Nasa’s Curiosity rover, also known as the Mars Science Laboratory (MSL), is celebrating 2,000 martian days (sols) investigating Gale Crater on the Red Planet. In that time, the robot has made some remarkable observations.
Farewell Professor Stephen Hawking
This is very saddening.
He died peacefully at his home in Cambridge in the early hours of Wednesday, his family said.
Some quotes from Prof. Hawking:
“Remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do and succeed at.”
“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.”
“We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the universe. That makes us something very special.”
“Black holes ain’t as black as they are painted. They are not the eternal prisons they were once thought. Things can get out of a black hole both on the outside and possibly to another universe. So if you feel you are in a black hole, don’t give up — there’s a way out.”
“It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.”
“Life would be tragic if it weren’t funny.”
RIP to one of my heroes, Stephen Hawking.
On March 14, NASA will join schools, students and science centers across the U.S. as they celebrate one of the most well known and beloved numbers: pi. Used throughout the STEM world – especially for space exploration! – pi is the number that results from dividing the circumference of any circle by its diameter. Pi can be and often is rounded to 3.14 (even though its decimals never end), which is why 3/14 has been designated National Pi Day.
It includes the NASA Pi Day Challenge which has four new problems in topics of exoplanets, helium rain, earthquake on Mars and asteroid ‘Oumuamua. Let’s solve them!
T-3 days until Pi Day 2018. It’s also the birthdate of Albert Einstein. It’s truly a day for math and science.
From the NASA website:
NASA is inviting people around the world to submit their names online to be placed on a microchip aboard NASA’s historic Parker Solar Probe mission launching in summer 2018. The mission will travel through the Sun’s atmosphere, facing brutal heat and radiation conditions — and your name will go along for the ride.
This simple proof of the Pythagorean theorem reveals how brilliant Einstein’s mind is. This is my first time reading his proof and immediately amazed.
Starting with a right triangle, draw a perpendicular line from the hypotenuse to the right angle. This divides the triangle into two smaller right triangles.
$$smallerarea + largerarea = original~area$$
Adding the two triangles equals the original triangle.
Lets say:
$$a = hypotenuseofsmaller~triangle$$
$$b = hypotenuseoflarger~triangle$$
$$c = hypotenuseoforiginal~triangle$$
These triangles are similar in terms of the angles and their sides are in proportion to each other.
Since they’re all similar, each area occupies a fraction, f, of the area of the square of the hypotenuse.
$$smallerarea = fa^2$$
$$largerarea = fb^2$$
$$original~area = fc^2$$
Using all the relationships,
$$fa^2 + fb^2 = fc^2$$
Dividing the above equation by f,
$$a^2 + b^2 = c^2$$
And the Pythagorean theorem has been proved.
How does it work?
FreeTube uses the YouTube API to search for videos. It then uses the HookTube API to grab the raw video files and play them in a basic HTML5 video player, preventing YouTube from tracking that video. Subscriptions, history, and saved videos are stored locally on the user’s computer and is never sent out to Google or anyone else. You own your data.
The app is built using Electron as stated by the developer. I admire that he is being honest about using it.
The app is in beta and available for Linux, Mac and Windows.
Using calculus.
Another privacy and FOSS search engine to try other than searx.
Nokia said a 4G network was “highly energy efficient compared to analogue radio.” Nokia also said its Ultra Compact Network will be the lightest ever developed.
[…]
“Vodafone testing indicates that the base station should be able to broadcast 4G using the 1800 MHz frequency band and send back the first ever live HD video feed of the Moon’s surface.”
Excited to see what 5G has to offer but sticking with 4G for stability is reasonable. Lunar missions are getting active again.
I’m giving micro.blog a try. More on this later.
Blogging is about control
Here, I control my words. Nobody can shut this site down, run annoying ads on it, or sell it to a phone company. Nobody can tell me what I can or can’t say, and I have complete control over the way it’s displayed. Nobody except me can change the URL structure, breaking 14 years of links to content on the web.
Having my own site gives me complete control to do whatever I want, whenever I want, however I want. I don’t understand why people ever want it any other way.
These are also the reasons I created this site.
Expressing one’s thought is important. Why let anyone control on what you have to say?
A user-friendly explanation of string theory.
The site has been rebranded to “Dynamically Static”. This will be the final change in domain name.
Ultimately, as the accuracy of the portable clock continues to get better, time could be used to resolve height differences of just 1 centimeter, the study authors said.
This is a great start. Looking forward for the applications in navigation and engineering.
I’ve been fiddling around with Hugo and decided to migrate the site from Jekyll. I also transferred the site to Netlify from GitLab and so far, the experience has been great. I’m still familiarizing with Hugo and making some customizations. This should be fun.
Astronomers have used NASA’s Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe.
“Science can amuse and fascinate us all, but it is engineering that changes the world.” - Isaac Asimov
ASCII art has been entertaining as always. It will always find it’s way attracting people.
But how do the photons get together? The physicists’ theoretical model suggests that as a single photon moves through the cloud of rubidium, it hops from one atom to another, “like a bee flitting between flowers,” the press release explains. One photon can briefly bind to an atom, forming a hybrid photon-atom or polariton. If two of these polaritons meet in the cloud, they interact. When they reach the edge of the cloud, the atoms stay behind and the photons sail forward, still bound together. Add more photons and same phenomenon gives rise to triplets.