<s>
Open	B-Application
Source	I-Application
Physics	I-Application
,	O
or	O
OSP	O
,	O
is	O
a	O
project	O
sponsored	O
by	O
the	O
National	O
Science	O
Foundation	O
and	O
Davidson	O
College	O
,	O
whose	O
mission	O
is	O
to	O
spread	O
the	O
use	O
of	O
open	B-Application
source	I-Application
code	I-Application
libraries	O
that	O
take	O
care	O
of	O
a	O
lot	O
of	O
the	O
heavy	O
lifting	O
for	O
physics	O
:	O
drawing	O
and	O
plotting	O
,	O
differential	O
equation	O
solvers	O
,	O
exporting	O
to	O
animated	O
GIFs	O
and	O
movies	O
,	O
etc.	O
,	O
tools	O
,	O
and	O
compiled	O
simulations	O
for	O
physics	O
and	O
other	O
numerical	B-Application
simulations	I-Application
.	O
</s>
<s>
The	O
OSP	O
collection	O
provides	O
curriculum	O
resources	O
that	O
engage	O
students	O
in	O
physics	O
,	O
computation	O
,	O
and	O
computer	B-Application
modeling	I-Application
.	O
</s>
<s>
The	O
code	O
library	O
is	O
in	O
the	O
Java	B-Language
programming	I-Language
language	I-Language
and	O
licensed	O
with	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GNU	B-License
GPL	I-License
or	O
simply	O
GPL	B-License
)	O
licenses	O
.	O
</s>
<s>
The	O
Open	B-Application
Source	I-Application
Physics	I-Application
Project	O
is	O
an	O
extension	O
of	O
the	O
Physlet	B-Application
Project	O
.	O
</s>
<s>
OSP	O
libraries	O
:	O
Java	B-Language
code	I-Language
libraries	O
for	O
numerical	B-Application
simulations	I-Application
.	O
</s>
<s>
OSP	O
code	O
library	O
is	O
described	O
in	O
the	O
OSP	O
User	O
's	O
Guide	O
by	O
Wolfgang	O
Christian	O
in	O
An	O
Introduction	O
to	O
Computer	B-Application
Simulation	I-Application
Methods	O
by	O
Harvey	O
Gould	O
,	O
Jan	O
Tobochnik	O
,	O
and	O
Wolfgang	O
Christian	O
.	O
</s>
<s>
Easy	B-Application
Java	I-Application
Simulations	I-Application
(	O
EJS	B-Application
)	O
(	O
New	O
name	O
:	O
Easy	O
JavaScript	O
Simulations	O
=	O
EjsS	O
)	O
:	O
A	O
free	O
and	O
open	O
source	O
computer-based	O
modeling	O
environment	O
used	O
to	O
generate	O
automatically	O
Java	B-Language
and	O
JavaScript	O
code	O
.	O
</s>
<s>
Easy	O
JavaScript	O
Simulations	O
is	O
an	O
authoring	O
and	O
modeling	O
tool	O
that	O
allows	O
users	O
to	O
create	O
Java	B-Language
or	O
JavaScript	O
programs	O
with	O
minimal	O
programming	O
.	O
</s>
<s>
Tracker	O
:	O
An	O
open-source	B-Application
software	I-Application
video	O
analysis	O
and	O
modeling	O
tool	O
designed	O
for	O
use	O
in	O
physics	O
education	O
and	O
distributed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
Tracker	O
has	O
a	O
built-in	O
dynamic	B-Application
model	I-Application
builder	O
to	O
define	O
particles	O
that	O
move	O
according	O
to	O
Newton	O
's	O
laws	O
.	O
</s>
<s>
External	O
models	O
built	O
with	O
spreadsheets	B-Application
,	O
Easy	B-Application
Java	I-Application
Simulations	I-Application
or	O
other	O
modeling	O
program	O
can	O
also	O
be	O
used	O
.	O
</s>
<s>
For	O
convenience	O
,	O
OSP	O
programs	O
are	O
almost	O
always	O
packaged	O
in	O
Java	B-Language
archive	O
(	O
jar	O
)	O
files	O
.	O
</s>
