The planet on which we live — the third planet from the sun. It consists of an inner core made of iron and nickel, an outer core of liquid metal, a mantle, and, on the outside, a crust.
Questions tagged [earth]
31 questions
10
votes
2 answers
Did Pangaea exist?
I recently had an argument with a conspiracy theory type who had a bunch of strange ideas about a number of pretty well established scientific phenomenon. One that I had never heard before, nor can I find anything to back up his claim, though I…

zakdegrassi
- 201
- 1
- 2
- 6
7
votes
2 answers
Will China's Three-Gorges Dam slow down Earth's rotation?
Business Insider claims that China's Three-Gorge's Dam will slow down Earth's rotation:
Raising 39 trillion kilograms of water 175 meters above sea level will increase the Earth’s moment of inertia and thus slow its rotation. However, the effect…

J. Doe
- 757
- 2
- 6
- 14
5
votes
0 answers
Does the mass of human made objects exceed the entire biomass on the planet?
An article in Nature, "Global human-made mass exceeds all living biomass" in 2020 has recently gained some attention on social media (see this Twitter thread) possibly because of a striking visualisation of the data.
The claim, if true, is…

matt_black
- 56,186
- 16
- 175
- 373
5
votes
1 answer
Is a third of Earth's land desert?
According to an episode of David Attenborough's Planet Earth (only reference I could find is here), a third of Earth's land is covered by deserts. I just cannot believe this.
Yes, there is plenty of desert, but a third? The Antarctica, Greenland,…

luchonacho
- 254
- 1
- 11
4
votes
1 answer
Does "geopathic stress" cause illness?
There are huge number of articles out there claiming that earth emits some sort of electromagnetic waves. When they are disturbed, it causes geopathic stress to humans which causes various illnesses.
The Geopathic Stress is said to be physically…

skept101
- 1,094
- 9
- 25
4
votes
1 answer
Did granite form instantly?
Is it true that granite has formed in a matter of hours as described (and explained) in "Fingerprints of creation" by Robert Gentry (http://www.halos.com/).
The following simple analogy will show how these polonium microspheres — or halos —…

lakistrike
- 43
- 4
4
votes
1 answer
Do 25 million meteors enter Earth's atmosphere each day?
It is claimed that about 25 million meteors enter Earth's atmosphere each day and most of them burn up and turn into dust.
About 25 million meteors enter the Earth's atmosphere every day (duck!). Most burn up and about 1 million kilograms of dust…

ermanen
- 1,628
- 2
- 15
- 16
4
votes
1 answer
Could meteors have been been formed with lead, and mislead radiometric dating?
The age of the Earth has been determined by radiometric dating of meteorites, by seeing how much uranium has decayed into lead.
How do we know the meteor samples weren't formed with lead already in them, and thus confuse the radiometric dating?…
3
votes
3 answers
Why did the value for "average surface temperature of Earth" change from 15°C to 14°C in some scientific literature concerning climate change?
I recently stumbled across an article from a global warming skeptic stating that the "average surface temperature of Earth" changed from 15°C to 14°C in some scientific literature concerning climate change.
From the article Fourteen Is the New…

DisplayNeth
- 159
- 5
3
votes
1 answer
Evidence for early Earth's atmosphere
What best evidences there are that demonstrate what Earth was like in its early years? According to this video Earth started out with no oxygen in its atmosphere. And according to this link the Earth's atmosphere was dominated by carbon dioxide…

supertonsky
- 131
- 3
2
votes
1 answer
Must the surface of all standing water have a certain degree of convexity (every part must be an arc of a circle)?
According to the Flat Earth Society, the Bishop Experiment demonstrates that it is possible to see Lighthouse Beach from Lovers Point and vice versa on a very clear and chilly day.
So:
IF the earth is a globe, and is 24,900 English statute miles…

kenorb
- 512
- 5
- 21
1
vote
0 answers
Claim that CO2 is less relevant because it is logarithmic
This video presents and claims that doubling the CO2 levels would only increase the global warming by 1%, whatever that means. Now it seems like the graph contains real data, so what is up with the claim? My only guess would be that the heating…

DunkeyKing
- 11
- 1
0
votes
0 answers
Is kabbah the center of the earth
Possible Duplicate:
Question about the Kabbah and the center of the earth
In the following video it is claimed that Kabbah is the center of the earth. What is the scientific proof of this claim. Furthermore what is the proof behind the…

Jose Luis
- 954
- 1
- 10
- 22
-1
votes
1 answer
Did every signer of the Declaration of independence (US) said they believed that men and women were created?
According to this video, Mike Pence said:
every signer of the Declaration of independence believed that men and women were created and were endowed by that same creator.
Did they express such belief?

Sakib Arifin
- 15,705
- 14
- 63
- 137
-5
votes
2 answers
Did America change size in NASA photos over the last 50 years?
Caption: Come on NASA* make your mind up, what does the Earth really look like?
*All images are official NASA pictures of Earth, as released through the mainstream media outlets and major news agencies of the world. Questions: How big is America?…

Rebecca J. Stones
- 7,948
- 6
- 37
- 68