The core of a pencil is made up of a mixture of graphite and clay, which is fired at high temperatures to create a solid writing material. The ratio of graphite to clay can vary, leading to different degrees of hardness and blackness of the marks made by the pencil. The graphite provides the black pigment, while the clay gives the pencil its structure and allows it to hold its shape. The graphite and clay mixture is then encased in a cylindrical wooden barrel, which provides a surface for grip and protects the writing core. The eraser on the end of many pencils is usually made of rubber or synthetic rubber materials.
सिसा कलम के बाट बनेको हुन्छ, होला?
Just For Fun
Best medicine to heal the pain of life is the unconditional funny moments just like in this video 📸.
Its already a wonderful moments to celebrate the birthday of grandparents!!!When it happens an event without any thoughts and plan that's awesome 💓😚🙂!!!
https://youtube.com/shorts/W5qw6FYq3HA
Why a living person sinks and a dead person floats in water?
Why a living person sinks and a dead person floats in water?
This might be one of the most confusing questions that have been bothering a common man. The general idea is that because a man is alive he can make himself stay above the water whereas a dead person has no abilities, therefore, he has to sink. But that isn't the case and there is a perfect explanation for this phenomenon.
Why a living person sinks?
A person only starts to sink into the water when the air in his lungs is replaced with water. Once the body is submerged under the water, then the body stays under the water until the bacteria in the gut and the cavity in the chest can produce enough gases such as methane, hydrogen sulfide, and carbon dioxide in order to float on the surface of the water like a balloon. The building up of these particular gases in a human body can take up to weeks sometimes, also depending on various other factors.
What happens when a person sinks?
When the body is submerged then it does not necessarily mean that all the body parts are inflated at the same time. First, the torso part of the body which consists of most of the bacteria get bloated more than the head and the limbs. The process of buoyancy comes into play now. The parts of the body which are most buoyant rise first, leaving the head and the limbs to be dragged from behind the chest and the abdomen. Since the limbs and the head can only drape forward from the body, the corpses tend to rotate such that the torso floats face-down with the arms and legs hanging under it.
Most of the dead bodies float this way, but there are also exceptions. The smaller the hands and legs are, then the more likely it is for the corpse to float facing up. If a body stays on the surface of the water for a long time then it will release the gas that been built up and then it will sink into the water once again. Decomposition continues underwater and then more and more gas is collected and the body may start floating again. This is also known as a “re-float” in terms of rescue workers.
Symptoms of COVID-19
COVID-19 affects different people in different ways. Most infected people will develop mild to moderate illness and recover without hospitalization.
Most common symptoms:
fever
dry cough
tiredness
Less common symptoms:
aches and pains
sore throat
diarrhoea
conjunctivitis
headache
loss of taste or smell
a rash on skin, or discolouration of fingers or toes
Serious symptoms:
difficulty breathing or shortness of breath
chest pain or pressure
loss of speech or movement
Seek immediate medical attention if you have serious symptoms. Always call before visiting your doctor or health facility.
People with mild symptoms who are otherwise healthy should manage their symptoms at home.
On average it takes 5–6 days from when someone is infected with the virus for symptoms to show, however it can take up to 14 days.
For informational purposes only. Consult your local medical authority for advice.
#Important questions for class12
Here are some important model questions for class 12.Which is going to held from 9th mangsir 2077.
Subscribe to:
Posts (Atom)
जाडो मौसममा हामीले सास फेर्दा किन वाफ बनेको देखिन्छ ?
तपाईं जाडोमा आफ्नो सास देख्न सक्नुहुन्छ किनभने जब तपाईंले चिसो वातावरणमा न्यानो, ओसिलो सास फेर्नुहुन्छ, तपाईंको सासमा रहेको पानीको वाष्प द्र...
