Hot answers tagged

81

Without acknowledging any of the conditions actually present in the church, wood fires can get much hotter than 600 °C. The maximum temperatures measured within the pile were of the order of 800, 1000, and 1200 °C for piles composed of 1.27, 2.54, and 9.15 cm sticks respectively, although the maximum temperatures for a given size stick appeared, from ...


53

Probably yes: According to at least one expert, the temperature in the Notre Dame fire must have been extremely high, and probably exceeded 600°C. Yesterday the Süddeutsche Zeitung, one of Germany's most reputable newspapers, published an interview with the director of the German Technisches Hilfswerk (the Federal Agency for Technical Relief) and former ...


49

The first image is legitimate. It is of a Paradise CA neighborhood after the Camp fire raged through the town (KTVU). The third image definitely is not of Paradise CA. This image was used three months prior to the Camp fire in support of a conspiracy theory regarding the use of directed energy weapons in these fires (conspiracy theorist). Addressing the ...


33

Other examples? There's a list of buildings which have collapsed due to fire here: Historical Survey of Multi-Story Building Collapses Due to Fire. Scanning this document, to include only building which are made of steel (and not e.g. reinforced concrete), shows only two: Alexis Nihon Plaza Montreal, Canada Steel frame with composite steel beam and deck ...


26

Wood is a perfectly acceptable and common material used in metal forging even more so when it becomes partially combusted (charcoal). What really determines the heat though, is the amount of oxygen it can get. If there were medium-high winds blowing on the building it could have melted even steel beams. Reference: https://youtu.be/x_wYozMBWNk In that ...


26

A report from 1987 had 4/5 firefighters surviving entrapment by using a fire shelter. This report was found at the Wildfire Lessons Learned Center, when searching for events with deployed fire shelters. In this case shortly after they deployed their shelters water and fire retardant was dropped on their position by helicopter, and they were rescued at 45mins....


16

The entire type of assertion "if X is burning, and X is said to burn at Y temperature, then the fire cannot melt Z which melts at Z temperature" is fundamentally flawed at at least two levels. The burning point of a material is the usual minimum point where it starts to burn, but not the maximum temperature of a fire involving that material. The temperature ...


15

Yes, it happens. Here are some cases where a laptop was identified as the cause of a fire by officials: House burns down; laptop left on cardboard to recharge overheats, catches fire Laptop starts fire in dorm; 90 students displaced Laptop left charging on bed starts fire There's more. Search Google News for 'fire was caused by laptop computer'


15

Scientifically, i feel this is not possible to happen, since all laptops have a thermal sensor, which when crosses a certain threshold, just turns the laptop off, and i feel just the heat is not sufficient to start a fire, without any actual source of fire like a spark of some kind,an electrical short or a chemical reaction. Is my understanding ...


14

The video in question comes from this webcam: Viewsurf: Cathédrale Notre Dame. This webcam only takes one 60-second video every hour, at 5 minutes after the hour (17:05, 18:05 etc). Here's a Youtube video which shows snippets recorded at 17:05, 18:05, 19:05 etc.: Viewsurf Notre Dame Webcam: 20190415 - 17:05 to 21:05. The flash occurs at 0:23. It's pretty ...


11

No, staring at a flame will not slow brain activity. First of all, let's define brain activity, and see what 'slow' would mean in this context. I had a lot of trouble finding a source that's neither completely technical nor completely nonsensical. In the end I opted for a combination of the two. Here is a semi-nonsensical one from which I am quoting the ...


11

First of all, Google can find quite a lot of background on the dispute between Steve Lipsky and Range Resources Corp. This article is a summary of the situation, where Range Resources Corp. has been drilling for gas close to Lipsky's estate, after which Lipsky is blaming the company for ruining a well, from which he used to get his fresh water supply. It is ...


10

Measuring forest-fire danger in northern Idaho mentioned a study made in Finland, which found a correlation.


8

No. The link is to an oil trading company, not a technical source, and the reference provides no source for the information. "Maximum burning temperature", is not a standard measure for specifying jet fuel. Jet fuel specifications from ExxonMobil list many requirements and test methods, but do not mention "maximum combustion temperature", or any similar ...


8

In short, yes. Reference #1: Recent history has seen an increasing trend of record-breaking wildfires on public forests and grasslands... Why so many large fires? “The most extensive and serious problem related to health of national forests in the interior West is the over-accumulation of vegetation, which has caused an increasing number of large, ...


5

Not all of Brazil is Amazon. Year 2019 to 26 August, Brazil has had an 80% increase in satellite detected fire spots from the same period in 2018. For the Amazon portion of Brazil the increase over 2018 was 128%. The raw data for the whole of Brazil (01 January through 26 August) is: | Year | Amount | |______|_________| | 1998 | 39,197 | |...


5

The argument from the Freakonomics article is somewhat problematic. It seems to boil down to the idea that, given that other things such as building code changes must have improved in ways that prevent fire deaths since smoke alarms were widely adopted, shouldn't the rate of deaths have plummeted instead of continuing the existing downward trend? The first ...


4

There was the infamous 2004 - 2006 Dell Laptops that had to be recalled because they literally caught fire. 4.1 million Dell batteries had to be recalled because of faulty batteries http://news.cnet.com/Dell-to-recall-4-million-batteries/2100-1044_3-6105486.html


4

A close friend of mine's father lost his home the other day from careless placement of a laptop on a bed. http://manassas.patch.com/articles/fire-causes-40-000-in-damages-to-manassas-home


3

I don't have any knowledge of this specific case, but according to the fire official quoted in this article, rescuing animals from burning buildings is a routine part of firefighting practice. I see no particular reason to doubt the present claim.


3

Yes, higher temperatures leads to more wild fires. Article from a journal says so: On page 940 of this issue, Westerling et al. (4) come to a similarly discomforting conclusion for wildfires. They show that warmer temperatures appear to be increasing the duration and intensity of the wildfire season in the western United States.1 The paper it refers to ...


2

Overheated laptop blamed for P.E.I. house fire MONTAGUE, P.E.I. -- An overheated laptop computer sitting on a bed is believed to have started a fire in P.E.I. that has left a mother and her two children homeless. RCMP say the fire started just before 6 a.m. at a residence in Montague. April 17, 2013


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