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Chemistry Shorts™
United States
Приєднався 18 чер 2019
The Chemistry Shorts™ series shows the vital role the chemical sciences play in the biggest issues facing the world. Each film is accompanied by a lesson plan to integrate the science behind these innovations into the classroom.
Cracking Chirality: The Mystery of Mirror Molecules
"Cracking Chirality" from Chemistry Shorts™ explores how the essential molecules of life, like DNA, RNA, and proteins, acquired their homochiral structures and how magnetic rocks at the bottom of a prebiotic lake, may have set the stage for life as we know it.
In a mirror, our bodies appear symmetrical from the right to the left. But hold one hand on top of the other, rather than palm-to-palm, and you’ll notice that they are not in fact the same; they have a defined right- or left-handedness, or chirality. Look even deeper inside, at the molecular level, and you’ll find that many of the important molecules in our bodies are similarly right or left-handed, and exist in only one form or the other. We call this homochirality.
Chirality is the idea that some molecules come in two mirror-image configurations. Despite having the exact same chemical compositions, their physical structures are different. These left-handed and right-handed molecules can have different properties and functions. Understanding how chiral molecules function differently is essential to chemical synthesis and medicine. But it also holds a curious question about early life: why are the nucleic acids that hold genetic information in all of life right-handed, while the amino acids that they encode left-handed?
In "Cracking Chirality,” two Harvard University scientists, Dimitar Sasselov and Furkan Ozturk, present their exciting new findings: magnetized molecules found at the bottom of lakes on the primordial Earth may be the key to how important biological molecules crystallized and grew, tipping the scales from a 50-50 mixture of molecules to homochiral solutions made up of just one or the other. Their simple experimental setups, growing crystals on tiny magnetized plates, help provide a solution to an essential question about life itself that has plagued scientists for decades.
“Life's polymers from DNA, to RNA, to the proteins, cannot really function if they're a mess of left-handed and right-handed molecules. They have to be clearly homochiral. And you need to do something very special to break that symmetry. It is still a big mystery of how this happened at the origin of life. And our work is trying to answer that question.”
- Dr. Dimitar Sasselov in “Cracking Chirality.”
“Cracking Chirality” is targeted towards high school and college students, and can be used as a starting point for discussions around the chemical origins of life, molecular chirality, electron spin, magnetism, and more.
Learn about Dr. Sasselov’s work here: astronomy.fas.harvard.edu/people/dimitar-sasselov
Learn more about Chemistry Shorts™ and view companion classroom curriculum at www.chemistryshorts.org
In a mirror, our bodies appear symmetrical from the right to the left. But hold one hand on top of the other, rather than palm-to-palm, and you’ll notice that they are not in fact the same; they have a defined right- or left-handedness, or chirality. Look even deeper inside, at the molecular level, and you’ll find that many of the important molecules in our bodies are similarly right or left-handed, and exist in only one form or the other. We call this homochirality.
Chirality is the idea that some molecules come in two mirror-image configurations. Despite having the exact same chemical compositions, their physical structures are different. These left-handed and right-handed molecules can have different properties and functions. Understanding how chiral molecules function differently is essential to chemical synthesis and medicine. But it also holds a curious question about early life: why are the nucleic acids that hold genetic information in all of life right-handed, while the amino acids that they encode left-handed?
In "Cracking Chirality,” two Harvard University scientists, Dimitar Sasselov and Furkan Ozturk, present their exciting new findings: magnetized molecules found at the bottom of lakes on the primordial Earth may be the key to how important biological molecules crystallized and grew, tipping the scales from a 50-50 mixture of molecules to homochiral solutions made up of just one or the other. Their simple experimental setups, growing crystals on tiny magnetized plates, help provide a solution to an essential question about life itself that has plagued scientists for decades.
“Life's polymers from DNA, to RNA, to the proteins, cannot really function if they're a mess of left-handed and right-handed molecules. They have to be clearly homochiral. And you need to do something very special to break that symmetry. It is still a big mystery of how this happened at the origin of life. And our work is trying to answer that question.”
- Dr. Dimitar Sasselov in “Cracking Chirality.”
“Cracking Chirality” is targeted towards high school and college students, and can be used as a starting point for discussions around the chemical origins of life, molecular chirality, electron spin, magnetism, and more.
Learn about Dr. Sasselov’s work here: astronomy.fas.harvard.edu/people/dimitar-sasselov
Learn more about Chemistry Shorts™ and view companion classroom curriculum at www.chemistryshorts.org
Переглядів: 146 744
Відео
Frosty Formulations: The Chemistry of Ice Cream
Переглядів 13 тис.6 місяців тому
"Frosty Formulations," a seven-minute short film from Chemistry Shorts, explores the surprising science behind one of the world’s favorite desserts. Ice cream is made up of dairy, sugar, flavorings, and chemistry! In "Frosty Formulations," Ice Cream Scientist Dr. Maya Warren takes us down to the microscopic level to discuss how ice cream is a solid, liquid, and gas all at once, and how the comb...
Driving Reactions: Solving Plastic Waste
Переглядів 20 тис.Рік тому
Our world faces climate, economic, and sustainability challenges that we don’t yet have the tools to fix. The film “Driving Reactions” explores how directed evolution and the chemical sciences are creating some of these new tools. This is the fifth addition to the well-received Chemistry Shorts™ film series presented by the Camille and Henry Dreyfus Foundation. The series spotlights the positiv...
Untapped Potential: Ensuring a Safe Water Supply
Переглядів 7 тис.2 роки тому
“Untapped Potential” highlights both the critical challenges and chemistry-inspired innovations in water supply, re-use, and purification. This is the fourth addition to the well-received Chemistry Shorts™ film series presented by the Dreyfus Foundation. The series spotlights the positive impact of chemistry on modern life as scientists work to solve important problems and create new opportunit...
Direct Air Capture & The Future of Climate Change
Переглядів 4,1 тис.3 роки тому
Global climate change is one of the most important challenges of our time, and chemists and chemical engineers are at the forefront of this effort. One especially promising technology is through Direct Air Capture. Direct Air Capture makes use of amines, which capture carbon dioxide out of the air through specific chemical bonding. The carbon dioxide is then sequestered by storing it undergroun...
Under The Skin: Designing Synthetic Skin
Переглядів 15 тис.4 роки тому
Under The Skin: Designing Synthetic Skin
Sizin gibi insanlara çok ihtiyacımız var. İyi ki varsınız. Teşekkürler. @SFurkanOzturk61 ⭐⭐⭐⭐⭐
Very proud of you ☺️
Wow amazing ♥️🇹🇷
Proud to support Chemistry Shorts!
Thank you for your support!
Watch the full video on our UA-cam channel or on chemistryshorts.org!
👏👏👏👏
:)
Water is so valuable, it feels so important to find every way we can to reuse it!!
We agree!
She fine mmm
So cool!
Thank you!
Proud to support Chemistry Shorts!
Thank you for your support! :)
Watch the full video on our UA-cam channel or at Chemistryshorts.org!
Mükemmel bir anlatım! Mükemmel bir araştırma! Çok değerli bir bilim adamı. Teşekkür ederiz emeği geçen herkese
Thank you for watching!
After this video, you should ask someone for support to add Turkish subtitles to every science video you make :)
One of the most inspirational video i've ever watched😊 thanks
Thank you!
Thanks for documentary. Chirality is interesting🤔
We agree! Thank you for watching :)
U see longer droughts cause u take and have sucked all of the ground water hundreds of miles away to use. There is no climate change the way u mean it.
I’m totally here for new water reuse methods!
Thank you for watching :)
Proud to support @ChemistryShorts!
Thank you for your support! :)
Watch the full video on our UA-cam channel or on chemistryshorts.org!
Congratulations young scientist 🇹🇷 It is great to carry out such studies in the name of science and to discover new information, and thank you for sharing it with us here. And for me, trying to learn was exciting.
Thank you for watching!
bu adam trabzonlu
discovery itself is already remarkable, shooting is perfect and i would like to know what are the names of musics in there.
Muhteşemsin kardeşim. Tebrikler.
Thank you for watching!
Furkan Öztürk Evrim Ağacın da görmüştüm direk tanıdım başarılarının devamını dilerim
Thank you for watching!
Gurursun bro
This important work deserves Nobel prize. 👌
:)
12:00 furkan ne yapıyorsun furkaaannnn :)
So, it could be possible to create chirality mirror doppelgangers?!?
Harika bir çekim. Yüzünüzdeki huzur ve mutluluk banada geldi. Yolunuz açık olsun. Daha cok böyle güzel buluş ve videolarınızı izlemek, dinlemek dileğiyle .❤
Thank you for watching!
Başarılar Furkan. Türkiyedeki kardeşlerin senin yanında
:)
👍👌
:)
Proud to support Chemistry Shorts!
Thank you for your support :)
Watch the full video on our channel to learn more!
Tebrikler 🌷
:)
Sevgili Furkan, “Ülküm; yükselmek, ileri gitmektir.” sözleri çalışmaların ve keşfin ile anlam buldu. Bizlere verdiğin ilham ve en önemlisi insanlığa sunduğun katkı için teşekkürler, gurur duyduk. ❤️
Thank you for watching!
yürü be FURKAN REYİZ adamsın. aynen böyle devam takipteyiz
Thank you for watching!
I got goosebumps over here. Good work!
Thank you!
TEBRİK EDİYORUMMMMMM
:)
Tek kelimeyle muhteşem💯 Başarıların devamını dilerim Furkan 🇹🇷
Thank you for watching!
❤
:)
sonda mevlevi kültürümüzü gösteren adam gibi adam furkan öztürk
:)
tebrikler Furkan, gurur kaynağımızsın. Senden gelecekte bir Nobel bekliyoruz...
Thank you for watching!
Mr. Ozturk is a true scientist! Thank you.
Thank you for watching!
Incredible!
:)
Gururumuz. Allah başarılarını daim etsin .❤
Thank you for watching!
I thought it was a woman talking
Congratulations Furkan Öztürk!
:)
I need that sharp transition from "I hated chemistry" to "I love it now."
:)
thats the last thing we need, just use biodegradable plastics
Enzymes that eat plastic will never stop being cool to me!!
Us too!