<s>
It	O
provides	O
native	O
support	O
for	O
modeling	O
the	O
rigid	O
body	O
physics	O
for	O
the	O
Newton	B-Application
Game	I-Application
Dynamics	I-Application
,	O
the	O
Open	B-Application
Dynamics	I-Application
Engine	I-Application
and	O
PhysX	B-Operating_System
engine	O
.	O
</s>
<s>
The	O
Scythe	B-Application
Physics	I-Application
Editor	I-Application
was	O
first	O
developed	O
as	O
closed	B-Application
source	I-Application
software	I-Application
in	O
2006	O
.	O
</s>
<s>
It	O
was	O
released	O
as	O
open	B-Application
source	I-Application
software	I-Application
with	O
a	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
in	O
September	O
2007	O
,	O
after	O
the	O
developers	O
decided	O
to	O
focus	O
activities	O
on	O
a	O
new	O
game	O
.	O
</s>
