Excitedly diving in to unpack my heavily packaged new mattress with the supplied tool..
Switzerland once built the world’s largest non-military submarine. During the national exhibition of 1964, the Mésoscaphe, powered by an electric motor, undertook approximately a thousand diving excursions, showing about 33,000 passengers the world below the surface of Lake Geneva. blog.nationalmuseum.ch/en…
Put this bad boy off for awhile now but I'm finally getting around to finishing the Guillows B-25. I'm going for the H variant and painting her all aluninum. The control surfaces are covered in a piece of supplied cardstock.
🔥 The water spider that builds its underwater house. The water spider lives on land and hunts in water. It makes a kind of diving bell by filling the very tight and waterproof sac that it knits deep into the water with the air it brings from the water surface. v.redd.it/cnwytaea4n181
Switzerland once built the world’s largest non-military submarine. During the national exhibition of 1964, the Mésoscaphe, powered by an electric motor, undertook approximately a thousand diving excursions, showing about 33,000 passengers the world below the surface of Lake Geneva. blog.nationalmuseum.ch/en…
IsItBullshit: Was a 1998 diving incident near the Great Barrier Reef the sole reason for why divers switched from doing a head count – to reading people’s names (before returning to the surface/boat)?
This comment claimed that this is the case, and it got some traction.
(A link to said incident is found in the hyperlink above.)
As you can see the OP mention in the same thread, apparently it used to be “assumed” by the crew that everyone was onboard if the engines started. Uhh?
Have I messed up, the sand line does not quite reach the surface by a few millimetres where they go to access the food supplied?
🔥 The Great Crested Crebe adults teach the chicks to swim by carrying them on their back and diving, leaving the chicks to float on the surface; they then re-emerge a few feet away so that the chicks may swim back onto them.
This Beast of a Surface Miner helps my Station around Duna stay supplied.
The Anguished - I started Zbrush around 2 months ago and learned Blender this last month for cycles renders. I'm still learning! This has become my main hobby. I am currently studying anatomy and now diving into hard surfaces! I would eventually like to get my hands on Keyshot! Don't have the $ lol
Great white sharks attacking tuna bait during cage diving in South Africa. Two clips filmed from the surface. youtube.com/watch?v=6BpsF…
A picture of a mother and her son right before their flight MH17 was shot down over Ukraine by Russian separatists using a BUK surface to air missile system supplied by Russia.
Diving from a boat without surface support?
What are your opinions regarding boat diving where all divers enter the water and noone is left in the boat for surface support? This has been standard practice for a local dive club for the last 30 years. There's been at least one incident where the divers got caught in a current and fortunately another boat saw them and picked them up. We don't usually have much current but when there is the dive starts heading into the current and we drift back. Theres also been other times when mooring lines have broken duringthe dive. It hasn't happened to the club but it has happened with some of the charters.
I'm feeling like its just a matter of time before someone gets stranded but they've had 30 years of success with their approach.
I'm looking into PLB options or even a marine radio in a protective case. Unfortunately I can't find a case thatllchold my radio. Whats your favorite option that'll link me to nearby boats or a sat connection to lifeguards/coastguard?
Diving bell attraction that visits the(low-vis) German seabed whilst staying at surface-pressure youtu.be/kZ1CZh85Ugs
TIL the world record deepest scuba dive was performed by Ahmed Gabr, a special forces officer on the Egyptian army. Ahmed reached a depth of 1090 ft. Although he was able to reach this depth in approximately 12 minutes, it took almost 15 hours for him to surface safely. guinnessworldrecords.com/…
Did you know that some whales can dive up to 3000m (10 000ft) under the surface? It makes them the deepest-diving mammals. But how do they do it? By adapting their body to handle the lack of oxygen and crazy high pressure. But life in the abyss is not without risk...
[#26|+11365|395] TIL Olympic swimming pools must be sprayed with water during diving. It’s a safety feature called mechanical surface agitation and it allows diver to determine when they should enter their rotation. [r/todayilearned] reddit.com/r/todayilearne…
The Squeeze Effect - Old hardhat diving rigs can squeeze a diver into the helmet if surface air supply is lost youtube.com/watch?v=pRC5R…
Rockport: After years of diving in the local marinas and seeing what the pilings look like under the surface it's amazing that this doesn't happen more often. imgur.com/gallery/IQm2Lwq
TDIH: October 27, 1962, Major Rudolf Anderson of the United States Air Force becomes the only direct human casualty of the Cuban Missile Crisis when his U-2 reconnaissance airplane is shot down over Cuba by a Soviet-supplied surface-to-air missile.
[todayilearned] TIL Olympic swimming pools must be sprayed with water during diving. It’s a safety feature called mechanical surface agitation and it allows diver to determine when they should enter their rotation. sportingnews.com/us/athle…
the heart of a Blue whale is so big that a man can swim in its artery. His heart weighs 600 kg and allows the circulation of 10,000 liters of blood. Its rhythm is only 8 beats per minute on the surface and 4 beats per minute while diving.
I am currently in Norway training UW Welding and Oxy-Arc metal cutting among many other things such as bell diving, UW lift bags, UW drilling etc. This is from the last few days. To hold 5000 degrees Celsius in your hand - on the bottom 12m below the surface, is a surreal feeling to say the least! youtube.com/watch?v=aP8-D…
TIL Olympic swimming pools must be sprayed with water during diving. It’s a safety feature called mechanical surface agitation and it allows diver to determine when they should enter their rotation. reddit.com/r/todayilearne…
A surface level selection, but thanks to this sub I’ve been thoroughly enjoying my journey into the world of whiskey. Looking forward to expanding my palate and diving into more diverse profiles! Cheers!
I am currently in Norway training UW Welding and Oxy-Arc metal cutting among many other things such as bell diving, UW lift bags, UW drilling etc. This is from the last few days. To hold 5000 degrees Celsius in your hand - on the bottom 12m below the surface, is a surreal feeling to say the least! youtube.com/watch?v=aP8-D…
[WP] You breach the surface and swim over to the diving boat. As you climb into the boat you notice the instructor and captain slumped over each other in a sort of lifeless embrace. You take off your mask and instantly realize you can't breathe...
Air supplied Surface to Air Missile FOB youtube.com/watch?v=WeTI_…
TIL southern elephant seals have been recorded diving to depths of OVER 2,300 meters (almost 1.5 miles) below the surface of the ocean, and can dive deeper and for longer duration than most cetaceans (whales, dolphins, porpoises)! en.wikipedia.org/wiki/Sou…
An F-104G of Deutsche Marine dives too low during an exercise and touches the sea surface. Plane loses its drag chute but safely lands afterwards. [1014x529]
Cape gannets, native to several coastal islands of southern Africa, have evolved to have no external nostrils on their beaks enabling them to dive into the water at breakneck speeds of 75 mph (120 km/h). As they pursue fish far below the surface, gannets use their wings and webbed feet to navigate. v.redd.it/19cmr8idu5x71
Currently in Norway catching a dream training Underwater Welding and cutting. In our hands we hold 5500 degrees celsius which is the same temperature as the surface of the sun. They send us down in so called ”wetbells”/diving bells. Upon reaching bottom we jump out of the bell and start working. youtube.com/watch?v=e274y…
Anyone know these people?! Found their swamped Go Pro that was underwater for 2 years, 93 feet under the surface! Miraculously the SD card still works. Found scuba diving in Molokai, Hawaii. If anyone knows them please let me know- would love to return their SD card full of vacay photos.
A team used 3D printing to make rubber robotic fingers with feedback sensors composed of a conductive gel. When the researchers manipulated the fingers, the sensors supplied data on each finger’s orientation, and detected contact with other surfaces. nature.com/articles/d4158…
🔥 Eider Ducks diving underneath the surface to eat in Norway.
In a first, researchers design robots that don’t need electricity: These liquid robots that are like tiny submarines, which dive below the surface to retrieve precious chemicals, and then resurface to deliver chemicals “ashore.” And they can do this over and over, without ever needing to recharge. umass.edu/news/article/fi…
A surface-supplied diver resurfaces after inspecting the hull of an Italian submarine, 1940 [2084 x 2096]
Super easy math question clarification help please: A soaring falcon dives to the surface of a lake to catch a fish. The change in the falcon's elevation is -192 feet. What was the falcon's elevation relative to the lake before the dive?
The answer to this question is conveniently NOT in the Student Solutions Manual, and I'm studying this remedial math textbook months in advance of the actual course, so I can't ask the prof for clarification yet.
Since the problem does not state the falcon's elevation before diving, does this mean the problem cannot be solved, thus is a trick question?
Or do I assume "surface of the lake" is 0 feet, thus the falcon's elevation relative to the lake before the dive is 192 feet?
Absolute value is easy beginner's math but this question is vague af and difficult to answer.
To note, this is from the Foundations of Mathematics textbook (Hang Lau) for McGill's CMSC 000 course. Page 7, problem #54.
Thanks for any help you can provide!
Happy studying
In both skydiving and scuba diving, the aim is to get to the surface alive
