Talk:3086: Globe Safety

2025-05-08T14:11:47Z

104.23.170.118: False Precision

Hello! First time i got to a comic first --[[Special:Contributions/172.69.176.76|172.69.176.76]] 06:17, 8 May 2025 (UTC){{unsigned ip|104.23.175.202}}
:Well [[269: TCM|first of all]] remember to sign your comments :-). But congratz... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 05:42, 8 May 2025 (UTC)
::Sorry. I now realize that that was an extremely trollish thing to do. --[[Special:Contributions/172.70.92.140|172.70.92.140]] 07:09, 8 May 2025 (UTC) ٠ـ٠
:: Also i MAY OR MAY NOT have permanently altered the editing process of this talk by including arabic numbers in an emoticon.{{unsigned ip|172.70.92.140|07:09, 8 May 2025 (UTC)}}

I believe he indicates that a globe is made by making a copy of the Earth, and then compressing it until it fits on a desktop. Hence having the same mass and thus the same Schwarzschild radius as Earth. I have changed the explanation a bit because of this observation.--[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 05:42, 8 May 2025 (UTC)

Gotta wonder what kind of a desk could support a desktop globe that weighs as much as the Earth --[[User:StumbleRunner|StumbleRunner]]
:[...] desk? Convince me that such a globe wouldn't plunge straight through the Earth's crust and into the mantle. I sense a marketing problem. [[Special:Contributions/172.71.147.69|172.71.147.69]] 07:07, 8 May 2025 (UTC)

Radius. <s>Is there a typo in the comic where 7/10" should be 7/20", i.e., 0.35" as later written? Or would a 7/10" Earth collapse into a black hole nonetheless?</s>[[Special:Contributions/172.71.154.129|172.71.154.129]] 06:40, 8 May 2025 (UTC)
:Nope… the Schwarzchild radius is 0.35", which is indeed 7/20", but the measurement shown on the globe is the diameter, not the radius, so 7/10" is correct. [[Special:Contributions/172.71.178.143|172.71.178.143]] 06:49, 8 May 2025 (UTC)

Isn't there also a jab at the weird way USsians use power-of-two fractions for inch measurements? I've never seen something like 7/10" before, it would be approximated as 11/16".[[Special:Contributions/172.71.95.69|172.71.95.69]] 09:18, 8 May 2025 (UTC)
: It isn't a weird USian thing - it's just the historical way that inches (being a non-metric unit) were divided. The same way that an inch is a 1/12 division of a foot, which is a 1/3 division of a yard, etc. [[Special:Contributions/141.101.98.83|141.101.98.83]] 10:23, 8 May 2025 (UTC)

I think we have a bigger problem: there are millions of globes on Earth! I haven't done the calculations, but that might be enough to turn Earth into a black hole already; if not, I expect at least it would turn it into a star. --[[Special:Contributions/104.23.190.34|104.23.190.34]] 11:44, 8 May 2025 (UTC)

BTW. what would be a 12-inch object with a mass of Earth? Neutron star? Neutron planet? Neutron meteoroid? -- 12:46, 8 May 2025 (UTC)
: Crunching the numbers (thanks to Copilot.microsoft.com):
:* A sphere with a 30 cm radius has a volume of about 1.13×10<sup>-2</sup> m³.
:* Compressing Earth's mass into that volume gives a density of roughly 5.3×10<sup>28</sup> g/cm³.
: That is way way denser than a neutron star. It's doubtful that such a sphere would remain at that density; it would likely explode immediately, or if prevented from doing so, continue to shrink down past 9mm and become a black hole. {{unsigned ip|172.70.110.59|13:26, 8 May 2025 (UTC)}}

'''False precision: .889 cm?''' Could someone please check "0.35 inches (0.889 cm)"? I'm concerned that this is a matter of {{w|false precision}}, with two significant digits for the customary / imperial system precisely converting to three significant digits in SI (similar to the way people obsess over 98'''.6'''F, which is a precise conversion of the estimate of 37C.). Also, I'd suggest that millimeters are preferable to centimeters. [[Special:Contributions/104.23.170.118|104.23.170.118]] 14:11, 8 May 2025 (UTC)

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Talk:3086: Globe Safety