What I’ve always liked about Mendeleev is that he didn’t just build the periodic table, which we’ve no doubt all gazed at in long boring moments if we’ve ever had chemistry classes, he used it to do something I regard as absolutely central to the nature of the scientific method as it emerged in the eighteenth century. For a long time, scientists set themselves the goal of explaining the phenomena they observed. They watched bodies falling at the Earth’s surface, for instance, and they came up with notions of rapidly spinning vortices of ethereal (weightless) matter that drove objects downwards, and lots of people went along with the idea because it seemed quite plausible.
Attractive as well as useful And note number 32 |
The beauty of Newton’s theory of gravitation, long resisted by the proponents of the vortices, was that it predicted things that actually happened, from the movement of the planets (or most of them, anyway – Mercury needed Einstein to come along), to the orbit of the moon, to the action of the tides, to the falling of bodies, all in one theoretical framework. It’s that predictive rather than simply explanatory capacity that gave Newton’s arguments such force, compared to his adversaries’.
Mendeleev did the same, perhaps even more forcefully. He built his periodic table, and discovered there were holes in it: squares that ought to contain the name of an element, but for which none was known.
For instance, he worked on group 14 of the table, which starts with one of the most important elements of all, for us, since it’s the basis for all life: Carbon. It has the capacity of forming long chains of carbons atoms, or alternatively carbon rings, and they are vital in supporting life.
The next element is Silicon, which appears, in particular, in sand and glass.
Then there was a gap. Because the next know element in Mendeleev’s time was tin. It’s so much bigger than Silicon that there had to be another element in between them. Besides, tin is a metal, as is the then last-known element of the group, lead, whereas carbon is definitely non-metallic and silicon only slightly less so; there had to be some transitional element between them.
In 1869, Mendeleev predicted that the material would have an atomic weight of 72, be grey in colour, with a density of 5.5 grams per cubic centimetre and a high melting point. Its chloride, he believed, would boil at a temperature below 100C, and would have a density of 1.9 gm/cc.
In 1886, the element Germanium was discovered. It has an atomic weight of 72.61. It’s grey with a density of 5.35 g/cc; its melting point is 947 C; its chloride boils at 86C and its density is, indeed, 1.9.
Germanium also happens to be a semi-conductor, which makes it important in transistors, and places it neatly in a transition between non-metals and metals.
That’s what I call predictive capacity: to say so much about something unknown, and to find confirmation that close when it’s discovered. Impressive stuff. And truly the stuff of science.
So happy 182nd, Dmitri. And thanks for that great table. It whiled away many a boring period in chemistry lessons.
Impressive man. And didn’t he look it? |
67 comments:
Yes and I also enjoy the story of the tension between Mendeleev and Paul Emile Lecoq de Boisbaudran regarding the properties of Gallium, which Mendeleev also won.
But it should be noted Mendeleev got a lot of things wrong. Sam Keen talks about them in the disappearing spoon, but I remember one of them was that he predicted an entire periodic table on the other side of hydrogen. Just goes to show that the power of predictive reasoning does need the experimental data to back it up in the end.
Good points. But I suppose it shows the validity of the scientific method: it's the confirmation of predictions that makes the point.
I wish you a very very Happy Birthday to you and all Birthday Wishes fill the life with joy and blessing
Wow, amazing weblog structure! How lengthy have
you ever been blogging for? you made running a blog look easy.
The entire glance of your web site is magnificent, let alone
the content!
ant download manager crack
agisoft photoscan crack
ivi crack
cubase pro crack
My spouse and I absolutely love your blog and find a lot of your post’s to be just
what I’m looking for. Does one offer guest writers to write
content for you personally? I wouldn’t mind creating
a post or elaborating on a lot of the subjects you write related to here.
Again, awesome web log!
mirillis action crack
hotspot shield crack
avg email server edition crack
I'm really impressed with your writing skills, as smart as the structure of your weblog.
Is this a paid topic or do you change it yourself?
However, stopping by with great quality writing, it's hard to see any good blog today.
idm serial key crack
outbyte driver updater crack
idm crack
imazing crack
Thanks for your personal marvelous posting! I seriously enjoyed reading it,
you happen to be a great author.I will remember to bookmark your blog and may come back in the future.
I want to encourage that you continue your great writing, have
a nice weekend!
smadav antivirus crack
luminar photo editor crack
removewat crack
mini tool power crack
manycam crack
I every time emailed this webpage post page to all my associates, because if like to
read it after that my contacts will too.
active file recovery crack
avs video editor 9 4 2 crack
Hello there! One of my Facebook groups shared this website with us.
I came to see him too. I really like this information.
snagit crack
avast premier crack
paragon ntfs crack
reaconverter pro crack
Great post! We are linking to this great article on our
site. Keep up the great writing.
microsoft office 2019 product key
4k video downloader crack
fontlab crack
isobuster crack
lashboot crack
windows 10 pro iso for free 32 bit and 64 bit
I know this site offers high quality content and other information,
is there any other site that presents these things qualitatively?
msc adams 2017 latest
logic pro x crack
ccleaner pro crack
It’s not my first time to pay a quick visit this web
site, i am visiting this site dailly and obtain fastidious data from here
daily.
alcohol 120 crack
xilisoft video converter ultimate crack
call of duty mobile apk
I really love your blog.. Great colors & theme.
Did you develop this website yourself? Please reply
back as I’m hoping to create my own site and would love to know
where you got this from or just what the theme is named.
Thank you!
iphone backup extractor crack
Great blog! Is your theme custom made or did you download it from somewhere?
A design like yours with a few simple tweeks would really make my blog stand out.
Please let me know where you got your design. Bless you
Great blog! Is your theme custom made or did you download it from somewhere?
A design like yours with a few simple tweeks would really make my blog stand out.
Please let me know where you got your design. Bless you
driver booster crack
adobe photoshop cs6
daemon tools ultra
windows repair pro crack
bubble shooter apk
Great blog! Is your theme custom made or did you download it from somewhere?
A design like yours with a few simple tweeks would really make my blog stand out.
Please let me know where you got your design. Bless you
microsoft toolkit
ispring free cam
gbwhatsapp mod apk
Nicely written & done.
I started writing in the last few days and realized that lot of
writers simply rework old ideas but add very little of value.
It’s fantastic to read an informative post of some genuine value to myself and your other followers.
It is on the list of things I need to replicate as a new blogger.
Reader engagement and content quality are king.
Some terrific ideas; you’ve most certainly managed to get on my list of blogs to watch!
Carry on the terrific work!
Well done,
Cheryl.
Thank you!
movavi video converter crack
Hello it’s me, I am also visiting this site on a regular basis, this web page is truly nice and the people are actually sharing fastidious thoughts.
artlantis studio crack
iobit unlocker crack
avg driver updater crack
movavi video converter crack
radmin vpn crack
adobe photoshop elements crack
coreldraw crack
auslogics registry defrag crack
minitool partition wizard pro crack
I am very impressed with your work because your work provide me a great knowledge and thanks for sharing
screenhunter pro crack
vysor pro crack
serato dj pro crack
It's really solid for you from an overall perspective of all window programming foundation. This site is amazing its article is major and overpowering. I appreciated and bookmark this site on my chrome. This is where you can get all break programming in like way present considering a specific target.
https://cracksmad.com/
It's truly strong for you from a general point of view of all window programming establishment. This site is astonishing its article is major and overwhelming. I appreciated and bookmark this site on my chrome. This is the place where you can get all break programming in like manner present thinking about a particular objective.
/https://chlicensekey.com
This blog is very useful and very helpful for me. Keep sharing this type of blog with us. I am very grateful to you for sharing this useful and helpful blog with us.
removewat crack free
imindmap crack
deskscapes full crack
vuescan free crack download
Thanks for ones marvelous posting! I actually enjoyed reading it, you happen to be a great author. I will remember to bookmark your blog and will often come back very soon. I want to encourage that you continue your great posts,
Matlab Crack
Camtasia Studio Crack
final cut pro x crack
navicat premium crack
Hey, there admins, I visit your blog and I like it very much keep it up, bro.
Mathtype Crack
[…] has there own vehicle. Transportation is been a part of their daily routine. Transferring from movavi video converter full crack download to amazing . not easy without using this. movavi video converter free download invented the […]
luminar crack
mixpad music mixer crack
phpstorm crack
updatedcrack
matlab crack license key
mcafee antivirus crack
movavi pdf editor crack activation key
nch dreamplan plus crack
nordvpn crack
Spⲟt on with this write-up, I actually believe that this sitte needs
much more Đ°ttention. I’ll probabⅼy be back again to see more, thanks for the info! virtual dj pro crack
phpstorm crack
virtual dj crack
Oh my goodness! Impressive article dude! Thanks, However I am having troubles with your RSS. I don’t understand the reason why I am unable to join it. Is there anybody having the same RSS issues? Anyone that knows the answer will you kindly respond? Thanx!!
driver easy crack
vidmix apk mod
movavi photo editor crack
daemon tools ultra crack
Nice post, Keep it up. Thanks for sharing.
Lumion Crack
Advanced Disk Recovery Crack
Get the best Argentina Import Export Data at Import Globals. For more information about our import export services call +919999887320 or visit our website.
Chile Import Data
I like your post. It is good to see you verbalize from the heart and clarity on this important subject can be easily observed.
OverWatch 3.16 Crack
Photomatix Pro Crack
Euro Truck Simulator Crack
Neat Video Crack
Sidify Music Converter Crack
PluralEyes Crack
Amtlib DLL Crack
iCloud Remover Crack
Beautifully written and done.
I recently started creating blogs and noticed a lot of people are just repeating old content but adding
very little in price. It's good to add a useful article of real value to your subscribers and me.
wondershare pdf editor pro crack
fl studio crack
movavi video converter crack
movavi 360 video editor crack
adobe photoshop cc crack
transmac crack
On the Internet, I was happy to discover this installation.
It was a wonderful read and I owe it to you at least once.
It touched my interest a little and you kindly kept it.
Become a fan of a new article on your site
malwarebytes premium crack
templatetoaster crack
microsoft office 2016 crack
xsplit gamecaster studio crack
among us crack
I am very impressed with your post because this post is very helpful to me and gives me new information. Thanks for sharing this post is a great article. God bless you
minitool partition wizard pro
windows device recovery tool
final fantasy 7 remake crack
marvels avengers crack
quadrilateral cowboy crack
azure striker gunvolt crack
nier replicant ver crack
minecraft dungeons crack
diablo hellfire gog crack
rick and morty virtual rickality vr vrex crack
Hello, Your Site is very nice, and it's very helping us this post is unique and interesting, thank you for sharing this awesome information. and visit our blog site also.. Keep it up
PortraitPro 22.0.2 Crack
IDM Crack 6.40 Build 9 Patch
I guess I am the only one who came here to share my very own experience. Guess what!? I am using my laptop for almost the past 2 years, but I had no idea of solving some basic issues. I do not know how to Crack Softwares Free Download But thankfully, I recently visited a website named Crackedfine
Datakit Crossmanager Crack
DxO PhotoLab Elite Crack
Kaspersky Total Security Crack
Java Jdk Kit Crack
Wow, this was an exceptionally well-written article. This was just too much information for my taste.
Good Software<....>
Nuclear Coffee VideoGet license-key
NCH DreamPlan Plus Crack
MapInfo Professional crack
Cartoon Animator crack
Thank you so much for sharing this wonderful information with us. It seems like you have done a lot of hard work to collect such great information.
InPixio Photo Editor crack
Avira System Speedup Pro crack
Artlantis Studio crack
I like your all post. You have done really good work. Thank you for the information you provide, it helped me a lot. vstlicense.com I hope to have many more entries or so from you.
Very interesting blog.
Burnaware Professional Crack
I’ve been surfing on the web more than 3 hours today, yet I never found any stunning article like yours.
It’s alluringly worth for me.
As I would see it, if all web proprietors and bloggers made puzzling substance as you did.
the net will be in a general sense more beneficial than at whatever point in late memory.
auslogics disk defrag crack
able2extract professional crack
http debugger pro crack
techsmith camtasia crack
ransomware defender crack
epic pen pro crack
Amazing and Creative blogs that you see.. Its latest version indormation......'
Epubor Ultimate eBook Converter crack
Evaer video recorder crack
Combo Cleaner Premium Crack
Aiseesoft Screen Recorder Crack
DVBViewer Crack
ApowerPDF Crack
Microsoft Safety Scanner Crack
Leawo Music Recorder Crack
Keyscape Mac Crack
FotoWorks XL Crack
I am overjoyed to have discovered this article. The writer has an extremely creative mind; life is all about creating yourself, not finding yourself. Kindly visit my page because my post includes useful information.Available Now
Amazing and Creative blogs that you see.. Its latest version indormation......'
ApowerPDF Crack
Evaer video recorder crack
Combo Cleaner Premium Crack
Aiseesoft Screen Recorder Crack
DVBViewer Crack
ApowerPDF Crack
Microsoft Safety Scanner Crack
Leawo Music Recorder Crack
Keyscape Mac Crack
FotoWorks XL Crack
I appreciate you providing yet another useful webpage. Exactly where else can I find knowledge stated in such a perfect manner?
I've been looking for information about this subject for a long time and yours truly has provided me with valuable information to work on.
microsoft video converter crack
easeus video editor crack
movie mator editor pro crack
avee music player apk crack
It's encouraging to see that some people continue to put effort into maintaining their websites. I'll make sure to come back and visit you soon. It's very incredible. https://cracksir.com/remove-logo-now-4-0-1-cracked-latest/
This is a very informative site. It is very helpful for me. I think! it is great for any one. Thanks for the Recommendation.
https://crackgive.com/driverfinder-pro-3-8-0-crack-license-key-free-download/
I'd like to see many more submissions from you in the future.
So many people love your software. It's an honor to see your work.https://wellcrack.com/artweaver-plus-crack/
Thank you for your valuable updates. You can also
PreSonus Studio One
You are so interesting! I don't think I've read anything like this before.
It's great to find someone with real ideas on this topic. Indeed ... thank you very much for starting.
This site is something needed on the internet, not real!
This is a great blog! Your site is loading too fast!
What type of web server do you use? Can you send me an affiliate link for your web host?
plum amazing iwatermark pro crack
program4pc audio converter pro crack
aimersoft dvd creator crack
wondershare dvd creator crack
winext batch operator enterprise crack
treesize professional crack
softmaker flexipdf 2019 professional crack
viewcompanion premium crack
red gate smartassembly crack
I am a web blogger visit my website
Crack Keygen Patch Softwares
Very well done. Keep up the excellent work.
https://macapps-download.com/the-henry-stickmin-collection/
It's a fantastic piece of software. I'm pleased I stumbled onto this and had the chance to read it.https://freesoftwareapps.com/avid-pro-tools-serial-key-crack/
This webpage was recommended to me by a friend.
ESET NOD32 Antivirus
Software Engineering, on the other hand, is engineering applied to software development. Keep up the wonderful work and keep spreading the word. regards.
https://crackguru.net/photofiltre-studio-x-crack/
Blogger
I've subscribed and am forward to finding out more of your wonderful content.
I like this website. I am very satisfied with it.
i am satisfied with it i like this website
NordVPN Crack Crack
Nursing jobs in Germany offer a fantastic opportunity for Indian nurses to advance their careers in a high-quality healthcare system. The increasing demand for skilled nursing professionals means numerous job openings across hospitals, clinics, and elderly care facilities. Candidates must have a recognised nursing qualification and be proficient in the German language for effective patient communication. Competitive salaries and excellent benefits packages enhance the appeal of these positions. Furthermore, Germany prioritises professional development, allowing nurses to continually improve their skills. Relocation assistance is commonly provided, ensuring a smoother transition for international applicants. Embrace the chance to work in a culturally rich environment where your contributions can significantly impact patient care. Join a thriving workforce that values diversity and expertise in the nursing sector.
https://www.dynamichealthstaff.com/nursing-jobs-in-germany-for-indian-nurses
Pro Tools Crack is a heavyweight in the world of sound, acting as a digital audio workstation (DAW) for professionals. It lets them create music, edit sound in films, and record audio with precision.
Edinburgh Removals Company is your go-to solution for hassle-free moving in the city. We specialize in both residential and commercial relocations, offering tailored services to fit your unique needs. Our experienced team ensures careful packing, efficient loading, and safe transportation of your belongings. Committed to customer satisfaction, we strive to make your moving experience as smooth as possible. With transparent pricing and no hidden fees, you can plan your budget with confidence. Our fleet of well-equipped vehicles is designed to handle moves of all sizes. Trust us to manage every detail with professionalism and care. Choose Edinburgh Removals Company for a reliable and stress-free moving experience.
https://eh1-edinburghremovals.co.uk/
Fantasy Football Tips Fantasy Football Tips 2024 is more than just a game; it’s a blend of strategy, knowledge, and a bit of luck. Whether you’re a seasoned player or a newcomer, understanding how to navigate the 2024 fantasy football season is crucial for maximizing your success.
Best Football Kits Football kits are canvases where passion and design collide, serving as more than just uniforms. The football world is adorned with a plethora of striking uniforms that combine fashion, history, and creativity as we approach 2024. This article will examine the best Top football kits 2024, highlight the most popular styles, and offer analysis of current fashions.
Fantasy Football Sleepers Fantasy Football Sleepers 2024 is all about discovering value where others may not perceive it. While the early rounds frequently concentrate on the big names, the real challenge of a fantasy manager is spotting those hidden gems—players who could just break out and surpass their draft positions. These players are known as “sleepers,” and in 2024, there are many of them poised to make an impact.
Post a Comment