Erich Hellemann, Ph.D.

I am finding it weird but the last week I had several bots start to follow me. Anyone else saw the same thing?

Took the pictures over the weekend. Today I finished the editing. I am proud of this one 😄. #OrionNebula #Chemsky 📷🔭🧪

This is my first attempt at astrophotography. I hope you enjoy it! #Pleiades 📷🔭chemsky 🧪

Infographic on the 2023 Nobel Prize in Chemistry, awarded for the discovery and synthesis of quantum dots. Quantum dots are nanoparticles of semiconducting materials. Their very small size gives them properties that differ from those of larger particles of the same material. In 1981, Alexei Ekimov produced glass tinted with copper chloride. He controlled the size of the copper chloride nanoparticles that formed in the glass and noticed that particle size affected the colour of the glass. In 1983, Louis Brus created solutions of cadmium sulfide nanoparticles. He also discovered that the smaller the nanoparticles, the bluer the light they absorbed. In 1993, Moungi Bawendi grew nanocrystals of cadmium selenide of a specific size in a solvent which produced smooth and even particles. QLED televisions use quantum dots to enhance the colours displayed on screen. They are also used in some LED lamps.

The 2023 Nobel Prize in Chemistry was awarded for the discovery and synthesis of quantum dots, small particles with big colours. Here's a summary of this prize-winning research and its applications: www.compoundchem.com/2023/10/04/2...

I was also threatened “to be sent back home”, but in my case it was for me to work more hours. I complained to the ombudsperson and the PI did it several times more. My last conversation with that PI literally started with them telling me that it is illegal to record a conversation. I mastered out.

If you would not mind sharing the lens you used, I would appreciate it.

I am trying to learn stargazing, and I am having a hard time locating stuff, even with the app Stellarium. Today I tried to locate M15 and could not, my guess is that light pollution and the moon made it hard. I will persevere! I will find you M15, you can’t hide forever!

Infographic on the difference between arabica and robusta coffee. World production: Arabica 70%, robusta 30% Caffeine content: Arabica: 1.2-1.5%, robusta: 2.2-2.7% Arabica has lower chlorogenic acid content and higher lipid and sugar content. Robusta’s key flavour compounds are more earthy in flavour than arabica’s.

It's #InternationalCoffeeDay! Do you prefer arabica or robusta beans? Here's a look at their chemical differences! wp.me/p4aPLT-7Bs

Here is a dog of a friend @bermudezbertha.bsky.social 📷

chemsky, I am learning hot to use this :P

I want to start sharing a photo a week, this will force me to go out and take pictures, and improve on my photography, so yinz are going to go along with me on my journey 📷 🧪

Infographic on the chemistry of the colours of autumn leaves. Green is caused by chlorophyll, carotenoids and flavonoids give yellows, and oranges come from carotenoids, which also contribute to reds along with anthocyanins.

Today is the autumn equinox in the northern hemisphere, so here's a look at the chemical cause of the yellows, oranges and reds in the fall foliage we'll be seeing shortly! wp.me/p4aPLT-sn 🧪

I’ll check it out. I started Dragon Quest yesterday but definitely will put Chained Echoes in my wishlist 😋 thanks for the suggestion!

I already played it, it is an awesome suggestion! 😋

I am in mood for an JRPG for the switch. Any suggestions??

Clean up weekend is not fun 😳

Hi! Can you add me to the science feed please :)

I should send you my little one so you teach them to cook 😂😂😢