Interesting fact of the day: Not counting point sources of light, any source of light that doesnt appear as a single point will have the same brightness no matter what distance you happen to be from it.
In fact the opposite is true in a sense. Once you get close enough to an object that you can no longer see the whole object within your field of view, then it will get less bright as you get closer.
Amazingly this even applies to the sun. IF you were at the surface of the sun, just a few feet away (Such that 1 meter square of the surface of the sun was within your field of vision) it would only appear to be 93 lumens bright. That would be equivalent to only a 6 watt incandescent light bulb! Compare that to the brightness of the sun from earth which is a whopping 127,000 lumens.
Hi all! I'm still in a newsletter subscription push mode -- with the demise of the bird app, it's gotten really hard to get the word out about projects like this that don't have an internal algorithm to help people find it.
If you like #space, #science, #stem, or just want to support a woman of color doing STEM stuff -- please subscribe! Ad Astra is a weekly newsletter that tells you what's going on in space science and spaceflight.
I originally studied physics. And like many of those who graduated in the #STEM fields, I developed a certain prejudice against the #Humanities.
Today I can say that I was wrong.
And the most important lesson of the Humanities is that the life experiences of others are valid even if they are different than your own - something too many people forget. It's too easy to become a judgmental asshole if you ignore that lesson.
Interesting fact of the day... single cellular organisms have "Molecular Motors" in them.. basically the quantum mechanical equivalent of a mechanical motor... They are surprisingly similar in appearance and are just super cool!
Let me disabuse you of the idea that a Martian colony is the way to save mankind.
Survival on Mars is 1000x more difficult with no free flowing water, no atmosphere, no ozone, no magnetosphere, much less solar radiation to power anything including biological life.
Choosing Mars is picking the absolute worst probability to beat gambler's ruin.
Even a 3' warmer Earth is better.
The first IQ test is to stop pursuing stupid ideas as a magic bullet.
I love the idea of this "What is a #fact?" #humanities course aimed at #STEM students (as described in @TheConversationUS) and absolutely wish I could read the whole syllabus!
Check out this Martian panorama, captured by Curiosity two days ago, on Sol 4174. It is made of 50 adjacent images, each 1328x1184 pixels. Let's go for some zooms👇
Interested in space, but overwhelmed by all the news out there?? I send out a weekly email with a rundown of all the spaceflight/space science news (with images/links) you need. Check out the latest issue here, next one will go out Friday morning!
So, this was my favorite toy growing up... A "160-in-One" Electronics Kit from #RadioShack. The kit had instructions on how to build a simple, low-powered broadcast radio (and I, of course, had cut off the jack of a microphone cord, which I stripped and added as an sound input). Not satisfied with the range of my "pirate radio station," I added a few extra capacitors, used a stainless steel window screen as an antenna, and soon the neighbors were complaining to my grandparents. Mission accomplished!
Putting this out there, hoping the power of Mastodon works!
My daughter just started community college and is looking for an entry level research lab role (she wants to do biochemistry). I don’t have any connections in this area but if anyone has any tips on how to get in, we’d be grateful for your help. Location: #SFBayArea
#EngineeringProfessorQuiz I have a parallel RLC circuit with a current source. If I measure the output current through the capacitor. What is the static gain?
At a meeting in Germany that attracts dozens of Nobel prize winners, one of them objected to its focus on diversity, saying “as a male scientist, I have a feeling of discrimination when I am here, in the climate that this meeting is being held.” Science magazine reports that a visibly nervous early-career researcher stood up to respond….
📣🏁 Les Voix lancent leur première grande campagne d’appel aux dons et adhésions 🏁
📣 Nous avons besoin de vous pour porter la voix de la société civile favorable au #nucléaire 💬⚛️🌍 Nous avons besoin de votre soutien pour poursuivre cette belle aventure, et nous développer.
Les Voix ont plus de 5 ans, et ce qui a été fait, ce qui a été construit, l’a été de manière bénévole. L’association se fixe maintenant l’objectif de passer un cap en se professionnalisant. Nous ne sommes qu’au début d’un long virage vers l’atteinte de nos objectifs climatiques, sociaux et économiques. Si vous pensez comme nous que nous ne les atteindrons pas sans nucléaire, alors franchissez le pas : adhérez ➡️ https://www.voix-du-nucleaire.org/sengager/adherer
Rejoignez les citoyens qui soutiennent, expliquent, et souhaitent continuer à bénéficier des avantages que procure l’énergie nucléaire. Le chemin est encore long pour réussir la transition énergétique bas-carbone, et celle-ci ne sera pas construite de manière durable sans le soutien de l’opinion publique à la relance du programme nucléaire. Cette opinion est fragile, et après plus de 30 ans d’hégémonie de l’idéologie antinucléaire, il faudra du temps pour voir les résultats de nos actions. Vous êtes nombreux à nous suivre sur les réseaux sociaux, et nous espérons que vous serez également nombreux à vous joindre à nous. #BâtirlAvenirNetZero#engagementcitoyen#sortirDesFossiles#repowerEU#science#vulgarisation#STEM#climat#énergie
Very interesting waterfall (spectrogram) of a dial up modem connecting. I can even picture where all the sounds come from I remember hearing as a child from the classic dialup connection.
Hey guys, I am sitting on the #PeerTube (#Federated#YouTube) domain peertube.science - I want to gauge how much of an interest in this for me to set up. Is there anyone interested in a non commercial video service like this for the sciences? Humanities are welcome too. :)
Wow 300 images captured by Curiosity to build a panoramic survey at her Sol 4175 location, ten days ago. This video show them at a rate of 10/second. It took about 50 minutes for the rover to complete this scan with her left mast camera.
Sci-fi books are popular choices. John M Lund Photography Inc./Stone via Getty ImagesScience fiction can lead people to be more cautious about the potential consequences of innovations. It can help people think critically about the ethics of science. Researchers have also found that sci-fi serves as a positive influence on how...
Sci-fi books are rare in school even though they help kids better understand science (news.yahoo.com)
Sci-fi books are popular choices. John M Lund Photography Inc./Stone via Getty ImagesScience fiction can lead people to be more cautious about the potential consequences of innovations. It can help people think critically about the ethics of science. Researchers have also found that sci-fi serves as a positive influence on how...