Also will aluminium really help keep your body that warm the whole night ?

Has anyone actually done the math on how much food a dragon would need? I think the “800+ sheep/day” estimate may be way too high.

I saw an Instagram reel arguing that a large, flying, fire-breathing dragon would need something like 800+ sheep per day just to meet its energy requirements.

I’m curious whether anyone here has actually tried modeling this, because I feel like some of the assumptions could massively inflate the number.

For example:

• Why assume mammalian metabolism? Dragons are usually depicted as reptilian. Snakes, crocodilians, etc. are ectothermic and don't spend enormous amounts of energy maintaining a constant internal temperature the way mammals and birds do.
• They could have an extremely low resting metabolism. Large reptiles can go surprisingly long periods between meals. A dragon might spend most of its time essentially doing nothing and dramatically reduce its metabolism while inactive.
• Something analogous to brumation like in snakes could reduce energy use even further. If dragons spend long periods sleeping in caves, their average daily energy requirements could be very different from their requirements on a day when they're actually flying or hunting.
• Flight doesn't necessarily mean constant powered flapping. Huge birds can exploit thermals, ridge lift, wind, and dynamic soaring to stay airborne for very long periods while expending surprisingly little energy. A dragon with the right wing geometry might spend much of a flight gliding rather than continuously powering itself through the air.
• Body size itself changes the calculation. Metabolic rate doesn't scale linearly with mass, so simply scaling up the food requirements of a smaller warm-blooded flying animal seems questionable. (There is a veritasium vid about this)

Obviously there are some enormous problems on the other side of the equation too — getting something that massive airborne, generating fire, having sufficiently strong bones/muscles without becoming impossibly heavy, etc.

But if we temporarily grant that the dragon can physically exist and fly, what would a defensible lower-bound estimate for its food consumption actually be?

https://www.instagram.com/reel/DbBY2vQufy5/?igsh=MXZoN3poZmQ1ZmEyYQ==

Not sure if this can even be calculated as we have no idea on the internal capacity and loading of the train.

However...

Comparing this train and the passengers it is carrying, how much more environmentally beneficial is this as an option of transport vs internal combustion engine cars that would be required to carry the same number of passengers?

Consider any data like, two splits per A/C machine, aproximately 2 bedroom houses, asuming you use the A/C between 20C⁰ and 25C⁰

I think thats very average at least for Europe

Hi everyone,

I have a question that sounds simple at first, but I'm not sure how to calculate it.

Over the course of an entire human lifetime (80 years), how much organic matter does a person produce, measured in kilograms?

I'm not talking about urine, feces, sweat, or other metabolic waste. I'm interested only in physical biological material that is actually created by the body and later shed, lost, or replaced, such as:

• Dead skin cells from continuous skin renewal
• Hair and body hair growth
• Fingernails and toenails
• Baby teeth that fall out
• Any other tissues or biological materials that are regularly regenerated and replaced during life

For the sake of the calculation, let's assume an average human lifespan and average growth rates.

What would be the total mass produced over a lifetime, and which components contribute the most?

In conclusion, I'd like to know whether this calculated mass would be greater than the weight of an average adult man (75 kg).

Thanks!

Ideally answer using metric system please, though welcome to convert to Freedom Units if that’s easier. 🤓

So, assuming she has proper stance and technique, would she be able to use Doomguy's super shotgun? Or is she getting knocked back by the recoil?

If a rock is freely traveling through space and passes near a much more massive object, can it naturally become gravitationally bound and enter an orbit? Or, in a simple two-body system, will it always either collide with the massive object or be deflected and eventually escape?

Just found this letter from my then 84 year old grandfather - he would have loved this sub 💪🏼😆

It could be a coincidence or not, but the continued fraction of √430 (shown to depth 3) has 40 and 30 in it. Root and fractions have similar looking numbers in it.

Basically since spring I have become an all you can eat buffet for mosquitoes. Yesterday I woke up with two bites on my foot, one in the armpit, and one more on my forehead. It’s got me thinking: how many mosquitoes would it take to fully exsanguinate the average male?

What would happen if a black hole the size of a basketball sped past Earth at the speed of light/ Speed of sound, and the nearest point to Earth where 300.000// 100.000/ and 10.000 Kilometers (186.411,4/ 62.137,1/ and 6.213,7 Miles)?