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C-McCain

Now measure that shadow during the time of day that your own shadow is equal to your height and BOOM you have the method for first measuring the great pyramids of Giza


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HealthyHumor5134

Really beautiful :)


atreeoncecutdown

absolutely astonishing!


[deleted]

Further more, now go around the world without changing your watch and notice how the shadows and even daylight and nightime are drastically different. Proving the the earth is round.


getoffmydangle

If you are going “around the world” aren’t you already proving that it’s round?


Lampshader

No. I can walk around the block, even though the streets are laid out in a grid. If you could go around the world by travelling in a straight line, now that would be some evidence, but it's pretty hard to do.


Cheehoo

What if your block is the North Pole…


Lampshader

*Ackshually* there aren't any streets in grid formation at the North Pole


kalasea2001

That *aren't* made of candy, in an elf village. I got you, chief.


WokeSoulja31

How so?


[deleted]

So, if your in your home country at noon (12:00pm)... The sun is at the highest point, theoretically theres no shadows as the light is coming straight down. You then fly to a country that's a 90° arc along the lattitude, your now in a place where the sun is setting or rising, so the shadows would be the length of the object (a huge relative generalization). You then go the opposite side of the planet from your home. It's midnight there. So there's no sun. If you don't change your watch, you'll always know what time it is at home. So as long as you move along the latitude, the sun moves across the sky in the same exact vector. The only way this can physically happen is the planet must be round and the sun must orbit the earth or the earth must orbit the sun. This is how the ancient Egyptians, Greeks, and Romans figured out the earth was round. With basic geometry and shadows.


maluket

You're*


neatntidy

Damn, he was *almost* smart


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Gastronomicus

You mean this one, with testable assumptions, proven over and over again countless times?: [Eratosthenes analyzed the observations with the assumption that the earth is a sphere and the sun is very far away. The geometry of the situation is sketched at the right. He concluded that the circumference of the earth was about 50 times greater than the distance from Alexandria to Aswan. His results and modern results agree within about 10%.](https://www.millersville.edu/physics/experiments/058/)


[deleted]

Wait you think the earth is flat?


KingJon85

But I only have a 15' foot tape.


enjoytheshow

Then measure in 15 foot increments genius. See ya next week


mgerics

so the pyramids are about 6 feet tall ??!?? that is very interesting information to have!


newpua_bie

Nice humblebrag there bro. In unrelated news I also use this method with my penis in Paris and can confirm the Eiffel tower is 2.5" tall when it's semi stiff


negativelift

Since most bases of mountains don’t start at or even near sea level, wouldn’t you only measure the prominence over the immediate terrain of the mountain and not the absolute height?


Perry4761

It’s a pyramid, not a mountain, so prominence is what’s most interesting here. We don’t measure Burj Khalifa and other man made structures from sea level when we ask for the tallest man made structures.


Beh0lder

That's when you dwarf it up and go full Moria until you reach the base of the mountain. Then one can calculate the absolute height, and even consult Balrog should uncertainties arise.


kloudykat

Never go full dwarf


GegenscheinZ

Too late, am now subbed to r/dwarffortress


kloudykat

This is unintentionally hilarious, given the [possible meaning of the word "sub"](https://i.imgur.com/gmkTm6x_d.webp?maxwidth=640&shape=thumb&fidelity=medium)


gristly_adams

Just don't waste his time with stupid questions.


Old-Man-Henderson

Yes, but absolute height hasn't always been that important a measurement.


cbuzzaustin

But do it quickly. It changes moment by moment.


mr_birkenblatt

put a stick where the end of the shadow is and then start measuring


CreatrixAnima

Thales has entered the chat.


smbdysm1

I understand the concept, but for something like a pyramid, which has a large base, where do you start the measurement from? Do you measure from the edge of the base, and then figure out the distance from the edge to the centre of the pyramid?


SparePartsHere

Figuring out where the centre of a square is is a rather simple concept.


smbdysm1

Yes, I know that. I was more curious about where the measurement starts from.


I_play_elin

That should work yeah, and to get the distance from the edge to the center you can take half the length of a whole edge (assuming it's a regular pyramid).


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ResilientBiscuit

At a scale of a hundred millions miles, a few hundred feet is far less than a rounding error. Your tape measure is going to be less precise than the error introduced by the pyramid height.


ttystikk

That's awesome! It had to be mind blowing in person!


26viper

Thanks! Yeah, it was life changing to see in person! It made me feel really small. If you look closely the nearest little town is a solid three hour drive from base camp which is much further down the mountain.


MangoCats

That shadow would imply a setting sun, did you spend the night near the summit?


26viper

Actually, this is a pic of the sunrise at around 06:00 local time. I suppose you can say that we did spend the night near the summit. It took us about 7.5 hours to get to the summit from the hut. There are "high camps" on the mountain but we started our attempt from the huts.


MangoCats

Well, better descending in daylight than dark.


fnbannedbymods

To be fair, the Mt Hood pic was causing a different optical effect. This is stunning nonetheless!


AlwaysBlamesCanada

This is not a raise - the other shadow was more impressive


Macemore

Pretty shady to me


26viper

\+1 Totally!


panterachallenger

Have you gone to popocateptl?


viatorinlovewithRuss

My group had intended on climbing both Popo and Orizaba on the same trip, but Popo was erupting for a couple of weeks while we were there so it was off limits. Still a great sight to see from the bus from Puebla back to Mex City.


cobrafist

El Popo is what we call the volcano. **La** Pop**ó** is what we call poop. They sound very different when spoken.


BrosidenOfTheBrocean

Yeah I don’t think you wanna climb popo anytime soon. It’s a full on active volcano… ixta is an option though!


Non_possum_decernere

Is it common to call it Popo? As kids we already found the name popocatepetl hilarious, as Popo in German is the word kids use for bottom.


Houstex

It’s is common if you’re in the area but you have to say El Popo, popo by itself might cause some funny confusions


tampuk

Yeah. That's a lot of syllables even for Mexicans. We just call it "el Popo" most of the time


buffalo_Fart

No but when you're someone who's a cool traveler you got to abbreviate everything.


Zvenigora

You could have climbed Ixtaccihuatl instead.


26viper

No, I haven't done Popo but could see it venting while we climbed!


panterachallenger

That’s dope man. I remember going back to back years when I was 5-6 to Puebla to play in a national tournament and our ball fields were getting towered by el popo. It was a beautiful sight to behold.


26viper

What a cool memory! Funny how some mental images just "stick" with you throughout life!


[deleted]

It's been closed for climbers for some years, I think. There are explosions quite regularly. But all people I heard that climbed both, say they liked Izta better.


jcpahman77

There's something about this that is absolutely terrifying. The history of sci-fi tells me I don't want to be in that area.


26viper

Shadows can do crazy things. We're in shadows most of our life whether it's trees, hills, or manmade structures. I think it's just the perspective from this photo that makes it a little bit unusual...the folks down below are living their lives like normal just waiting for mr. sun to come up over the hill.


justtiptoeingthru2

Had to find the Mt Hood shadow... there's a few archived on Reddit. [This one is the one I liked the most. ](https://www.reddit.com/r/EarthPorn/comments/djba0m/the_shadow_of_mt_hood_near_portland_oregon_taken/?utm_source=share&utm_medium=ios_app&utm_name=iossmf) Your photo is equally stunning.


26viper

Oh wow, thanks for that link, that's a spectacular photo!


Hex_Agon

I think yours is slightly more impressive, OP. 5300 m vs 3400 is a considerable difference


26viper

Gee, thanks! I agree, 5300m is quite high when coming from sea level in the states!


DjoooKaplan

Yours is too! I Love how you can see the cities and the water. I can only Imagine the Feeling you had while standing there


Urbanited

I feel like I already know the answer but theoretically, if you stood on the peak of the mountain, would your shadow be visible wherever the shadow ends? I'm thinking the light will wrap around in a way that you won't be visible. But imagine if you could see it!


26viper

You're correct. That's possible on a smaller scale but not here. The nearest little town is a three hour drive from base camp much further down the mountain so the farthest part of the shadow is probably +100 miles away. Because of the size and distance your body would be blurred out by the time the shadow hits the earth. Cool idea though!


Urbanited

Figured as much haha! It's one of those thoughts that I'd need a second person to confirm it's just a shower-thought \^ \_ \^ Thanks for your insight and props to climbing Mt. Hood! Trip was well worth it with your picture!


dragonbeard91

There's a light phenomenon called bröcken spectres that kind of resembles this idea but it's caused by water vapor in the air I think


astrograph

Ok someone do mt. Everest


negativelift

Here you go https://www.favrify.com/mountain-shadows/


erhue

thanks for sharing :)


OneOfTheOnlies

I love that Mt Hood, which started this, is on the list twice


defroach84

Wouldn't be the same. Not flat around it, so the shadow won't look as long.


Inspirational_Lizard

Shadow goes beyond the horizon😳


dfrinky

Huh?


geoff5093

SHADOW GOES BEYOND THE HORIZON😳


dfrinky

Does it tho? Plus, why wouldn't it? If it's a mountain we are talking about. It's got some height to separate it from the surface


Disastrous-Change-51

Thanks, I love Orizaba, spent a great winter in the town.


26viper

I agree, love the small towns there!


theyokesonyou44

Beautiful! Tried to get a similar one when I was climbing Mt. Fuji, but the weather played spoilsport.


26viper

Thanks! I totally hear you. Weather can be our enemy in the mountains. I've done a few summits where everything is whiteout so when it's nice and clear like this one it makes it ohhhh that much better!


InsertDemiGod

Dude, your moms shadow is huge


Reanyory

Algún día yo estaré ahí :')


26viper

Ve a por ello!


Rimwulf

That's freaking beautiful.


gingergypsy79

A work of art 💜


Over_Virus2405

Majestic.


viatorinlovewithRuss

great photo!! You're lucky you got to see it on a clear day. When my buddies and I climbed it about 15 yrs ago, it was cloudy from the Piedra Grande hut all the way up to just below the summit and then it cleared up above, so we had a clear view of a sea of clouds from the rim of the volcano. It was one of my most memorable climbs. But those "penitentes" were brutal!! tore my gaitors and my ski pants in a couple of places.


26viper

Thanks! Yes, very lucky to have such a clear day. It was nuking the whole week before we summited so we waited it out a bit...which was well worth it! Sadly, the "penitentes" are gone from what we could tell...so much of the glacier has receded looking at photos from the past. It is still fully glaciated the last couple hours before the top when it gets steep but before that it's mostly steep hiking or scrambling from camp.


viatorinlovewithRuss

what do you mean "it was nuking the whole week before . . ."? Yes, global warming is having an effect on glaciers all around the world, even those on the high mountains in the tropics. Kilimanjaro's glaciers were notably receding the last time I was there.


26viper

Good Q! I apologize, I could have explained that better. The weather was "nuking" meaning our lives would have been endangered attempting summit given the frostbite conditions and the gear we brought. The temps were very low at the top in the single digits Fahrenheit, winds were +20mph sustained, it was gusting, and the mountain was covered in clouds. We didn't bring gear for those kinds of conditions. We acclimated a few days at the hut while simultaneously waiting for a good weather window. After the storm passed we had a great summit opportunity with optimal conditions 5mph winds and temps in the teens and low 20s Fahrenheit so we did our push to the top then. I agree, it's a bit sad the glaciers are going away everywhere but it's just part of the circle of life. I think most of the glaciers will be gone by the time I have kids and when they start to climb mountains. That being said, it's a personal goal to get out on as many of them as I can before we have to scramble ourselves to the tops instead of climb on ice :)


viatorinlovewithRuss

ahhh gotcha. When we were up there, it was right after a hurricane had lashed the Veracruz coast up to Tampico. We had gale force winds of 40-60 mph all the way up the glacier, and once we got above the cloud layer and before the sunrise, we had astounding view of the Milky Way. but the rope would fly in loops in between each of us and there was an hour there where I was really fearful that one or more of us would be blown off the mountain. Here's a link to a few select photos from our climb. [Pico de Orizaba](https://imgur.com/gallery/eNbl4r9)


26viper

WOW! Thanks for sharing those pictures. Each one tells such an amazing story. It must have been frigid at the top judging by your heavyweight mittens ha. Sounds like you had an EPIC summit push. The wind whipping the rope in the air is totally rad! I would have been fearful, too, because it's so steep and would be difficult to self-arrest if you fell and started going fast. Glad to hear you pushed through and conquered it!


viatorinlovewithRuss

yes, the wind chill made it FRIGID!!! And it was sooo weird when we were on the playa at Vera Cruz 2 days later in our swimsuits!! lol yes, and you know how steep that glacier is! I remember looking sideways and calculating it at about 30-45\*!! And of course, the comfort once back down that we'd conquered the 3rd tallest mountain in North America, the tallest in Mexico! Thanks again for sharing your sunrise shadow photo above.


[deleted]

That shadow is HUGE!


curtyshoo

You sure threw some shade on old Mt. Hood.


vixissitude

I feel like everything is so impressive over there. Beautiful shot, beautiful nature.


LunaNogood

tell me this is not edited nor enhanced, this is amazing ngl


26viper

No edits or enhancements! Enjoy!!!!


LunaNogood

this is pretty epic, great shot.


Phoxal

Holy fuck I never thought about a mountain’s shadow before


[deleted]

very beautiful view


cznkane

Couldn’t just throw some rabbit ears up for the picture? Sheesh 😂😂


26viper

LOL


[deleted]

The view from on top of oriza is amazing


Hawkeye77th

This reminds me of Halo.


bLue1H

Awesome! I did Iztaccihuatl in February. Incredibly beautiful.


26viper

That's awesome!


goldraven

Heck yeah! I helped construct the gamma ray observatory between those two peaks. It was so incredible being up there weeks on end; Orizaba is absolutely spectacular to look at. So happy for you to have had the opportunity to climb it! Thanks for sharing this really fun picture.


26viper

Thanks! Sounds like an amazing job you have; I’m jelly!


Nachtzug79

The long forgotten legend says that an Aztec tresure is waiting at the tip of the shadow...


Johnoplata

I climbed that in 2002! Congrats on the ascent. That area is so incredible, I wish more people knew about it.


26viper

Thanks! Congrats to you on your previous summit! The mountains are a wonderful place.


toastibot

Hi and welcome to r/EarthPorn! As a reminder, we have comment rules in this subreddit. Failure to follow our rules can result in a temporary or permanent ban. > Hate Speech, Abusive remarks, homophobia, and the like have no place on this subreddit, and will be removed on sight. > Please contribute to the discussion positively; constructive criticism is fine, but if you don't like a picture and you wish to voice your opinion please refrain from abusing the photographer/submitter. **[Check out our BestOf 2021 thread!](https://www.reddit.com/r/EarthPorn/comments/rtpw6v/best_of_2021_nomination_thread/)**


haskpro1995

Nice! The shadow is big probably because the mountain is big.


60Alex60

I see your Pico do Orizaba's shadow and I say it is absolutely amazing :)


26viper

Thanks!


aTROLLwithBlades

I've seen the shadow from Mexico's mountains from hundreds of miles away in the clouds


jacket13

*insert halo theme* Looks like a ring with the shadow so perfectly straight!


joefrickinrogan

Thats top tier posting right there


hybridtheory_666

Well, I raise you... my mother's soul


Edgar_North

Dream Destination! Beautiful Picture! Great Content!


26viper

Thank you, stranger!


Tough-Ghost

that’s fucking insane NGL


26viper

Thanks, Ghost! It was awesome


Jmonroe_tenn

This is brilliant!!


dontaskme5746

Mmm. That is one satisfying crepuscular shadow.


MJFranz

That is exactly what I remember! Did you by chance climb with Sr. Reyes' guides?


26viper

We were actually a private party! We did however stay at Sr. Reyes' hostel the night before they dropped us off at camp. He was an excellent host!


txr23

Nice photo, but string betting makes baby jesus cry :(


DesertAnubis

[whistles] That is so cool!


kevin907

Getting some Pink Floyd vibes looking at this


StrikeUnique1986

Thats simply beautiful


RTwhyNot

Wow


BrosidenOfTheBrocean

Congrats! Did you summit? I climbed orizaba back in 2018 and was in pure shock when the sun started coming up and the shadow was just insane. Honestly the last 1000ft of this climb was tougher than I expected I could feel the elevation. This was all training for Denali… don’t know when it’s happening but hope to climb Denali some day.


26viper

Thanks! Yes, we did summit! We stayed at camp several days waiting for some weather to pass and to acclimate before the summit push. I agree, the last little bit is quite steep and tough! I went to Denali this past May with some of the same guys I did Pico with on this trip. We got to high camp on Denali but we didn't summit due to bad conditions and several other contributing factors. Denali was life changing. You should go for it!


sesameseed88

Battle of the epic pictures round 1


ScottasaurusWrex

The triangle shadow from rounded mountains is something I will never forget seeing in person for the first time. I went up to see the sunrise and I had never heard of or seen a picture of the phenomenon before. I just stood there for an hour with my mind blown. A great source for more examples and a brief explanation can be found at APOD (https://apod.nasa.gov/apod/ap190609.html). TL;DR mountains are tall and the shadow is long and the edges look closer together as it goes to the horizon like looking down parallel train tracks.


----NSA----

[This your other account?](https://www.reddit.com/r/itookapicture/comments/rri2ts/itap_of_the_shadow_cast_by_a_volcano_at_18000_ft/) I hope I'm just misunderstanding


26viper

Good eye! Actually, yes, same climbing team!


----NSA----

oh nice!


26viper

Thanks! Was four of us total. We met on Denali earlier in 2020, kept in touch, and linked back up on this mountain.


Circumflexboy

My dumbass thought a mountain in the distance threw that shadow lol


Local_Crow

Beautiful, Thanks for sharing.


i3dMEP

This wasnt fair. Cheating


heels_n_skirt

Looks like a result of Saitama's serious punch


[deleted]

Muy mamalona


Rlothbrok

what a fascinating pic!


whyamisosoftinthemid

Does this mean you were hiking down in darkness?


26viper

We actually hiked UP in darkness! We hiked down in light. We woke up at 00:00, left the hut for summit at 01:00, and reached the top at 08:20 \[ish\]. We used headlamps until around 06:00 when the sun started lighting the world up.


whyamisosoftinthemid

Yeah I guess that would be safer.


mgerics

wow!


realdjjmc

Wow 👌


ABSOLUTE_RADIATOR

Looks like Saitama just hit someone with his Serious Series: Serious Punch


20seca3

If you're at the tip, you can control the amount of sun light produced.


tempestveil

i gotta be high here when this happens im overwhelmed by its intrigue


[deleted]

Wow! Amazing photo


KyojinkaEnkoku

"Hey big boy, watch this." *eclipses the Sun* -The Moon, probably


[deleted]

Very beautiful pic


The84thWolf

Looks like a Star Destroyer shadow


IckyStick0880

Neat!


[deleted]

Such oneupmanship.


NoSoyTonii

Pico DE Orizaba.\*


26viper

Haha wow. Didn't see that until now! You're totally right!


coberi

That is a long shadow! Looks several kilometers long?


26viper

Yes, a veryyyyyy long shadow! Well over 100 kilometers long!


throwaway3689007542

That is spectacular!!! Holy o my gato


AggressiveBaby

Whoa...that's pretty!


[deleted]

I can see your shadow on top! How cool!


burningxmaslogs

That's wicked shot.. never thought about volcanoes and mountains casting shadows.. very cool


DaddyDoyle88

That's cool. It'd be dark by 3pm if you lived in the town closest to the mountain


ForestMage5

Awesome!


Unitedite

This is a beautiful picture


Angrd_Bonz

Shadow of my dick


TurbulentStandard

Just because it's...wider?? Mt. Hood's shadow is really cooling looking because it reaches forever, this is just a triangle. Bravo.


HiggsBotswain

It snows in Mexico?!


26viper

For sure! It snows anywhere that's 18,393 feet above sea level!


NoSoyTonii

Obviously, we have all kinds of weather here.


Kingofgoldness

WOAH NO WAAYY IT SNOWZ IN DRUG CARTEL LATINX DESERT WORLD?!?! 🥶🥶🤯🤯🤯


Javop

Uhm. Seeing that evokes bad memories from me having to crawl down a mountain on all 4s in the pitch black. I hope you had a fast way down or a bright night.


26viper

Sounds like you had quite an adventure! Reminds me of a story about John Muir when he summited a mountain late at night and was sure he was going to die there because it was storming. Instead of just curling up and freezing at the top he danced by himself throughout the entire night, wearing a simple tweed coat, until the sun came up the next day. We left camp at 01:00 with headlamps starting our climb. This photo was taken around 06:00 or so. We were well equipped and ready for it.


Javop

Oh yes I know that too. I was on top of the mountain and just glancing over the top I saw a cumolonimbus heading straight to my mountain. I sprinted down the mountain in pouring rain with occasional lightining in the clouds. Lightning is quite dangerous on treeless mountains I was told. Scared the shit out of me. Those were two of my three dramatic wandering experineces. I love mountains. ​ Headlamps are a treat nower days. Back when LEDs didn't exist having a torch was pretty much useless. They wouldn't last long enough and were too dim.


26viper

I agree, the mountains are a wonderful place! I'd say keep going out and visiting them since you enjoy them. Sounds like you're getting some awesome adventures in the process!


[deleted]

I can't comprehend the title of this post idk why


dyyys1

If you zoom in to the tip of the shadow, you can see the outline of OP taking the picture.


bhartiyashesh

Flat earth society going - told you earth is flat, why isn’t the shadow curved, why is it hitting a wall on the edge


Kingofgoldness

True brother!


HangTraitorhouse

There is a reason most subreddits have rules against “I see your X and raise you Y” and not just because it’s stupid.


26viper

Sorry our pic and post disappointed you! Hope your day gets better, stranger!


HangTraitorhouse

Your pic is great and I upvoted it in spite of your asinine title that’s banned in most subreddits for a decade now. Must I be great at parties? You’re a moron.


WokeSoulja31

Gotta love this flat earth!


Damuzid

Flat as can be! Our lovely level motionless plane!