Sentence examples for however it's not certain from inspiring English sources

However, it's not certain that once airborne, the birds actually fly by their magnetic compass, Phillips notes; they may use it to get their bearings at dusk, then keep their eyes on the stars instead.

However, it's not certain that a new heaven and a new Earth await us.

However, it's not certain what the effects of very brief light exposures may be.

The analysis of Li-Fraumeni patients' fibroblasts supports Lozano's conclusion; however, it is not certain whether the H-318 cell line derives from the selection for cells with a hemizygous mutation or the generation of 17p LOH in vitro.

However, it is not certain that economically viable RETs will be utilized since this is greatly influenced by social, institutional, and political factors.

With the change in administrations in Washington, however, it was not certain Tillerson would attend until it was too late to book a large block of rooms for him and his entourage.

Hayati Yazici, deputy prime minister who happened to be visiting Istanbul on Sunday, visited the bombing site and told the Anatolian News Agency: "It is obvious that this is the work of a villain organization, a person or people, however it is not certain as to who this is.

However, it is not certain that experts judge risks correctly [8, 9].

However, it is not certain that this concept can be easily reproduced in all other local communities.

However, it is not certain, that some of the natural substances in these products comprise allergenic fragrances as constituents.

However, it is not certain that (1) various nail types will give comparable results or (2) the same iron nails at locations with very different water chemistry would work well.