HL – Evolution of the Universe [IB Physics HL]

The app just launched and you can try it out for free.

I think you'll love what we've been working on!
-Mitch

[bigbadwussnah]

Thank you mitch. Before this, i was failing IB physics, homeless, and a daily drug user. Although after this lecture series, I am now a father of 9, a trillionaire, president of NASA, and an astronaut. 🙏🙏🙏

[heftycode]

You are the only reason I'll actually perform somewhat well in the Paper 3 next week. Thank you for being the teacher I wish I had 🙏

[arefalkouatli]

Great work! Your detailed description of this option is such a life saver!!!

[jaimeellen]

I love your memes, they give me the energy to leave for the exam. Thank you for this wonderful playlist!

[NourEldinElgammal]

literally have my paper three in about 3 hours, thank you for being the hero that we never wanted, but we needed

[kinleywminerals]

no time cant make a long comment, but am eternally grateful to you

[Echer]

amazing playlist on option D, saving my career

[ArundhatiVasishth-en]

Havent met you, but you've already taught more than my phy teacher

[sherinephilip]

Hi Mitch, I've basically had your physics videos open for the entirety of my IB2 year and I've watched basically all your videos on all the topics - and this if the final one. It feels like a bitter-sweet goodbye :) You are an amazing teacher and I wish all the best for you in the future.

[hannawu]

Thank you so much! I forgot learning could be interesting

[Smile-oiwk]

Have my paper 3 in 5h. Thank you for the great resource for a last minute revision !! You’re amazing

[quotesformyself]

what a GOAT! I got my paper 3 in 5 days your saving my a** and probably going to be the reason I go and studying engineering :)

[learn]

Thanks a lot Mr.Mitch! Exams coming next week, and I wouldn't be ready without your videos!

[MayDay-zbky]

Someone give this man a lifeguard certificate

[VolcanicTV]

3 days before mock just finished it at 1am
Hopefully i will do well for paper 3 atleast - THANK U For the playlist finnaly was able to motivate myself to study :D

[pranaysaini]

I love you. That's all. Have a great day 🤩

[Chirantzm]

Paper 3 day after tommorow, this man saved my life.

[ishankumar]

probabluy not wise to try to learn all of astrophyics the day before the paper three. whoops

[Alkatraz]

if i ever discover a star im naming it after you

[ElSrna]

Really appreciate this series! Just a quick question, why did scientists expect the density of the universe to reach the critical point? If mass is constant and the universe is expanding, aka gaining volume, wouldn't density only decrease over time? Thanks in advance!