Liste des hashtags les plus populaires par sujet #NEILDEGRASSETYSON

#carlsagan

Well said what do you think?

I just love this guy what about you? #rickygervais

This is so cool #neildegrassetyson I don’t know who’s this is. DM for credit or removal.

I cannot decide if Einstein or Hawking what about you?

One of the greatest no? #nikolatesla

Shine.

Io and Europa over Jupiter's swirling Great Red Spot Credit: NASA/JPL/Kevin M. Gill #neildegrassetyson #jupiter #science #space #nasa #spacetravel #physics

"Evolution of a Tornado" This image was created from 8 still photographs that I pulled from the timelapse I posted yesterday. You may see this online posted as a "mass of tornadoes", but it is actually one tornado from its formation to mature stage. #Repost @jasonweingart Most tornadoes form from thunderstorms. When warm moist air and cold, dry air meet, they create instability in the atmosphere. A change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. Rising air within the updraft tilts the rotating air from horizontal to vertical. An area of rotation, 2-6 miles wide, now extends through much of the storm. Most strong and violent tornadoes form within this area of strong rotation. #tornado #kansas #weather #nature #adventure #photoshop #timelapse #neildegrassetyson