuminate notes during night dives.
How do you write on a dive slate?
Magnetic slates use special patented technology which allows the diver to write on a plastic surface using a special magnetized pen that causes tiny magnetic particles inside the slate to form the writing. And yes, just like those magnetic writing slates for kids, this one can be easily “cleaned” with a slide eraser.
How do you get rid of underwater slate?
Clean Magic Eraser. Works great on my dive slate, and you can cut it up into smaller pieces to keep in your dive kit. There is NOTHING better than this.
How do you communicate underwater?
A transducer is attached to the diver’s face mask, which converts his or her voice into an ultrasound signal. A fellow diver has an ultrasound receiver, which accepts the signal and converts it back to a sound that the diver can hear, allowing for communication.
What is a dive slate?
A dive slate is an erasable sheet or board, while wetnotes are notebooks of waterproof paper. Each can be used with a standard lead pencil, and whatever you write will stay there until you purposefully remove it, making a dive slate a handy way to record information underwater for later review.
Is there a device that lets you talk underwater?
A new underwater communications device from Casio, called the Logosease, now allows you to have a conversation with your scuba pals. By attaching the pocket-sized underwater two-way radio to your mask strap, and with simple operation, you can start communicating from 45ft away, and a depth of 130ft.
What are the hand signals underwater?
The first-hand signal that most scuba divers learn is the “OK” hand signal. Join the thumb and index fingers to form a loop and extend the third, fourth, and fifth fingers. This signal can be used as both a question and a response.
Do I need a dive slate?
While not totally necessary, dive slates are inexpensive and versatile in styles, so if you want to communicate more or gather more information on your dives, try one out and see how it works for you!
Is water 800 times heavier than air?
A Review of the Properties of Water Water is 800 times denser than air. Salt water weighs 64 pounds per cubic foot. Fresh water weighs 62.4 pounds per cubic foot. Every foot of descent in salt water adds another .
What is a Psoriacysts?
Psoriacysts produce toxins that, when touched, can produce symptoms ranging from a mild rash or sting to anaphylactic shock or even paralysis.