Questions tagged [physics]

Use this tag for questions about the physical nature of reality and in particular claims that are strictly about the field of physics. Please use specific tags if the question is about other sciences such as chemistry. Also consider to add [electromagnetism] and [radiation] if appropriate.

Filter by
Sorted by
Tagged with
-3
votes
1answer
724 views

Is there a 218-year gap in the dendrochronological oak scale of the late Roman Empire?

There a very controversial study conducted by Petra Ossowski Larsson and Lars-Ake Larsson called "Dendrochronological Dating of Roman Time". If I understood correctly, it states that there ...
36
votes
1answer
8k views

Do trackers hold their ears to the ground?

There is a trope (in movies and cartoons and elsewhere) of Native American (or other) trackers are sometimes depicted as listening to the ground to presumably hear far away horses or other animals ...
-4
votes
1answer
385 views

Is the Glitch In the Matrix subreddit on Reddit real stories? [closed]

Here is the subreddit reddit.com/r/glitch_in_the_matrix Here is a fairly recent example of a story posted to that subreddit https://www.reddit.com/r/Glitch_in_the_Matrix/comments/qdainf/...
3
votes
0answers
414 views

Does Reversing Ceiling Fan Direction Improve Energy Efficiency?

There is an often cited statistic in the HVAC field that reversing the ceiling fan direction can save 10% on heating bills due to air circulation. I would imagine that this is somewhat true due to the ...
7
votes
1answer
22k views

Do water molecules change when you talk to them?

I've heard that saying something nice in front of water changes the water molecules shape into a nice shape and saying something bad in front of it makes the molecules align in a bad order (ugly one). ...
3
votes
0answers
343 views

It is feasible to produce energy at 2ct/KWh using alpha-, beta- and gammavoltaics?

At Tuesdays COP26 session called Economics of Climate Change a company called Infinite Power proposed a carbon neutral way to provide baseload for electricity grid. Their technology claims work by a &...
3
votes
0answers
484 views

Do sparks from a cigarette lighter fix dead zones on touch screen?

There are many forums posts and videos on the "lighter trick" which fixes touch screens dead zones (at least temporarily) such as The YouTube video Nokia Lumia Touchscreen Dead Zone Fix With ...
10
votes
3answers
629 views

Has non-TSI solar output increased over the past century in ways the IPCC climate models ignore?

Prof. Nir Shaviv, an American-Israeli astrophysicist, who argues against Anthropomorphic Global Warming, wrote (6 years ago): As an astrophysicist, I see that the scope of solar effects considered by ...
17
votes
2answers
12k views

Can you breathe underwater using bubbles of air?

A very popular videogame character, which is famous for his sonic speed, is depicted breathing underwater by using air bubbles. Now since I've never heard anyone complaining about this, despite the ...
0
votes
1answer
706 views

Did ancient Hindu texts describe the existence of photons as early as 3100 BCE?

BooksFact.com is a popular Vedic blog (17K YouTube followed, 3K FB followers). In 2014, they published an article that claims that the Bhagavata_Purana was written 5100 years and contains a ...
1
vote
2answers
523 views

Did Newton "invent" Physics to perform better spells? [closed]

I know Atomic Robo is not exactly an authority on real history, but there's also some truth and interesting details intermingled. How true is the statement "Newton invented Physics so he could ...
13
votes
5answers
8k views

Did all iron on Earth come from outer space?

According to the video 9 Shocking Facts from the Quran! Iron is not natural to the Earth. It did not form on the Earth but came down to Earth from outer space. This may sound strange but it is true....
25
votes
3answers
6k views

Is Nikola Tesla the only scientist to successfully create ball lightning?

Related: Is there any scientific proof that ball lightning is real? Someone passed along this The Oatmeal comic about Tesla. It's quite interesting and entertaining. I was curious about a lot of the ...
-4
votes
1answer
1k views

Is the Infinity MG10 a working generator that consumes no fuel?

Infinity Sav are a company pushing a product, the MG10 which is available for pre-order which, they claim, can generate electricity without consuming fuel - i.e. is a free energy machine. The ...
6
votes
1answer
506 views

Does glass allow UV-A rays to pass while blocking UV-B rays?

According to ThoughtCo (and many other sites): Glass that is transparent to visible light absorbs nearly all UVB. This is the wavelength range that can cause a sunburn, so it's true you can't get a ...
-14
votes
1answer
796 views

Do atoms exist, or are they just fable? [duplicate]

A self-published religious tract Χξς by Wayne Ellis Pyron Jr. contains a number of extraordinary claims. On the first page he claims to be Buddha and also the god of the Old Testament. On the second ...
9
votes
1answer
838 views

Is ice that makes a cracking sound safer to walk on than ice that doesn't?

There is a saying in the Netherlands, "Krakend ijs breekt niet". Which translates to something like "Ice that makes cracking sounds does not break". When looking it up online, I ...
30
votes
1answer
6k views

Does Kasardevi, India, have an enormous geomagnetic field because of the Van Allen Belt?

An online magazine says this about Kasardevi: What makes the place what it is, is its positioning on the earth’s Van Allen Belt. Simply put, the region surrounding the Kasar Devi Temple has an ...
4
votes
1answer
765 views

Do lipid droplets in our skin create a laser?

The home page of Dr Jack Kruse, who claims to be a neurosurgeon and "optimal health educator" contains the following paragraph: There is a deep connection between thermodynamics in biology and the ...
-5
votes
1answer
248 views

How could a glass pane and a piece of cloth survive an explosion?

The Tilma of the Virgin of Guadalupe is purported to have survived an explosion from dynamite placed inside a bouquet of flowers in 1921. It is commonly purported that this is a miracle, so I was ...
32
votes
3answers
15k views

Did the Quran predict the speed of light?

It appears to be popular to claim that the Qur'an predicted the speed of light before it was scientifically well understood. Although none of the sources state that outright, that is what they imply. ...
16
votes
2answers
1k views

Can gamma rays on an airplane damage a digital camera?

Rob Hummer gave a talk at Cine Gear Expo 2011 about how film and digital cameras catch light. He makes a handful of extraordinary claims about digital sensors - including a claim that you get dead ...
33
votes
1answer
1k views

In a lightning storm, is it safer to stand near a beech tree than near an oak tree?

According to a German folk wisdom, in a lightning storm one should avoid oaks and seek out beeches. German Wikipedia on Volksweisheit: „Buchen sollst Du suchen, Eichen sollst Du weichen“ Meaning ...
4
votes
0answers
2k views

Is biochemical transmutations of elements possible?

According to a recent press conference Russian scientists have made a breakthrough so astounding it could change the universe as we know it in fundamental ways. The essence of this discovery and ...
1
vote
1answer
759 views

Does UV light harm books?

This Life Hacks answer recommends UV-C lamp to disinfect books from SARS-COV-2. But UV light is one of the main destroyers of books. While UV light can kill viruses, it is not guaranteed. – ...
73
votes
1answer
12k views

Are the claims made by Indian Ministers / personalities regarding ancient Indian inventions true?

In the past couple of years, several Indian Ministers / personalities have made claims regarding existence of modern inventions in Ancient India. Prime Minister Modi claimed that genetic science ...
19
votes
2answers
7k views

Did George Biddell Airy write a paper "On Certain conditions under which a Perpetual Motion is possible"?

George Biddell Airy was an English mathematician. He was Astronomer Royal from 1835 to 1881 According to the Bessler Wheel web-site (a site dedicated to investigationg perpetual motion machines, Airy ...
14
votes
1answer
3k views

Did chemist Glenn Seaborg claim the Oklo reactor was man-made?

The Oklo mine in Gabon is thought to be the site of the only natural nuclear fission reactors. An Instagram video posted by Instagram user matrixdisclosure claims it was actually man-made. Nobel ...
5
votes
1answer
418 views

Have Divine Particles spontaneously appeared in an Indian Ashram?

The Spiritual Research Foundation have some reports of a phenomenon that they have investigated: Ms. Kalyani Gangan, who was there, recollects: “On 5th July 2012 at 7.30 pm, I entered H.H. Dr. ...
10
votes
2answers
1k views

Do 4K displays use more power, because it is hard for the backlight to shine through those super tiny pixels?

I was watching Linus reviewing the 2020 MacBook Air and he said about the competing laptops that 4K was pointless on a 13" laptop and that it just hurts the battery life, because it's harder for the ...
12
votes
2answers
9k views

Does getting a running start increase your vertical jump?

Many people believe that a run-up helps them to jump higher. Is this true? (While it seems natural to do this, I'm having trouble believing that horizontal speed can help one jump vertically.)
-8
votes
1answer
663 views

Is it possible for time on Earth to randomly stop?

On the Glitch in the Matrix subreddit, there are many examples of time stopping. Here is an example: Something felt really weird, my parents were like frozen up (not moving completely) my dad had ...
0
votes
0answers
98 views

Is ceramic window-tinting film the type of window-tinting film that is able to block the most percentage of UV radiations from entering a car?

I read on http://thespokaneshop.com/spokane-window-tinting/different-types-window-tint-film (mirror): Ceramic film is also most effective in its blocking of ultraviolet light from the interior; in ...
-1
votes
1answer
317 views

Can using black glue coating on an umbrella block 99.99% of UV-A and UV-B radiations?

I read on https://smile.amazon.com/gp/product/B07XP321LY/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 (mirror): Black glue umbrella is the newer version sun umbrella instead of silver glue ...
1
vote
0answers
329 views

Do photons have friction?

In the book 1998 biography, A Beautiful Mind, by Sylvia Nasar, John Nash is said to have entered Einstein's office to discuss his ideas that photons have friction. Nash had an idea about "gravity, ...
2
votes
3answers
763 views

Was dark matter invented to explain the formation of primordial stars?

While reading a recent Creation Ministries article Five atheist miracles, I came across this claim: Here is the first problem: how do you get gases formed in a rapidly expanding primordial universe ...
3
votes
0answers
555 views

Can electricity be obtained from neutrino radiation, like a solar cell?

Power Technology magazine published a 2019 article *Neutrino energy: harnessing the power of cosmic radiation. It describes a new energy technology - making solar panels, but for neutrinos instead of ...
11
votes
1answer
1k views

Does aluminum foil safeguard your credit card from RFID attacks?

Evidence against Does Aluminum Foil Stop Identity Theft? Some sources say that if you actually have an RFID-enabled credit card, aluminum foil does the same job, if not better, than an expensive RFID-...
9
votes
2answers
1k views

Does a lack of radiation shadows disprove the Big Bang Theory?

This article from Creation Magazine argues that: If the big bang were true, the light from the fireball should cast shadows in the foreground of all galaxy clusters. It uses some 2006 findings ...
25
votes
1answer
22k views

Does paper blunt scissors?

It is widely believed that paper blunts scissors. But it is difficult to imagine why paper should be more harmful than say hair. Is paper really any worse for scissors than hair, or any other object?
27
votes
1answer
1k views

Is Feynman's claim about the history of measurements of the charge of the electron after Millikan accurate?

In a 1974 speech Richard Feynman famously described an example of confirmation bias in science: One example: Millikan measured the charge on an electron by an experiment with falling oil drops, and ...
3
votes
1answer
563 views

Is the water used in coal burning power plants "never returned to the environment"?

According to a Duke University press release titled Replacing Coal with Gas or Renewables Saves Billions of Gallons of Water: Water consumption – the amount of water used by a power plant and ...
0
votes
3answers
2k views

Is the F-35 aircraft literally invisible? [closed]

Donald Trump said of the F-35 "You can’t see it. You literally can’t see it. It’s hard to fight a plane you can’t see" The video of him saying this makes it seem as if he really believes it can't be ...
44
votes
2answers
8k views

Does wetting a beer glass change the foam characteristics?

Many bars rinse a beer glass immediately before serving. I've consulted with bartenders and Google, and there's some confusion about it. Some sites claim it reduces foaming. Another perk is that ...
46
votes
1answer
13k views

Did/does the US government keep secret papers by Nikola Tesla?

A popular conspiracy theory holds that Tesla invented a free energy device, but that the powers that be prevented him from publishing it, because it would hurt their investments. Of course, free ...
56
votes
2answers
13k views

Did the British navy fail to take into account the ballistics correction due to Coriolis force during WW1 Falkland Islands battle?

In Natural History magazine article, Neil DeGrasse Tyson claims the following: The military normally knows all about the Coriolis force and thus introduces the appropriate correction to all missile ...
32
votes
0answers
828 views

Does cutting paper dull a knife quickly? [duplicate]

This question is a follow-up to "How to test the sharpness of a knife?", my answer to it, and the comments my answer generated. Charlie Brumbaugh wanted to know how to tell when he is done when ...
15
votes
2answers
12k views

Is it not possible to swim in crude oil?

In the book Ship Breaker by Paolo Bacigalupi, one of the characters falls into crude oil and state that one cannot swim in crude oil. The character can swim in water. If true, why would you not be ...
16
votes
3answers
2k views

Do Shade Balls conserve/save water?

In recent headlines here, here, here, it appears that Los Angeles reservoir now has 96 million "Shade Balls" to slow evaporation. I'm skeptical on a number of fronts: How much water went in to ...
16
votes
2answers
2k views

Is there "vastly more matter than anti-matter" in the Universe?

From the Register, talking about the recent CERN antimatter experiment. I'm not concerned with the experiment itself, but rather this claim This, in turn, would help us understand how come our ...

1
2 3 4 5 6