World's Lightest Solid!

  • Published: 31 May 2019
  • Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically the lightest.

    At one point Dr. Steven Jones literally held the Guinness World Record for making the lightest aerogel and therefore lightest solid. If you're interested in learning more about aerogels, let me know in the comments as there is a potential trilogy in the works...

    Huge thanks to Dr. Stephen Steiner and the crew at Aerogel Technologies. To find out more or buy your own aerogel sample, check out:

    Thanks to Dr. Steven Jones and Dr. Mihail Petkov at NASA's Jet Propulsion Laboratory

    And thanks to FLIR for loaning us the awesome high definition thermal camera. The footage is amazing!

    Special thanks to Patreon supporters:
    Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme and everyone who provided feedback on an early draft of this video.

    Filming by Raquel Nuno
    Animations by Maria Raykova
    Drawings by Mariel Solsberg

    Music From "Seaweed" "Swagger Stagger"

Comments • 21 333

  • 張志成
    張志成  10 minutes back

    really innovative

    • Will Harrington
      Will Harrington  2 hours back

      Imagine this but a scooter made out of it I know you will say it will break but just amagine

      • Leo Ying
        Leo Ying  10 hours back

        i probably shouldnt show this to my pet bunnies

        • DanielinLaTuna
          DanielinLaTuna  10 hours back

          So if the bunny was on a platform with walls made of aerogel too, it shouldn’t melt via convection?

          • Stan TheObserver
            Stan TheObserver  12 hours back

            You have the $10,000 camera and the guy filming you is using an

            • Stan TheObserver
              Stan TheObserver  12 hours back

              WONDER BREAD kicks this and Lay's but. You pick up a slice of Wonder Bread and you float.

              • lassi kokkonen
                lassi kokkonen  14 hours back

                What kind of chocolate is that
                My chocolate melts on my computer fast

                • Chil fghfh
                  Chil fghfh  14 hours back

                  Bruh got a barrier block

                  • Steven Sears
                    Steven Sears  16 hours back

                    8:00 I hear the drums of Halo

                    • Matt Davis
                      Matt Davis  17 hours back

                      I want it

                      • you are here
                        you are here  24 hours back

                        Can't wait to see the nex one in the series. Please keep going! Thank you! Been fascinated by aerogel forever.

                        • JJ Tatum
                          JJ Tatum  1 days back

                          The fact that THE BUNNY LANDED RIGHT SIDE UP

                          • Sagar bara Sagar
                            Sagar bara Sagar  1 days back

                            Show erogel test of strength, atmosphere resistance, torsion, as well as possiblity?

                            • Vinton Lindo
                              Vinton Lindo  1 days back

                              Modern Alchemy right before our eyes 😴 this reminds me of the FIRMAMENT and something called the (Blue) Sky Crystal

                              • Marksmithwas12
                                Marksmithwas12  2 days back

                                So you're saying, that this solid is 99.8% a gas?

                                • NightcoreHardstyle
                                  NightcoreHardstyle  2 days back

                                  Is that the substance using which the face glass of a vulcanologist's suit is made of?

                                  • Aaron Georgevich
                                    Aaron Georgevich  2 days back

                                    6:12 "gross"

                                    • Amir Ali
                                      Amir Ali  2 days back

                                      hello man how are you

                                      • Man-About-Sound
                                        Man-About-Sound  2 days back

                                        lol. "i'm gonna taste this chocolate"...."gross" hahaha

                                        • Matt George
                                          Matt George  2 days back

                                          What pressure do they do each piece? Is the pressure put on with the Co2 or is it regular air?

                                          • Jude Matteur Fernandez

                                            Hey guysss can you suggest a research for aerogel?

                                            • Esther Iavazzo
                                              Esther Iavazzo  2 days back

                                              I don't know why but i wanted to see him crush it for some reason..

                                              • freddyzdead1
                                                freddyzdead1  2 days back

                                                I'm sorry, I just can't abide someone who calls himself "Veritasium". Why don't you just go all the way and call yourself "god"?

                                                • Filip Petrucha
                                                  Filip Petrucha  2 days back


                                                  • 최요섭
                                                    최요섭  2 days back

                                                    mysterious youtube
                                                    algorithm bring me here

                                                    • Jasmijn ariel
                                                      Jasmijn ariel  2 days back

                                                      If it is solid...? Put it under a press 🤣

                                                      • Josue Salinas Ochoa
                                                        Josue Salinas Ochoa  3 days back


                                                        • Aurelia Alexandrina Anghel

                                                          You could use this to go into the middle of the earth.

                                                          • currupipi
                                                            currupipi  3 days back

                                                            what about noise insulation??

                                                            • Ollie Cole
                                                              Ollie Cole  3 days back

                                                              I was looking at buying this as its pretty cool, then I realised it costs more than Gold

                                                              • Blaçk Màsk
                                                                Blaçk Màsk  3 days back

                                                                Lay's has entered the chat..

                                                                • 류제란
                                                                  류제란  3 days back

                                                                  와 너무 사랑스러운 물질이다 ㅜㅜㅜㅜㅜㅜㅜ

                                                                  • 타마
                                                                    타마  3 days back

                                                                    에어로졸이랑 에어로젤이 같은건가요? 전 다른걸로 알고 있는데요...

                                                                    • MosquitoHunter
                                                                      MosquitoHunter  3 days back

                                                                      I wonder if this would make effective insulation for firefighting gear?

                                                                      • puru pokhrel
                                                                        puru pokhrel  3 days back

                                                                        Fire fighters should wear suits of air jell if heat diffuses through that slow.

                                                                        • Kushman 420 TV
                                                                          Kushman 420 TV  3 days back

                                                                          Airogell bullets

                                                                          • Original Man
                                                                            Original Man  3 days back

                                                                            So why the hell were we using asbestos .

                                                                            • Antler Assassins TV- Bowhunting Television

                                                                              Trilogy renamed:
                                                                              This guys Hard on for Aerogel

                                                                              • E hhh
                                                                                E hhh  3 days back

                                                                                Great informational video

                                                                                • Eric Booth
                                                                                  Eric Booth  3 days back

                                                                                  Anybody else hear the Halo Reach music around 8:15? I’ve also heard a TV show use the same music. I guess Bungie just remixed a sample tune.

                                                                                  • Alex Cooke
                                                                                    Alex Cooke  3 days back

                                                                                    It should be possible to print a house using this and another substance.

                                                                                    • Alannah Frederic!
                                                                                      Alannah Frederic!  3 days back

                                                                                      Steven: this is the lightest soild
                                                                                      Me: so you froze your hot breath

                                                                                      • True Janey  Sue
                                                                                        True Janey Sue  3 days back

                                                                                        Now that's cool!

                                                                                        • It'sAJoker
                                                                                          It'sAJoker  3 days back

                                                                                          I thought a paper clip was the lightest solid

                                                                                          • Burak & Gizem
                                                                                            Burak & Gizem  4 days back

                                                                                            abi bu işi tam anlamı ile yaptığınızı düşünmüyorum şöyleki dünyanın düz olduğu şu zamanlarda tepsi değil bak düz dümdüz olduğu vakitler aqrasında bu dediğinin mantığının hiçbir özverili yanı olmamasına rağmen amma velakin katha selakin yani aslında demem o ki şu vakitlerde burçlar ve dönenge zamanlarında basit olayların çerçevesinde dönen birtakım o9laylar esnasında senin bu yaptığın deneye ne sikemne yaradı

                                                                                            • Korekshan Radio
                                                                                              Korekshan Radio  4 days back

                                                                                              Imagine this material in the state of a condom

                                                                                              • Flofy387
                                                                                                Flofy387  4 days back

                                                                                                Amazing what science brings up... :D

                                                                                                • daniel ash
                                                                                                  daniel ash  4 days back

                                                                                                  Aria gel housings?