Facts & Quotes™💡

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The human brain has an estimated storage capacity of around 2.5 petabytes If your brain could record video, you'd be able to store 3 million hours of TV shows. #science

In Finland, newborn babies are sent home with a box containing 60 essential items, including clothes, blankets, toys, a book, and bedding The box itself can be used as the baby's first crib. #countries

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People are afraid to take action and create a better future for themselves because they're too worried about what others will think of them.⁣⁣ Instead of learning how to really make a difference in their lives, they work hard - as everybody does.⁣⁣ The thing is... If hard work alone had helped to create success and wealth, everyone hardworking the 9-5 would have been a millionaire by now.⁣⁣ The key to success isn't working hard.⁣⁣ The key to success is to be able to work smart.⁣⁣ #tips

​​Why do doctors use Veins rather than Arteries to take blood samples? Doctors can and do use arterial blood sampling but usually only when it is absolutely necessary ie. they need an arterial blood sample for arterial blood gas analysis (ABG) to find out how much oxygen and CO2 is in the arterial blood or when they cannot get venous access (for examples in trauma or otherwise seriously ill patients). Venous blood is preferred for number of reasons: - It is easier. Veins are superficial and there are lot of them. If you compress the arm proximally you can see and feel the veins running across the length of the upper limb. If you are taking arterial blood you usually go for the radial artery and you usually have to rely on the pulse you feel (or hear using doppler). Veins also tend to be more tethered if you pick the right spot ie the vein doesn't wiggle away when you try inserting the needle and you don't need to go fishing for it. Veins also have thinner walls which makes it easier to get a needle in. Novices (like myself) may need to use a bit more force to get into the artery and sometimes they push the needle right through the back wall in the process. - Arterial blood samples are more painful for the patient. I haven't had one done on myself but I have heard that even in optimal situation it is more painful than venous sampling. And because it can be more difficult than venous access the doctor may need to do more poking around to get in, which again, hurts. - When you are taking blood from the radial artery you are effectively occluding it. Thus the hand relies on alternative arteries for blood supply. You can do Allen test (compression of radial and ulnar artery to cut of the blood supply temporary followed by release of ulnar artery to see if circulation to return) to ensure that there will be sufficient blood supply while taking blood. In theory you can cause ischemic damage to the hand if the collateral supply is poor. - The arteries have much higher pressure than veins and once you have access the blood will be squirting out (hopefully to your syringe). Once you have withdrawn the needle you should apply pressure to the site for several minutes to reduce bruising. While the blood sample is clotting in your syringe becoming increasing useless. So you compromise between bruising and getting the job done. - When you are having bloods taken it is usually not done by the doctor. Phlebotomists, health care assistants and nurses take large proportion of bloods in both primary care and hospital settings. They generally have not been trained to do (or their job description doesn't include) arterial blood sampling (with perhaps the exception of ICU nurses or specialist respiratory nurses). Thus it requires a doctor, one you may or may not to spare to do arterial sampling when it is not necessary. - When you are having bloods taken at hospital the doctor or nurse usually uses it as an opportunity to put a line in for fluids and medications. Generally speaking drugs don't go into arteries. Unless you want to lose a limb.

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Records are made to be broken. It is in man's nature to continue to strive to do just that. - Richard Branson #quotes

About four hundred million years ago, the tallest organisms on Earth were 24 foot-tall fungus spires. #knowledge

The strength of your hand may tell you something about the strength of your heart. Research suggests the ability to squeeze something well may be associated with a lower risk of heart disease. #health

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​​How different types of Data get stored in form of 0 and 1? 1 and 0 are nothing but just two different voltage levels. You can make computer to understand 1 for higher voltage and 0 for lower voltage. There are many different ways to store two voltage levels. One most basic is as follow:- If you have seen floppy, then you will find a magnetic tape which has coating of ferromagnetic material, this is a type of paramagnetic material which has domains aligned in particular direction to give remnant magnetic field even after removal of currents through materials or magnetic field. During loading of data in the magnetic tape, magnetic field is passed in one direction to call the saved orientation of domain as 1 & for magnetic field is passed in another direction then saved orientation of doamin as 0. In this way generally 1 & 0 data are stored. First of all we will talk about Text Data: Text is generally stored when typed, then there are certain softwares which are called text compilers, which convert text data into a normal code where each character has some ASCII code or better to use Unicode equivalent like character 'A' has its ASCII equivalent as 65 and so on for all characters that are known so that now each of these ASCII codes have an unique binary equivalent i.e, something in form of 1's and 0's 7 bits long and in case of unicode it is about 16-32 bits long, also defined in ASCII and unicode. Then a binary level (machine level) compiler processes the data and returns back the result to our normal compiler to convert the data back to text from binary and then we see the output on our screens. And coming to storage part it is stored in a data file which reserves certain memory for storage of that particular file and again the file is also stored in form of 1's and 0's. Now after covering text data we will talk about Audio Data: Audio is an important thing like text to be stored but the problem is how can we store audio, right? The answer is simple we store it according to frequency where each frequency has certain code in compiler which converts into machine language to store it as explained for text. But how do we know the differences between frequencies? It is also simple as we use microphone to speak we use same principle as audio is converted to an electric analog signal which has different voltages which change with audio frequency and these voltages are what are stored in our computer memory using which we can get back the audio. OK after dealing with audio here comes Video Data: Now we understood audio data and text data storage methods but what about video or pictures right? Well these data are stored according to pixel colours which we generally read about, like 1024×768 pixels like that, but you might ask what are pixels? These are simply boxes having a particular colour for each box, whole of our computer screen output is composed of these pixels, now I think you might have understood how to store these right? If not then it is simple, like above two case here also we will use a hexadecimal code for each pixel colour and store this as explained in above examples. OK we know how to store pictures but what about video? Still simpler, a video is stored in form of a sequence of pictures and now you know what to do i.e, store these pictures in continuous memory blocks until the video is over.

Humble yourself because life can put you in the same situation you made fun of. #thoughts

During WW1, Canadian soldiers exploited the trust of Germans who were accustomed to fraternizing with allied units by throwing cans of corned beef into a nearby German trench When the Germans shouted “More! Give us more…" the Canadians then tossed a bunch of grenades over. #history

Dutch electric trains have been 100% powered by wind energy since 2017. #countries

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Every minute someone leaves this world behind.⁣ -⁣ We are all in “the line” without knowing it.⁣ -⁣ We never know how many people are before us.⁣ -⁣ We can not move to the back of the line.⁣ -⁣ We can not step out of the line.⁣ We can not avoid the line.⁣ -⁣ So while we wait in line:⁣ -⁣ Make moments count.⁣ Make priorities.⁣ Make the time.⁣ Make your gifts known.⁣ Make a nobody feel like a somebody.⁣ Make your voice heard.⁣ Make the small things big.⁣ Make someone smile.⁣ Make the change.⁣ Make love.⁣ Make up.⁣ Make peace.⁣ Make sure to tell your people they are loved.⁣ Make sure to have no regrets.⁣ Make sure you are ready.⁣ #tips

​​Why do we have different Time Zones? Earth spins on an imaginary pole called its axis. Every 24 hours, the Earth makes a complete rotation or one full turn on its axis. We call each full turn a day. Imagine shining a flashlight at a globe. Only part of the globe would receive light, while the opposite side of the globe would be dark. As Earth rotates, different parts of Earth receive sunlight or darkness, giving us day and night. As your location on Earth rotates into sunlight, you see the Sun rise. When your location rotates out of sunlight, you see the Sun set. If we had one single time zone for Earth, noon would be the middle of the day in some places, but it would be morning, evening, and the middle of the night in others. Since different parts of Earth enter and exit daylight at different times, we need different time zones. In the late 1800s, a group of scientists figured out a way to divide the world into different time zones. In order to build the time zone map, they studied Earth's movements. As Earth rotates on its axis , it moves about 15 degrees every 60 minutes. After 24 hours, it has completed a full circle rotation of 360 degrees. The scientists used this information to divide the planet into 24 sections or time zones. Each time zone is 15 degrees of longitude wide. Distance between the zones is greatest at the equator and shrinks to zero at the poles, due to the curvature of Earth. Since the equator is approximately 24,902 miles long, the distance between time zones at the equator is approximately 1,038 miles. The imaginary dividing lines begin at Greenwich, a suburb of London. The primary dividing line of longitude is called the prime meridian. Longitude is the angular distance between a point on any meridian and the prime meridian at Greenwich. The time at Greenwich is called Greenwich Mean Time (GMT). As you move west from Greenwich, every 15-degree section or time zone is an hour earlier than GMT, while each time zone to the east is an hour later. Having different time zones means that no matter where you live on the planet, your noon is the middle of the day when the sun is highest, while midnight is the middle of the night.

The feeling that you’ve experienced an event in real life before is called "déjà vu" If you feel like you’ve experienced it in a dream, that's called "déjà rêvé" #psychology