Translation:He puts a heavy stone on the table.
If anyone wonders, legatrix' comment probably refers to tungsten, a chemical element the existence of which was predicted by two Swedish chemists. The discovery itself was later made by two Spanish brothers. Chemistry is an area where Swedish scientists have historically been very successful, as you can see from this table:
And Americans found all the radioactive stuff, it seems, unless I am remembering the periodic table incorrectly (please). . .
Hmm, can see a little hint in there. Just reminding us of Sweden's contributions to world knowledge, no doubt!