“I am sorry,” she said as if to put period to our long argument. But the look in her eyes. I had never seen it before. For a girl as gentle and kind as her, she looked vicious. Her eyes were focused right at me. There was an awkward stillness in them. She kept her eyes on me, her head a bit slanted, her arms crossed, as I reached the door. “I mean it,” she said, “I shouldn’t have hurt you.” I turned around feeling a bit of guilt in her voice, but all I saw was a ferocious animal with stone eyes. I reached for the handle. I knew her sorry was nothing but a formality. She would attack me again, whenever she deems it necessary. But I left the room hoping time would make her realize her mistake. As time, itself, is a great teacher…
I knew I had to clean all the tiny cob webs that had suddenly appeared on every wall in my house. So, I took my cob web cleaner in my hand and headed to complete my mission. As I was dusting and cleaning the walls and tube-lights, something caught my eye. For a moment I just stood there looking at it with wonder. Why hadn’t I noticed it before? My sister and I always complain about how our house is undecorated and how we require more frames to put on our walls. But in complaining about what we don’t have, we tend to forget what we do have. Everything around us that was once extraordinary eventually becomes part of the ordinary. What I was looking at was in-fact a beautiful frame hanging above my bedroom’s door. Why was I astonished? Because I had forgotten that it ever existed. That is what happens to every extraordinary thing in our lives. Something new comes up becomes trendy and after a small amount of time becomes part of the ordinary. So, appreciate what you do have.
Have you ever traveled by air? Whenever I travel by air, I love looking out of the window as the airplane takes off. First you see the ground of the airport. As the plane travels higher in air, you can see few houses, cars, parks, rivers, buildings, etc. And then as time passes on, the houses look smaller units and trees look as some green area. Just about 10 minutes later you see nothing but the clouds and the sky. That is when I realize our reality. What are we? We care about so ordinary things. Which car we have, how high our buildings are, what is the color of our skin, how big is our house, are we wearing branded clothes, and so on. Things that are not even visible when looked at from a distance. When we are looked at from high above, we become part of one. Our house look alike, our billboard are non-existent, our cars are just cars.
Just move at bit more away from us and earth seems just all the planets. Our sun looks like a star. If we move further away, we become nothing.
We have to move on from our petty problems. We have to establish peace. We have to take care of each other, because we are all the same. We are life. And only that matters.
I hope you did use it at some point of your lives. This pulse oximeter measures the oxygen level in blood and also records heart rate. It’s so amazing and thought provoking that such a small device can do such wonders. Let’s see how it does so!
So, the basic principle of pulse oximetry is based on the red and infrared light absorption characteristics of oxygenated and deoxygenated hemoglobin. Oxygenated hemoglobin absorbs more infrared light and allows more red light to pass through. Deoxygenated hemoglobin absorbs more red light and allows more infrared light to pass through. Pulse oximeter uses a light emitter with red and infrared LEDs that shines through a reasonably translucent site with good blood flow.
An emitter and photo detector are involved in the transmission and receiving of these LEDs. After the transmitted red (R) and infrared (IR) lights pass through the measuring site and are received at the photodetector, the R/IR ratio is calculated. For example,
- a R/IR ratio of 0.5 equates to approximately 100% SpO2,
- a ratio of 1.0 to approximately 82% SpO2,
- and a ratio of 2.0 equates to 0% SpO2.
References and further reading
Last quiz’s winner is Mehwish Younus Shaikh. She is an amazing blogger. Do check out her blog!
Please answer this question by typing in the correct option in the comments section.
Does it ever happen to you that you suddenly feel sad and lonely even if you are sitting in the middle of a crowd? You become distant from others? Your mind wanders and all you want to do is to look at something far away? Your voice suddenly lacks any emotions? You speak in a low tone, a lonely tone?
There are some days when I feel like it. Maybe that is why I love this picture so much. Maybe that is why I love autumn and lonely benches. Maybe that is why I want wind to breeze through me. Maybe that it why I love looking at the rain droplets running down my glass window.
But then I think. I look around me. Observe my life. Look at all the beautiful things God has blessed me with. Look at family, my uncles, my aunts, my friends. Look at those who love me, care about me, and can sacrifice everything for me. And suddenly realize that I have no legitimate reason to be unhappy. I shouldn’t be unhappy. I should be thankful to Allah for giving me whatever is best for me.