00:00
00:00
Newgrounds Background Image Theme

Dumbuhgly just joined the crew!

We need you on the team, too.

Support Newgrounds and get tons of perks for just $2.99!

Create a Free Account and then..

Become a Supporter!

Knowledge Thread

10,629 Views | 549 Replies

Response to Knowledge Thread 2021-11-21 21:37:41


cutting your cock off is a healthy way to relax and relieve stress

Response to Knowledge Thread 2021-11-21 23:11:12


At 11/21/21 09:37 PM, Piss wrote: cutting your cock off is a healthy way to relax and relieve stress


But does your cock grow back?


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-21 23:47:59


At 8/24/21 05:58 AM, Waterina wrote: If you are very thirsty then you dont have water just drink your urine


Bear Grylls moment

iu_478206_9162816.jpg


Your (former) resident furfag on NG!


"SHAMWOW IS NOT OXYCLEAN, A DOG IS NOT A BROTHER. HOW DARE YOU SHRUG CLYDE'S LOSS OFF SO EASILY." ~ Billy Mays

BBS Signature

Response to Knowledge Thread 2021-11-22 00:35:54


At 11/21/21 11:11 PM, Sobolev wrote:
At 11/21/21 09:37 PM, Piss wrote: cutting your cock off is a healthy way to relax and relieve stress
But does your cock grow back?


no why would you want that

Response to Knowledge Thread 2021-11-22 01:03:39


At 11/22/21 12:35 AM, Piss wrote:
At 11/21/21 11:11 PM, Sobolev wrote:
At 11/21/21 09:37 PM, Piss wrote: cutting your cock off is a healthy way to relax and relieve stress
But does your cock grow back?
no why would you want that


I have lots of stress in my daily life and I would like to cut many cocks.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-22 01:05:59


At 11/22/21 01:03 AM, Sobolev wrote:
At 11/22/21 12:35 AM, Piss wrote:
At 11/21/21 11:11 PM, Sobolev wrote:
At 11/21/21 09:37 PM, Piss wrote: cutting your cock off is a healthy way to relax and relieve stress
But does your cock grow back?
no why would you want that
I have lots of stress in my daily life and I would like to cut many cocks.


i guess you can just cut it a little bit at a time

Response to Knowledge Thread 2021-11-22 01:09:00


If I have any words of knowledge to pass on to anyone, is that the only true thing about this world is the absurdity of people and how the truth of the universe can only be seen when you realize that everyone's opinions are based on whatever is convenient for them.


Eventually sooner or later you have to rise above that shit and just live for you, no one else.

Response to Knowledge Thread 2021-11-22 01:16:53 (edited 2021-11-22 01:31:53)


At 11/16/21 12:39 PM, DamnedByFate wrote:
At 11/16/21 12:18 PM, Sobolev wrote: Here is a fact: Relativity is actually not that hard.
The answer to the question "will the large pile collapse into a black hole?" can be found somewhere in the smaller pile.


Apart from the obvious fact that there are no real black holes in Newtonian mechanics, another objection against it is that there is no known way to reproduce the TOV limit without GR, as mentioned in one of my poasts, which is the minimum mass required for black hole formation from stellar collapse.


Other unsatisfactory aspects include the failure of Newtonian gravity to explain the important properties of a black hole. There is no Newtonian counterpart of the Israel theorem, which guarantees spherical symmetry of the resulting black holes from non-spherical collapses.


N.B. It is possible to create a black hole with smaller masses from other processes.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-22 09:58:02


At 11/21/21 11:47 PM, GraywulfDaDolf wrote:
At 8/24/21 05:58 AM, Waterina wrote: If you are very thirsty then you dont have water just drink your urine
Bear Grylls moment


iu_478386_2278460.jpg


Teacher, goth, communist, cynic, alcoholic, master swordsman, king of shitpoasts.

It's better to die together than to live alone.

Sig by Decky

BBS Signature

Response to Knowledge Thread 2021-11-22 10:35:30 (edited 2021-11-22 10:35:58)


Unruh effect and Hawking radiation


The notion of the existence of a particle actually depends on observer in the theory of relativity. In a stationary space-time, the quantum vacuum of a non-accelerating observer is different from the quantum vacuum seen by an accelerating observer. These two distinct vacua are related by the Bogoliubov transformation.


The result is that even though the non-accelerating observer perceives no radiation in an empty space, the accelerating observer perceives the vacuum as a state consisting of many quantum particles in thermal equilibrium, emitting radiation.


This is the Unruh effect.


An accelerating observer in an empty background is equivalent to a stationary observer near the horizon of a black hole in the presence of strong gravity: They are both non-inertial observers that undergo acceleration and they must both observe the Unruh effect, that is a stationary observer near the black hole horizon must observe the same kind of thermal radiation. The temperature of the radiation depends on the distance from the horizon and is related by iu_478409_779242.png.

This is the Hawking radiation.


The consequence is that a black hole must emit Hawking radiation and gradually evaporates.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-22 21:59:54


God Mode lets you access all management features in one location. God Modes UI is based on Control Panel layout and it's designed to help you quickly configure Windows settings from one screen

Response to Knowledge Thread 2021-11-22 22:49:48


This is how the oceans used to look over 2 billion years ago:

iu_478929_9659510.jpg


Follow me or I'll steal your cookies! ヽ༼◉ل͜◉༽ノ ヽ༼◉ل͜◉༽ノ

Response to Knowledge Thread 2021-11-23 10:21:28


An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid. The term amino acid is short for α-amino [alpha-amino] carboxylic acid.

Response to Knowledge Thread 2021-11-23 23:06:52


Astronomers believe that about two or three supernovas occur each century in galaxies like our own Milky Way. Because the universe contains so many galaxies, astronomers observe a few hundred supernovas per year outside our galaxy. Space dust blocks our view of most of the supernovas within the Milky Way.

Response to Knowledge Thread 2021-11-23 23:10:27


The Coomer depicts a Wojak edit with unkempt hair and an untidy beard. It is generally understood to represent someone with a porn addiction.


iu_479787_4102995.png

Response to Knowledge Thread 2021-11-24 09:19:15


The olfactory epithelium has a layer of olfactory receptor cells, special neurons that sense smells, like the taste buds of your nose. When odor molecules hit the back of your nose, they get stuck in a layer of mucus covering the olfactory epithelium.

Response to Knowledge Thread 2021-11-24 11:41:41 (edited 2021-11-24 11:47:07)


Black Hole "Thermodyanics" (Part 1)

A review of classical thermodynamics:

The zeroth law: The temperature of across an object in thermal equilibrium is constant.


The first law: Change in internal energy of a system = Heat supplied to the system + Work done on the system


Brief description of black hole thermodynamics

A number of laws regarding black holes were formulated. It is noted that there is an analogy between black hole mechanics and classical thermodynamics, as seen below:


The zeroth law of black hole mechanics: Surface gravity of the event horizon (a Killing horizon) of a stationary black hole is a constant. (Surface gravity is analogous to temperature)

(Surface gravity can be interpreted as the force per unit mass required at infinity to hold a test particle at rest near the horizon)


The first law of black hole mechanics: Changes of mass (dE), area (dA) and angular momentum (dJ) of a stationary black hole is related by the formula:

iu_480110_779242.png

(where Ω is the angular velocity of the black hole, k is surface gravity)

Note that the equation above has the same form as the first law of thermodynamics.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-24 22:12:38


The Great Attractor is a gravitational anomaly in intergalactic space and the apparent central gravitational point of the Laniakea Supercluster. The observed anomalies suggest a localized concentration of mass millions of times more massive than the Milky Way. One theory is that it's a confluence of dark energy. Another is that it might be caused by over-density, an area of dense mass with an intense gravitational pull

Response to Knowledge Thread 2021-11-25 00:11:35 (edited 2021-11-25 00:15:57)


At 11/24/21 10:12 PM, Waterina wrote: The Great Attractor is a gravitational anomaly in intergalactic space and the apparent central gravitational point of the Laniakea Supercluster. The observed anomalies suggest a localized concentration of mass millions of times more massive than the Milky Way. One theory is that it's a confluence of dark energy*. Another is that it might be caused by over-density, an area of dense mass with an intense gravitational pull


*Should be dark matter.

Dark matter behaves like ordinary matter in that it attracts other massive objects through gravity. It will also be diluted by cosmic expansion, just as normal matter.


Other theory to explain the apparent effect of unaccounted mass is modified Newtonian gravity. I am not familiar with it though.


Dark energy has negative pressure and is gravitationally repulsive and thus does not behave like normal matter. It is responsible for cosmic expansion. Its density remains constant despite space-time expansion.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-25 11:43:00


an electrical current passing through the body can cause internal damage, cardiac arrest or other injury. Under certain circumstances, even a small amount of electricity can be fatal. A person who has been injured by contact with electricity should be seen by a doctor

Response to Knowledge Thread 2021-11-25 22:57:21 (edited 2021-11-25 23:00:30)


Black hole thermodynamics (Part 2)

Introducing the second law of classical thermodynamics

Entropy is proportional to the number of accessible microstates of a system that satisfies certain macroscopic constraints.

For instance, steam has a higher entropy than water because the former has higher average kinetic energy and thus more accessible microstates (the possible combinations of distribution of energy to individual molecules are more in the case of steam)


Intuitively, a higher entropy is indicative of increased "disorderness".


Second law of thermodynamics:

For a closed system, the total entropy is non-decreasing with time.

An alternative formulation is that perfect heat engines that operates between two heat reservoirs cannot exist (as 100% efficiency would lead to a net decrease in entropy)


Second law of black hole thermodynamics:


Entropy of a black hole is defined to be S = A/4, where A is the area of the event horizon.


Second law of black hole thermodynamics:

The sum of entropy of environment external to a black hole and the black hole entropy is non-decreasing.


As an illustration, assuming no change in external entropy, two black holes that combine to form a new stationary black hole emits gravitational waves. The second law restricts the work done by gravitational waves on surroundings, so that the efficiency cannot be 100%, which is analogous to the classical 2nd law of thermodynamics.


As a second example, the area of a black hole will decrease with time as the black hole emits Hawking radiation. Thus the black hole entropy A/4 will decrease with time. However, the second law of black hole thermodynamics, require the emitted Hawking radiation must have higher entropy to compensate for the loss of black hole entropy, so that the sum is non-decreasing.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-26 09:15:46


Earth's axial tilt actually oscillates between 22.1 and 24.5 degrees. The reason for this changing obliquity angle is that Earth's axis also wobbles around itself. This wobble motion is called axial precession, also known as precession of the equinoxes. It is caused by the gravitational force from the Sun, the Moon, and other planets.

Response to Knowledge Thread 2021-11-26 22:16:41


Computers can only do one task (or process) at a time

Response to Knowledge Thread 2021-11-26 22:22:10


At 11/26/21 10:16 PM, Waterina wrote: Computers can only do one task (or process) at a time


what about multi-cored computers


BBS Signature

Response to Knowledge Thread 2021-11-26 22:23:45


At 11/26/21 10:22 PM, S3C wrote:
At 11/26/21 10:16 PM, Waterina wrote: Computers can only do one task (or process) at a time
what about multi-cored computers


the computer change its process rapidly so that people think that computer can do more process at the same time

Response to Knowledge Thread 2021-11-26 22:51:48


At 11/26/21 10:23 PM, Waterina wrote:
At 11/26/21 10:22 PM, S3C wrote:
At 11/26/21 10:16 PM, Waterina wrote: Computers can only do one task (or process) at a time
what about multi-cored computers
the computer change its process rapidly so that people think that computer can do more process at the same time


that's a single core. multiple cores can operate in true parallel.


BBS Signature

Response to Knowledge Thread 2021-11-27 11:06:55


Turner syndrome, a condition that affects only females, results when one of the X chromosomes (sex chromosomes) is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop and heart defects

Response to Knowledge Thread 2021-11-27 21:19:43


Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. As the cloud collapses, the material at the center begins to heat up. Known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. Three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the Milky Way are paired or in groups of multiple stars.

Response to Knowledge Thread 2021-11-28 10:25:23


Speaking of the second law of thermodynamics, there is a well known paradox, called the Maxwell's Demon paradox, which is as follows:


Suppose you have a box of gas molecules divided into two equal partition (say A and B), that is in thermal equilibrium (and thus the total entropy of A and B is at a maximum). Now let's say there is a demon which can observe the trajectories of all gas molecules. When a gas molecule in A with higher kinetic energy than the mean approaches the wall of the partitions, the demon opens a door and let the molecule escape to B, and similarly when he observes a slow moving molecule in B he opens the door and let the molecule enter A.


If this process is repeated, then A would have less average kinetic energy than B and hence the total entropy of A and B will decrease, in violation of the second law.


The resolution of this paradox is by observing that as the demon gathers information of the molecules, it causes an increase in entropy of the demon which compensates for the decrease in entropy of the gas molecules.


Latest TCs

I mainly focus on WPac and NATL basin.

Response to Knowledge Thread 2021-11-28 10:41:19


The ICD responds to irregular life-threatening heart rhythms from the lower chambers of the heart with pacing that corrects a fast rhythm and promotes a normal heartbeat, or a shock (defibrillation) that resets the heart rhythm to prevent sudden cardiac arrest.