Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:scientific_instrument
|
| gptkbp:component |
early cathode ray experiments
|
| gptkbp:introducedIn |
circa 1828
|
| gptkbp:inventedBy |
gptkb:Peter_Barlow
|
| gptkbp:material |
gptkb:glass
|
| gptkbp:operates |
high voltage
|
| gptkbp:relatedTo |
gptkb:vacuum_tube
electron discovery |
| gptkbp:usedFor |
demonstrating the deflection of cathode rays by magnetic fields
|
| gptkbp:usedIn |
physics education
|
| gptkbp:bfsParent |
gptkb:Peter_W._Barlow
|
| gptkbp:bfsLayer |
8
|
| http://www.w3.org/2000/01/rdf-schema#label |
Barlow's tube
|