Mr. Sulkowski's Activity (789)
yas added a book review.
It looks so coooooooolAlmost 5 years ago
howellmsndayamiliked a comment in Scientists Discover The Obvious - Teenage Brains Are Wired To Be Impatient And Impulsive!.
Wow that's something new.About 9 years agohowellmsndayamiliked a comment in Scientists Discover The Obvious - Teenage Brains Are Wired To Be Impatient And Impulsive!.
this is cool because my brother is very impatientAbout 9 years agohowellmsndayamiliked a comment in Scientists Discover The Obvious - Teenage Brains Are Wired To Be Impatient And Impulsive!.
Interesting. I don't know any teenagers, so it's good to know about thatAbout 9 years ago
inuyasha added a new comment in
Cool 😎😎😎😎😎😄😳Over 9 years agoinuyasha replied to a comment in
Over 9 years ago
edwinsky added a new comment in
Cool this might work!Over 9 years agoedwinsky added a new comment in
Best inventionOver 9 years agoinuyasha added a news bookmark.
Concrete has been a major contributor to the spread of civilization. From the Pantheon built by the Romans almost 2,000 years ago to our homes today, the concoction made from wa...Over 9 years agoinuyashaliked a comment in Self Healing Concrete Uses Bacteria To Repair Cracks.
cool for inventionsOver 9 years ago