Bottomless

Depth
0.0 m

Bottomless

Scroll down and keep going

There is a bottom. It is a very long way from here.

0.0 mSunlight zone

Sea level. Nothing has gone wrong yet.

-1.0 mSunlight zone

The shallow end. A lifeguard is already watching you.

-2.0 mSunlight zone

Six feet under, the traditional depth for people who stop scrolling.

-3.0 mSunlight zone

The deep end of a hotel pool, where most confidence turns around.

-4.0 mSunlight zone

A city canal. Thirty rusted bicycles and one shopping trolley.

-5.0 mSunlight zone

The pool under a ten metre diving platform, built exactly deep enough to stop you.

-10 mSunlight zone

Every ten metres of water adds another atmosphere of pressure. Your ears knew first.

-18 mSunlight zone

The limit on a first scuba certificate. Past this you need more paperwork.

-24 mSunlight zone

The bottom of the Suez Canal, dredged to here and not one spade deeper.

-30 mSunlight zone

Nitrogen starts making divers feel clever around now. It is lying to them.

-40 mSunlight zone

The recreational scuba limit, where a hobby quietly becomes a qualification.

-55 mSunlight zone

The average depth of the Baltic Sea, which is essentially a very cold puddle.

-60 mSunlight zone

The deepest diving pool ever built ends here. We are only getting started.

-100 mSunlight zone

Less than one percent of the daylight is left. Red disappeared ages ago.

-115 mSunlight zone

The Channel Tunnel at its lowest point, with trains and sandwiches passing through.

-116 mSunlight zone

One metre lower sits the deepest metro station in the world, in Chongqing.

-120 mSunlight zone

A fig tree in South Africa pushed roots this far down looking for water.

-142 mSunlight zoneToday only

An unopened box marked kitchen, sitting where it landed three house moves ago.

-200 mTwilight zone

The end of the sunlight zone. Photosynthesis clocks off for good.

-214 mTwilight zone

The deepest free dive on record. Sled down, balloon up, one breath.

-332 mTwilight zone

The deepest scuba dive ever completed. Twelve minutes down, fifteen hours back.

-564 mTwilight zone

An emperor penguin has been recorded this deep. It does that for lunch.

-1,000 mMidnight zone

The midnight zone begins. Sunlight has never once made it this far.

-1,642 mMidnight zone

The floor of the deepest lake on Earth, and it is fresh water the whole way down.

-1,980 mMidnight zone

A blind springtail was found at this depth in a cave. No eyes, no plans, no rush.

-2,224 mMidnight zone

The bottom of the deepest cave yet explored. Two caves in one mountain keep swapping the title.

-2,388 mMidnight zone

The deepest dive measured on an elephant seal, which treats it as a commute.

-2,450 mMidnight zone

The Gotthard Base Tunnel, with two and a half kilometres of Alp sitting on the roof.

-2,992 mMidnight zone

The deepest whale dive ever recorded. Nearly four hours on a single breath.

-3,675 mMidnight zone

The deepest shark ever confirmed, getting on with things in total darkness.

-3,682 mMidnight zone

The average depth of the ocean. Everything above this was the shallow part.

-3,800 mMidnight zone

The wreck of the Titanic, in two pieces, being slowly eaten by rust bacteria.

-4,000 mAbyssal zone

The floor of the deepest mine ever dug. Ice gets pumped down to make it survivable.

-5,000 mAbyssal zone

Living microbes have been pulled out of rock this deep, eating stone very slowly.

-6,000 mHadal zone

The hadal zone starts here, named after Hades, because scientists enjoy themselves.

-6,865 mHadal zone

The deepest shipwreck ever found, a destroyer escort lost in 1944.

-6,957 mHadal zone

A dumbo octopus was filmed at this depth, flapping past like a lost umbrella.

-8,336 mHadal zone

The deepest fish ever filmed, a snailfish with the structural integrity of a wet tissue.

-8,376 mHadal zone

The deepest point of the Atlantic. The Pacific finds this adorable.

-8,849 mHadal zone

Turn Mount Everest upside down and the summit would sit exactly here.

-10,898 mHadal zone

A plastic bag was photographed at this depth in the Mariana Trench. Naturally.

-10,935 mCrust

The bottom of the Challenger Deep. There is no deeper water anywhere on the planet.

-12,262 mCrust

The deepest hole ever drilled. They stopped when the rock went soft and hot.

-13,500 mCrust

Below every hole humans have dug. From here the facts get noticeably looser.

-15,000 mCrust

The sock layer. Every sock that went into a washing machine with a partner and came out alone.

-17,000 mCrust

A seam of borrowed biros, all out of ink, none of them ever returned.

-20,000 mCrust

Compressed gym memberships, laid down every January, still being charged monthly.

-24,000 mCrust

The hair grip stratum. Dense, faintly glittering, older than agriculture.

-28,000 mCrust

A car park, level minus nine hundred. Plenty of spaces.

-35,000 mMantle

The base of the continental crust. Under here the rock stops belonging to anyone.

-42,000 mMantle

The mantle. Solid rock that flows, like a traffic jam with geological patience.

-50,000 mMantle

The complaints department for the mantle. Current waiting time is two hundred million years.

-62,000 mMantle

A shale of unread terms and conditions, every one of them accepted.

-80,000 mMantle

The charger graveyard, sorted neatly by connector, none of them the one you need.

-100 kmMantle

The asthenosphere, where rock behaves like extremely serious honey.

-150 kmMantle

Diamonds form around this depth and then get sent upstairs as a treat.

-200 kmMantle

A vault in the rock holding every message you were definitely going to reply to.

-300 kmMantle

A slab of old sea floor sinking through, still damp, still holding a grudge.

-410 kmTransition zone

The transition zone, where minerals repack themselves into tighter shapes under the strain.

-520 kmTransition zone

More water than every ocean combined is locked inside the crystals around here.

-660 kmLower mantle

The lower mantle. Everything below is under pressure it refuses to discuss.

-700 kmLower mantle

The deepest earthquakes ever recorded happen at this depth and nobody is certain why.

-900 kmLower mantle

Last known position of a shopping trolley. Still rolling, still one wonky wheel.

-1,300 kmLower mantle

A landfill of good intentions, quietly smouldering since the Bronze Age.

-1,800 kmLower mantle

The rock down here is packed with everything anyone ever said they would do at the weekend.

-2,400 kmLower mantle

Someone left a light on down here. It has been on since the Cretaceous.

-2,890 kmOuter core

The outer core. Liquid iron, moving fast enough to run the entire magnetic field.

-3,600 kmOuter core

Iron weather. Storms of molten metal, no forecast, no umbrellas.

-4,400 kmOuter core

The umbrella current, circulating forever, not one of them opening.

-5,150 kmInner core

The inner core. Solid iron, about as hot as the surface of the Sun, held together by pressure.

-6,371 kmPast the centre

The centre of the Earth. Technically you are climbing now. We will say nothing.

-7,400 kmOff the map

Out the other side of the arithmetic. The planet ran out a while back.

-8,600 kmOff the map

A suggestion box out here, bolted to nothing at all. Nobody has ever emptied it.

-9,400 kmOff the map

One unopened email from 2011 drifting past, marked urgent, still waiting.

-10,000 kmOff the map

The bottom. There is no bottom, we just ran out of jokes, which is nearly the same thing.

The bottom

You have run out of shaft. That took some doing.

Scroll down

How to play Bottomless

Scroll down, then keep scrolling. The shaft runs from the surface to a punchline, and every so often a marker tells you what sits at that depth. On a phone, swipe or drag the shaft upward. On a computer, use the wheel or the trackpad, hold the down arrow to keep falling, or press space for one big drop. Home pops you back to the surface. Your depth ticks up in the header while you sink and your deepest ever is saved between visits. Press surface whenever you want to stop and you get a card with how far down you got.

Tips

About Bottomless

People are bad at guessing how deep things go. A swimming pool feels deep. The recreational scuba limit is only 40 metres, and the deepest hole anyone has ever drilled stopped at 12,262 metres, which is not even halfway through the continental crust. Bottomless puts all of that on one long vertical scroll so the distances land properly instead of sitting in a table. The real depths were checked against published figures, including the 10,935 metre floor of the Challenger Deep and the snailfish filmed at 8,336 metres that holds the record for the deepest fish ever seen. Below the drilled rock the shaft carries on into things that are not real at all.

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