Were there any problems with the experiment or the methods? Did you have any surprising results?

As an AI, I do not have direct information about specific experiments or methods. However, experiments are prone to various problems and challenges that researchers need to address. Some common issues could include:

1. Sampling Bias: If the sample used in the experiment is not representative of the overall population or contains biases, it can affect the reliability and generalizability of the results.

2. Measurement Errors: Errors in the measurement instruments or procedures can introduce noise and inaccuracies into the data collected, potentially impacting the validity of the experiment.

3. Confounding Variables: Uncontrolled variables or confounding factors that were not accounted for in the experiment can influence the results, leading to false or misleading conclusions.

4. Small Sample Size: If the sample size is small, it may not provide enough statistical power to detect significant effects or relationships accurately.

Surprising results can occur when the observed outcomes deviate from what was initially expected or hypothesized. These unexpected findings can open up new areas for research, challenge preconceived notions, or provide valuable insights into the phenomenon being studied. Surprising results can be both positive and negative, and they often encourage further investigation and experimentation to validate and understand the underlying reasons behind them.