Volker Siegel's user avatar
Volker Siegel's user avatar
Volker Siegel's user avatar
Volker Siegel
  • Member for 10 years
  • Last seen more than a month ago
  • Berlin, Germany
23 votes
2 answers
3k views

How can the organic mercury compound Thiomersal be not dangerously toxic?

20 votes
2 answers
26k views

How does isopropyl alcohol disinfect less in higher concentration?

15 votes
3 answers
2k views

Is there a fundamental reason that plants cannot fix their own nitrogen?

7 votes
2 answers
679 views

Why does botulinum toxin seem to be more dangerous to humans than to other mammals?

3 votes
1 answer
1k views

What makes heavy metals toxic?

2 votes
0 answers
39 views

Incremental denaturation of protein mixtures

1 vote
1 answer
104 views

What happens to the language processing brain part if no language is ever learned?

1 vote
1 answer
144 views

How are proteins reused in the body? [duplicate]

1 vote
1 answer
157 views

Does a virus have a well defined shape? [closed]

0 votes
0 answers
57 views

Does the body use radio frequencies in the range of frequencies used in mobile phone networks?

0 votes
1 answer
31 views

Is there a balance or feedback between O₂ and CO₂ in the atmosphere?

-1 votes
2 answers
200 views

Will all bacteria become resistant against all antibiotics in the long term?