Case Western Reserve University

As I previously mentioned I would like to launch a second blog featuring small facts or insights that are widely disbelieved despite being known to be true by the experts in the relevant field or facts that are very surprising or misunderstood by a lot of people. These facts shouldn’t be trivia but important facts that are somewhat easy to understand despite their status as being unthinkable to many. They are not scientific theories or complex sets of facts or information, but facts that you can easily state. They may be part of a scientific theory, or a result of an established scientific theory but not an entire scientific theory. I’ve collected hundreds of these facts because to me they seem to be extraordinarily important. They are worldview altering facts, big shocking facts to some, facts that many people deny regardless of the evidence, super-facts if you will.

In a previous post I discussed that despite the fact that the scientific community states that Earth is 4.5 billion years old and that humans evolved over millions of years a 2019 Gallup poll, showed that 40% of US adults believe that God created humans in their current form within the last 10,000 years. The evidence proves that this 40% of the population is wrong. The scientists aren’t guessing. They make their claim that earth is 4.5 billion years old based on a lot of strong evidence. Evidence which is unknown to a lot of people. In this post I am discussing a fact that once was widely disputed but today is more just surprising or not understood by many and that is that the speed of light in vacuum is a universal constant.

No matter how fast you travel, what direction, or where you are you will measure the speed of light compared to yourself to be c = 299,792,458 meters per second or approximately 186,000 miles per second or 671 million miles per hour.

The picture shows two people Alan and Amy. Alan is on the ground. Amy is flying by Alan in a rocket speeding left. Both Alan and Amy are pointing lasers to the left. — In this picture Amy is traveling past Alan in a rocket. Both have a laser. Both measure the speed of both laser beams to be c = 299,792,458 meters per second.

In the picture above let’s say Amy is flying past Alan at half the speed of light. If you believe Alan when he says that both laser beams are traveling at the speed of c = 186,000 miles per second, then you would expect Amy to measure her laser beam to travel at a speed that is half of that c/2 = 93,000 miles per hour, but she doesn’t. She measures her laser light beam to travel at the speed of c = 186,000 miles per second just like Alan. This seems contradictory. The solution that the special theory of relativity offers for this paradox is that time and space are relative and Amy and Alan measure time and space differently (more on that in another post).

Clocks being sucked into a hole or possibly sped up into space — Time is going to be different for me. From shutterstock Illustration ID: 1055076638 by andrey_l

I should add that the realization that the speed of light in vacuum is a constant regardless of the speed or direction of the observer or the light source was a result of many experiments, which began with the Michelson-Morley experiments at Case Western Reserve University, Cleveland, Ohio in the years 1881-1887. At first scientists thought that there was an ether that compressed the experimental equipment and distorted clocks so that it seemed like the light vacuum always came out the same. With the special theory of relativity in 1905 those speculations were laid to rest.

This is a drawing of the Michelson interferometer used at Case Western Reserve University — The first Michelson-Interferometer from 1881. It was used to measure the speed difference of two light beams (well a split light beam) with a very high accuracy (for the time). The light traveled with the same speed in all directions and no matter what earth’s position and speed was in its orbit around the sun. This picture is taken from Wikipedia and is in the public domain of the United States.

The speed c = 299,792,458 meters per second is a universal speed limit created by time and space

I should point out that there is nothing magical about the speed of light in a vacuum. Light traveling through matter, like glass or water, does not travel at this speed c, but slower. It also isn’t entirely correct to say that the speed of light in vacuum is a universal constant, because it isn’t about light per se. What is happening is that light traveling completely unimpeded through vacuum is prevented from traveling infinitely fast by the way time and space is set up. All massless particles / radiation, or anything that hypothetically could be traveling at an infinite speed is prevented from doing that because of the way time and space are related. Light in vacuum just happened to be what we first discovered to be restricted by this universal speed limit. Yes, time and space are annoying that way, putting a limit on the speed of light and on massless particles.

So how is time and space arranged to cause this universal speed limit? Well, that is an even more surprising blog post for another day (I will link to it once I have made the post). From this discovery about time and space came a lot of other interesting realizations but that is also for another post, but let’s just give a brief summary:

Time for travelers moving fast compared to you is running slower.
Length intervals for travelers moving fast compared to you are contracted.
Simultaneous events may not be simultaneous for another observer.
The order of events may be reversed for different observers.
If you accelerate to a speed that is 99.999% of the speed of light you still haven’t gotten any closer to the speed of light from your perspective. Light in vacuum will still speed off from you at c = 186,000 miles per second.
Acceleration will get harder the closer you get to the speed of light in vacuum. The force required will reach infinity as you approach the speed of light in vacuum.
Forces, the mass of objects, momentum, energy and many other physical quantities will reach infinity as you approach the speed of light in vacuum assuming you are not a massless particle.
Mass is energy and vice versa E = mc²
Magnetic fields pop out as a relativistic side-effect of moving charges.

So, it seems like we cannot travel faster than the speed of light in vacuum. It seems like the universal speed limit is really a hard limit, unlike the speed limits on Texas highways. That is maybe true, at least locally where we are. However, you could get around it, sort of cheating, by stretching and bending space to the extreme by using, for example, enormous amounts of negative energy. That’s happening to our Universe over a scale of tens of billions of lightyears. A lightyear is the distance light in vacuum travel over a year. Stretching and bending space is not part of the special theory of relativity. That is Einstein’s General Theory of Relativity, which is a very complicated theory, so you may not see any posts on that. — Mass is energy and vice versa, a direct result of the way time and space are related. Stock Photo ID: 2163111377 by Aree_S

How do you feel about time and space creating this universal speed limit in which light in vacuum travel?

This post is not about Leonbergers but about something entirely different; culture shock, which I think is an interesting topic. The Merriam-Webster dictionary defines culture shock as : “a sense of confusion and uncertainty sometimes with feelings of anxiety that may affect people exposed to an alien culture or environment without adequate preparation”.

Woman in shock — Photo by Andrea Piacquadio on Pexels.com

In 1987 I was selected to be part of a university level exchange student program. The exchange program was between Uppsala University in Sweden and Case Western Reserve University in Cleveland, Ohio. In total we were six Swedes (two from Uppsala). I was studying Engineering Physics in Sweden but in the US, I would continue studying Electrical Engineering because the Swedish Engineering Physics program was very similar to the Electrical Engineering program at CWRU.

Street view with a cathedral in the background. — Street view of the old city of the Swedish city of Uppsala (1000+ years old). Photo by Aliia Troitskaya on Pexels.com

Four Swedes. I am in the middle opening a can of fermented herring. — Four Swedes inviting Americans to a fermented herring party. Fermented herring is a north Swedish specialty. Unfortunately, all the Americans experienced a culture shock from the fermented herring. I am the guy smelling the fermented herring can.

Four Swedes and an Indonesian girl in a van in Florida. — Four Swedes and Jonas girlfriend from Indonesia. We were on a trip to Florida.

Indian girl left. Swedish girl right. — Swedish exchange student Linda and her Indian friend Anuradha.

I arrived in the US in August 1987, and I was not well prepared for what I would experience. That doesn’t mean it wasn’t a great experience but there were challenges. Interestingly, I would later experience reverse culture shock. Reverse culture shock means that after adjusting to your new country you experience another shock when coming back to your old country.

We are sitting around a dinner table. — Before heading out to Cleveland I visited Rakel, a Swedish friend who was living in California at the time. Here we are with our hosts Jay and Nancy Feinstein.

One of my first unpleasant discoveries was that the US uses imperial units instead of the metric system unlike most of the rest of the world. I quickly had to learn how to use inches, feet, miles, ounces, pounds, cups, gallons, etc. I knew about miles per hour versus kilometers per hour, but it had not dawned on me that it applied to everything. This is quite important in engineering.

Tape measure — Photo by Pixabay on Pexels.com

The academic environment was also quite different. In the US there were fewer classes, but you were often required to participate and there were quizzes and homework in addition to the final exam, which was short and relatively rushed. In Sweden you showed what you had learned on one big final exam that lasted 6-8 hours. How you achieved success on that exam was up to you. Well certain lab work had some weight also.

Boy taking an exam — Photo by Jeswin Thomas on Pexels.com

In addition, in Sweden there were no dorms, no fraternities, no Greek life, no meal plans, no college sports teams, no tuition, and no health insurance. Attending a university in Sweden is more like working for a company. You are more independent, and tuition is free, and Sweden has national healthcare. In Sweden there are clubs, organizations, and parties you can go to, but it is more adult and has no likeness to fraternities. I have no opinion on which system is better, but it was a challenge to suddenly adjust to a dorm, meal plans, a different kind of student life, tuition waivers (provided by Uppsala University), etc.

Three dorm buildings. Glaser in the middle. — This is the Glaser dorm at Case Western Reserve University where I stayed.

Another difficulty was that I was not fluent in English at the time. I had a hard time with conversation as well as understanding portions of some lectures. People in English speaking countries often do not understand the amount of work that goes into learning how to speak a second language fluently because unlike most of the rest of the world they never had to do it. English being the premier second language comes with great benefits for native English speakers. Learning to speak a language fluently is one thing, learning to speak it without an accent if you primarily learned it as an adult is quite another. A question I’ve gotten many times is ”why do you still speak with an accent?”. Well, Arnold Schwarzenegger certainly knows the answer to that question.

Yellow English grammar book — Photo by Ivan Samkov on Pexels.com

Another thing people in English speaking countries sometimes miss is that people in the rest of the world are often not as familiar with the culture in English speaking countries as they might expect them to be. Well at least that was the case back then. In high school I studied Swedish and Scandinavian literature, and a little bit of German, French, Italian, and English/American literature, but I did not know much about Shakespear or famous American authors, and if you think about it, this is not strange. In addition, I did not know much about American movies or American music, but that was because I, unlike most Swedes, had not paid much attention to English speaking culture and music in general.

A book by William Shakespear. Romeo and Juliet. — Photo by Sema Nur on Pexels.com

Add to that, the fact that Americans do not know much about cultural phenomenon in the world outside of the United States. For example, most Americans knew nothing about the world’s largest music competition, Eurovision. Eurovision is the largest song contest in the world. Countries compete against each other, and the final typically has as many viewers as the Superbowl, about 200 million. Americans also don’t know much about the second largest comic genre (largest at the time) in world, the French-Belgian Bandé-Dessiné (Astérix, Tintin, Spirou, etc.). So, we knew different things and were used to talking about different things, sometimes leading to awkward situations.

Scanned front cover of one of the Asterix comic books.

Which brings me to handegg. What most of the world call football is called soccer here, whilst a sport in which you handle an egg-shaped object mostly with your hands is called football, when it should be called “handegg”. When I arrived in the US, I had never heard of American football, but I quickly realized that I better know something about it. Later in the year I went to an indoor football game with a friend in Madison Square Garden in New York. Indoor football is a sport that has almost vanished, but it was still a thing back then. Can you guess who was called down to the field to play football at half time? I was. I told the host that I was from Sweden and that it was the first time I held a football. He showed me how to hold the ball and announced that I was from Sweden and had never held a football. The crowd was cheering for me, and luckily, I threw the ball into the goal two times out of three. Our team did not win but I did well.

Me holding a football in the arena at Madison Square Garden. — I am getting ready to throw the ball.

My friend Hakan and I. I am holding a football. — It went well, and I got to keep the ball (egg), my very first football.

Which brings me to the fact that Americans are typically polite, friendly and supportive of the underdog. They communicate well, they say excuse me when they bump into people, they smile a lot, and are often good conversationalists. Americans can be loud and not everyone is friendly but in general most Americans are friendly. I think this is a good thing that I am trying to emulate but it was yet another thing I needed to learn.

Some friendly Americans including my wife second from left. The others are (left to right) Jim Haggarty, something James Kirkpatrick and his wife.

One thing that might sound like critique is that Americans back then did not know world geography very well. Today’s youth seem to be a lot better educated in this regard. I should say that by the age of ten I knew every country in the world and their capitals, and I could say something about most of the larger countries. So, it was a little bit frustrating to me to speak to people who did not know where anything was. We met people who asked how long the drive from Sweden / or Europe was. A woman asked me where I was from and I said Sweden to which she replied, “is that where all the men wear skirts?”. I said, “no that is Scotland”. I believe that’s what she meant. Another woman asked me the same thing, and after hearing my answer, she said “Sweeting, that’s the name of your country? What a cute name for a country”. Or how about this conversation between the PhD advisor to a friend of mine and my friend’s boss:

Boss : My name is …, what is your name?

PhD advisor : My name is Bahram.

Boss : Baddam, that’s not an American name, is it?

PhD advisor : No, I am from Iran.

Boss : Iran I’ve never heard of that. Where is that?

PhD advisor : It’s in Persia.

Boss : Oh yeah Persia I’ve heard of that.

Photo of a world globe. Iran is in the middle. — Photo by NastyaSensei on Pexels.com

I overcame my culture shock, and we all did well at CWRU. It was a good year. Later that year I met my wife Claudia and with her I would experience a reverse culture shock a few years later. I was working for a Swedish robotics company, and we moved to Sweden with our oldest son for one and a half year. Not only did my wife have a culture shock but I did too, coming back to Sweden. How did that happen? Well, one reason was that in the US I had gotten used to a mix of cultures and ethic groups and Sweden is a very homogenous country. This mattered because through my wife, who is not Swedish, I got to know immigrants to Sweden. It is difficult to fit in when you are different and therefore immigrants tend to hang around other immigrants, so I learned to see Swedish society through their eyes, and I saw what I had never seen before. It took some time to get used to.